KR102165905B1 - deep fire and its manufacturing method - Google Patents

Abstract

The present invention relates to a manufacturing method of a solidified material for a deep layer and, more specifically, to a manufacturing method of a solidified material for a deep layer, which exhibits excellent dispersibility and strength when mixing with soil, and can effectively solidify a soft ground, wherein the soft ground is composed of viscous soil with high water content even in small quantities and soils containing a large amount of organic matter.

Description

Deep fire and its manufacturing method {deep fire and its manufacturing method}

The present invention relates to a solidified material for deep layers and a method of manufacturing the same, and more particularly, a solidified material for deep layers having the characteristics of securing bearing strength by forming a bulb in the original ground of the ground wall composition and order and soft ground, and its manufacture It's about how.

In Korea, where the national territory is narrow, many construction and civil works are being performed to reclaim coastal areas. However, in the coastal areas of the south and west coasts, there are many difficulties in construction due to the thick distribution of clay sediments.

Therefore, for soft ground in such coastal areas, cement (usually portland cement) is used to solidify the ground, but in special cases, cement such as slag cement or crude steel cement is used instead of portland cement. They are also using the method of making them angry.

At this time, the cement does not immediately harden when it comes into contact with water, but hardens after maintaining the firing state for a certain period of time, and this step is called setting. The calcined cement undergoes a step of hardening in which the cement particles are densely filled and hardened, and the strength is increased after coagulation is completed.

This is because each of the compounds constituting the cement undergoes a unique chemical reaction with water to change into another compound. This action is called hydration. However, in the case of clay with a high water content or a soft ground containing organic matter, the clay and organic matter interfere with the hydration reaction of the cement, making solidification treatment impossible.

In order to solve this problem, by using a solidified material mixed with additives according to the ground characteristics or the purpose of construction in cement, a large amount of ettringite is produced, thereby absorbing a large amount of bound water to reduce the water content and to reduce the water content. It constrains the movement of and converts it into a state where solidification is easy.

In addition, coagulation and solidification of earth particles is further strengthened by calcium ions (Ca+) eluted from calcium hydroxide (Ca(OH)2) and calcium silicate (CaSi2), and the strength is increased by the formation of calcium silicate hydrate.

In addition, soluble hydrates such as silica (SiO2) and alumina (Al2O3) contained in the soil are combined with calcium hydroxide to form insoluble hydrates, thereby becoming harder as the age elapses.

However, in the case of a soft ground containing a large amount of organic matter due to long-term deposition or organic waste among the soft ground, the organic matter is adsorbed on the surface of the earth particles and prevents the mixed contact between the solidified material and the soft ground. There was a problem in that the direct reaction of the liver was not smooth, making it difficult to proceed with solidification.

In addition, even when the moisture content is very high, such as in a coastal area, solidification does not proceed smoothly even if a conventional solidified material is used, so that satisfactory solidification strength cannot be obtained.

In order to solve the above problems, solidifying materials composed of various components have been invented and distributed.However, since a large amount of cement is used as the main raw material, hardening is slow and heat of hydration occurs during solidification, causing volume change. There was still a problem with this occurring.

In general, mud or soft ground soil containing excessive moisture is cured by stirring the solidified material on the soft ground soil before construction or construction or civil works to solidify the ground. Therefore, since the soft ground is hardened by solidification, heavy construction equipment can perform work while moving the ground surface or construct buildings, bridges, or roads on the soft ground.

Since most of these solidified materials are mainly composed of cement, the weight is heavy, the hardening speed is slow, it is not easy to strengthen the bearing capacity, and the soil quality may be degraded or contaminated as strong alkali and chromium are contained.

Korean Patent Registration No. 10-1267479

An object of the present invention is to increase the strength of the soft ground by strengthening the soil bearing capacity and improving the soil quality by having the characteristics of securing bearing strength by forming a bulb in the original ground of the ground wall composition and order and soft ground.

In the method for producing a solidified material for deep layers according to the present invention, the solidified material for deep layers is 18 to 24 parts by weight of fly ash, 2 to 8 parts by weight of lime, calcium aluminate (CaAl2O4 or Ca3Al2O6) based on 100 parts by weight of blast furnace slag. 1 to 5 parts by weight, Montmorillonite 07 to 18 parts by weight, Kaolinite 1 to 3 parts by weight, Talc 1 to 25 parts by weight, Perlite 9 to 23 parts by weight, Cermet 2 to 8 parts by weight, 3 to 8 parts by weight of mica, 3 to 7 parts by weight of Sepiolite, 15 to 3 parts by weight of dry pigment and 5 to 9 parts by weight of calcined calcium as a soil modifier, 4 to 10 parts by weight of siliceous minerals The addition is mixed.

The manufacturing method of the deep layer solidified material uses green mud bentonite, pozzolanic volcanic soil and shells,

Green mud bentonite powder manufacturing step of preparing the green mud bentonite into dried powder;

Pozzolanic volcanic soil processing step of obtaining powdered siliceous minerals through a processing process of heating and pulverizing the pozzolanic volcanic soil;

A shell processing step of obtaining powdered calcined calcium through a processing step of heating and pulverizing the shell;

A wind pressure providing step of collecting only fine particles scattered up to a set distance by providing a wind pressure in a state in which the powdered green mud bentonite, the siliceous mineral, and the calcined calcium are separated from each other, and

15 to 3 parts by weight of the particulate green mud bentonite, 4 to 10 parts by weight of the siliceous mineral, and 5 to 9 parts by weight of calcined calcium are mixed with respect to 100 parts by weight of blast furnace slag, but fly ash 18 based on 100 parts by weight of the blast furnace slag To 24 parts by weight, lime 2 to 8 parts by weight, calcium aluminate (CaAl2O4 or Ca3Al2O6) 1 to 5 parts by weight, montmorillonite 07 to 18 parts by weight, kaolinite 1 to 3 parts by weight, talc 1 to 25 parts by weight, 9 to 23 parts by weight of Perlite, 2 to 8 parts by weight of Cermet, 3 to 8 parts by weight of mica, 3 to 7 parts by weight of Sepiolite are stirred together in a pulverized part It includes a mixture preparation step of preparing a mixture,

The green mud bentonite powder manufacturing step,

A heating step of dehydrating moisture by heating green mud bentonite in the form of a lump containing moisture at 150° C. to 220° C. for 12 to 24 hours;

A first pulverizing step of pulverizing the dehydrated green mud bentonite into a granule by putting it into a pulverizer;

Second pulverization step of pulverizing the green mud bentonite in the form of grains into a powder form by re-injecting the green mud bentonite into the stirring pulverization unit: and

A filtration step of sequentially permeating and filtering the green mud bentonite in the form of powder through a plurality of cylindrical filtration nets each consisting of 80 mesh, 150 mesh and 300 mesh to form an inclination,

The heating step,

A drying furnace input step of storing the green mud bentonite in the form of a lump containing moisture in a storage container and putting it into a vacuum dryer; And

Heating to extract bubbles and moisture into a vapor state through vacuum pressure of the vacuum pump while generating bubbles by heating the lump-shaped green mud bentonite stored in the reservoir by operating the heater and the vacuum pump in the sealed state of the vacuum drying unit And a vacuum step,

The first grinding step,

The grinding blade of the grinder is rotated at 320 rpm to 370 rpm per minute for 1 to 2 hours to pulverize the lump-shaped green mud bentonite stored in the enclosure type body of the grinder into granules,

The second grinding step,

The grinding blade of the grinder is rotated at 700 rpm to 750 rpm per minute for 4 to 5 hours to grind the granular green mud bentonite stored in the enclosure type body of the grinder into a powder form,

The filtering step,

Each of the 80 mesh, 150 mesh, and 300 mesh is provided with a cylindrical first cylindrical sieve to a third cylindrical sieve installed in an overlapping state, and in the first cylindrical sieve of the inclined triple net permeable section, An input step of introducing the powdered green mud bentonite; And

A transmission step of sequentially transmitting the powdered green mud bentonite through a first cylindrical sieve to a third cylindrical sieve by rotating the triple net permeable portion,

The pozzolanic volcanic soil processing step,

A high-temperature heating step of injecting pozzolanic volcanic soil in the form of a lump containing moisture into a heating furnace and heating it at a high temperature of 1200°C to 1500°C for 48 to 52 hours;

Crushing step of crushing the heated pozzolanic volcanic soil into a granule by putting it into a crusher:

Obtaining a silicate mineral by re-injecting the granular pozzolanic volcanic soil into the grinder and pulverizing it into a powder form; And

Including; a filtration step of sequentially permeating and filtering the powdered siliceous mineral through a plurality of cylindrical filtration nets each consisting of 80 mesh, 150 mesh, and 300 mesh to form an inclination,

The wind pressure providing step,

The powdered green mud bentonite, the siliceous mineral, and a plurality of input hoppers to which the calcined calcium are respectively input are provided on one side of the upper side, and a rectangular wind pressure duct provided with a powder discharge pipe at the lower side of the other side, the end of which is shielded, and the Powder for injecting the powdered green mud bentonite, the silicate mineral and the calcined calcium into each of the input hoppers of the wind pressure classification unit comprising a blowing fan provided at one end of the wind pressure duct and a collection pocket provided under the powder discharge pipe Input step; And

By providing wind pressure from one side of the wind pressure duct to the other side through the blowing fan to scatter the powder to the other side of the wind pressure duct to collect the powder scattered through the powder discharge pipe into the collection pocket, Includes; blowing step of separating only the powder in the form of fine particles,

The shell processing step,

A salt removal step of washing the shell to remove salt;

A drying step of drying the washed shell with hot air;

Shell heating step of putting the dried shell into a heating furnace and heating it at a high temperature of 700°C to 900°C for 24 to 30 hours;

A grinding step of cooling the heated shell and grinding it into a powder form to obtain powdered calcined calcium; And

A filtration step of sequentially permeating and filtering the powdered shells through a plurality of cylindrical filtration nets forming an inclination by consisting of 80 mesh, 150 mesh and 300 mesh, respectively,

Each step of preparing the particulate green mud bentonite,

It includes a raw material manufacturing device for manufacturing using pulverization, permeation, drying and wind pressure,

The raw material manufacturing apparatus,

A stirring and pulverizing unit formed on the ground to crush the green mud bentonite according to a preset time;

A triple net permeable portion formed on the ground of one side of the stirring and pulverizing portion to sequentially permeate the pulverized green mud bentonite through the first cylindrical sieve, the second cylindrical sieve, and the third cylindrical sieve;

A vacuum drying unit formed on one side of the triple net permeable unit to generate bubbles by heating green mud bentonite to extract bubbles and moisture into a vapor state by vacuum pressure;

It includes a wind pressure classification unit formed on the ground of one side of the vacuum drying unit to provide wind pressure to scatter the powder input from the upper side and collect it toward the collection pocket to separate the fine particles,

The stirring and grinding unit,

A housing-type body formed above the ground to stir and crush green mud bentonite;

A housing lid formed to be opened and closed at an opening formed in the upper portion of the housing type body to discharge each raw material input and stirred and pulverized raw material;

A grinding blade formed under the housing lid to crush green mud bentonite in a lump inside the housing body;

It includes a crushing motor formed on the upper part of the housing lid to rotate the crushing blade,

The triple network transmission unit,

A sieve chamber formed on the ground to support the first to third cylindrical sieves;

A first cylindrical sieve formed in the center of the sieve chamber to first filter the powdered green mud bentonite that is pulverized and introduced;

A second cylindrical strainer formed at predetermined intervals around the outer circumference of the first cylindrical sieve in order to secondly filter the green mud bentonite filtered through the first cylindrical sieve;

A third cylindrical strainer formed at regular intervals around the outer circumference of the second cylindrical sieve to filter the green mud bentonite filtered through the second cylindrical sieve;

A powder outlet formed at one side of the sieve chamber to discharge the powdered green mud bentonite filtered through the third cylindrical sieve;

It includes a mesh rotation motor formed at one side of the sieve chamber so that the first to third cylindrical sieves are rotated based on the sieve chamber,

The vacuum drying unit,

A drying chamber formed on the ground to dry green mud bentonite stored in the storage bin;

A heating heater formed on the bottom surface of the drying chamber to heat the inside to dry the green mud bentonite;

A sealing door formed to open and close to one side of the drying chamber in order to maintain a vacuum state inside the drying chamber;

A sealing handle formed on an outer side of the sealing door so that the sealing door is locked in a screw manner so that the sealing door is fixed to the drying chamber;

A vacuum pump formed at an upper side of the drying chamber to form the inside of the drying chamber with the sealing door closed in a vacuum state;

It includes a storage bin formed above the heating heater so that green mud bentonite is stored and dried,

The wind pressure classification unit,

Wind pressure ducts formed at regular intervals from the ground in the longitudinal direction;

A blowing fan formed inside the wind pressure duct to apply wind pressure to the powdered green mud bentonite introduced into the wind pressure duct;

An input hopper formed on one side of the upper wind pressure duct to introduce powdered green mud bentonite into the wind pressure duct;

A powder discharge pipe formed at a lower side of the wind pressure duct to discharge particulate green mud bentonite scattered and moved;

It includes a collection pocket formed to slide from one side under the wind pressure duct so that particulate green mud bentonite discharged through the powder discharge pipe is collected,

The stirring and grinding unit,

The green mud bentonite is stirred and pulverized at the same time, and further includes a spraying and pulverizing unit for efficient stirring by spraying air,

The spray pulverization unit,

A stirring blade vertically formed in the center of the enclosure type body;

A first grinding blade formed at any one of one side or an upper portion to grind green mud bentonite;

A second grinding blade formed at one of the other side or the lower side to grind green mud bentonite;

A plurality of air spray nozzles formed around the enclosure body to spray air for stirring and pulverizing green mud bentonite to move from top to bottom and from bottom to top;

In order to supply air to the air injection nozzle, one side is connected to the air injection nozzle, and the other side includes an air supply pipe connected to an air pump formed to the outside,

The triple network transmission unit,

Further comprising a rotating strainer for rotating the first cylindrical sieve and the third cylindrical sieve in different directions,

The rotating filter unit,

A plurality of contact bars formed around the inner circumference of the first cylindrical strainer so that the rotating powdered green mud bentonite does not come into contact and clumps;

A first rotating motor formed under the sieve chamber to generate power for rotating the first cylindrical sieve;

A first rotating gear formed around one side of the first cylindrical strainer to receive rotational power generated by the first rotating motor;

A first rotating belt connected between the motor gear of the first rotating motor and the first rotating gear to provide rotational power generated by the first rotating motor to the first rotating gear side;

A mesh fixing flange formed at one side of the second cylindrical sieve and one side of the sieve chamber to fix the second cylindrical sieve in the sieve chamber;

A second rotary motor formed above the sieve chamber to generate power for rotating the third cylindrical sieve;

A second rotation gear formed through the sieve chamber through the sieve chamber toward one side of the third cylindrical sieve in order to receive rotation power generated by the second rotation motor;

And a second rotation belt connected between the motor gear of the second rotation motor and the second rotation gear in order to provide rotational power generated by the second rotational motor toward the second rotational gear,

The wind pressure classification unit,

Further comprising a powder control sorting unit for controlling the amount of powdered green mud bentonite to be injected into the input hopper and preventing the scattered particulate green mud bentonite from flowing back,

The powder control classification unit,

Powder control means for adjusting the amount of powdered green mud bentonite to be introduced into the input hopper; And

It includes a backflow prevention means for preventing the scattered particulate green mud bentonite from backflowing,

The powder control means,

A powder control panel formed at an upper side and a lower side inside the input hopper to control the powder to be added;

It includes control cylinders respectively formed on the powder control panel formed in the upper and lower sides of the input hopper,

The backflow preventing means,

A backflow prevention panel formed to be inclined toward one side inside the wind pressure duct so that the particulate green mud bentonite scattered and moved does not flow back toward the blowing fan;

A panel control cylinder formed at one side of the backflow prevention panel to adjust the length of the backflow prevention panel;

A wind direction control panel formed to be inclined to an upper side of the wind pressure duct in order to change the moving direction of the scattered particulate green mud bentonite;

In order to adjust the inclination angle of the wind direction control panel, it includes an angle control motor connected to the wind direction control panel on one side outside the wind pressure duct.

The present invention can supply nutrients while reinforcing the bearing capacity of the soft ground by forming a bulb in the original ground of the ground wall composition and order and soft ground to secure bearing strength.

Particularly, fast hardening can be expected with sepiolite, and the adhesion of the solidified material to the dredged soil can be strengthened by the ceramic fiber, and long-term stabilization of the soft ground against freezing and thawing can be achieved through zirconium oxide. By improving the moisture absorption rate through perlite and paracell, the curing speed can be further shortened, and the weight according to the volume of the solidified material can be further reduced.

In addition, it is possible to supply nutrients to the improved soil of the soft ground through a soil improvement agent, and the color of the improved soil can be varied through dry pigments, so it is possible to supply nutrients while enhancing the bearing capacity of the soft ground. Can provide.

In addition, through the green mud bentonite powder manufacturing step and pozzolanic volcanic soil processing step of the manufacturing method of the present invention, domestically produced green mud bentonite and pozzolanic volcanic soil can be used as a solidifying material, as well as providing a solidified material mixed with siliceous minerals. In addition, the shell can be recycled as a solidified material through the shell processing step, as well as a solidified material mixed with calcined calcium can be provided.

In addition, since only fine particles can be extracted from powdered green mud bentonite, siliceous minerals, and calcined calcium through the wind pressure providing step, a solidified material in which these fine particles are mixed can be provided, and accordingly, a high-quality solidified material can be supplied.

1 is a table showing the mixing ratio of the solidified material according to Examples 1 to 5 of the method for producing a solidified material for deep layers of the present invention.
2 is a table showing the mixing ratio of the solidified material according to Examples 6 to 10 of the method of manufacturing a deep-layer solidified material of the present invention.
3 is a table showing the test results for Examples 1 to 10 of the method for manufacturing a solidified material for deep layers of the present invention.
Figure 4a is a table showing the mixing ratio of the solidified material according to Examples 11 to 13 of the method for producing a solidified material for deep layers of the present invention.
Figure 4b is a table showing the mixing ratio of the solidified material according to Examples 14 to 16 of the method for producing a solidified material for deep layers of the present invention.
5 is a conceptual diagram showing a stirring and pulverizing portion of the raw material manufacturing apparatus in the method for manufacturing a solidified material for deep layers of the present invention.
6 is a conceptual diagram showing a triple net permeable part of the raw material manufacturing apparatus in the method of manufacturing a solidified material for deep layers of the present invention.
7 is a conceptual diagram showing a vacuum drying unit of the raw material manufacturing apparatus in the method for manufacturing a solidified material for deep layers of the present invention.
8 is a perspective view showing a wind pressure classification part of the raw material manufacturing apparatus in the method of manufacturing a solidified material for deep layers of the present invention.
9 is a cross-sectional view of FIG. 8.
10 is a view showing another embodiment of the agitation pulverization unit spray pulverization.
9 is a view showing another embodiment of a rotary filter for a triple network transmission unit.
10 is a view showing a powder control classifier, another embodiment of the wind pressure classifier.

DETAILED DESCRIPTION OF THE INVENTION The detailed description of the present invention to be described later refers to the accompanying drawings, which illustrate specific embodiments in which the present invention may be practiced. These embodiments are described in detail sufficient to enable a person skilled in the art to practice the present invention. It is to be understood that the various embodiments of the present invention are different from each other, but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the present invention in relation to one embodiment. In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the present invention. Accordingly, the detailed description to be described below is not intended to be taken in a limiting sense, and the scope of the present invention, if appropriately described, is limited only by the appended claims, along with all scopes equivalent to those claimed by the claims. Like reference numerals in the drawings refer to the same or similar functions over several aspects.

A deep-layer solidifying material composition and a method of manufacturing the same according to an embodiment of the present invention, and a solidifying material thereof will be described as follows.

The solidification composition for deep layers according to an embodiment of the present invention is 18 to 24 parts by weight of fly ash, 2 to 8 parts by weight of lime, 1 to 5 parts by weight of calcium aluminate (CaAl2O4 or Ca3Al2O6) based on 100 parts by weight of blast furnace slag , Montmorillonite (Montmorillonite) 0.7 to 1.8 parts by weight, Kaolinite (Kaolinite) 1 to 3 parts by weight, Talc (Talc) 1 to 2.5 parts by weight, Perlite (Perlite) 9 to 23 parts by weight, Cermet (Cermet) 2 to 8 parts by weight , 3 to 8 parts by weight of mica, 3 to 7 parts by weight of Sepiolite, and 1.5 to 3 parts by weight of dry pigment are mixed. The constituents of these compositions are all composed of powder.

In addition, the solidifying composition for a deep layer of the present invention, based on 100 parts by weight of blast furnace slag, 18 to 26 parts by weight of fly ash, 3 to 10 parts by weight of lime, 2 to 6 parts by weight of calcium aluminate (CaAl2O4 or Ca3Al2O6), montmorillonite (Montmorillonite) 1.2 to 2.2 parts by weight, Kaolinite 2 to 5 parts by weight, Talc 1.3 to 2.8 parts by weight, Perlite 12 to 26 parts by weight, Cermet 4 to 6 parts by weight, Mica It is characterized in that it can be mixed in a configuration of 4 to 6 parts by weight, 4 to 9 parts by weight of Sepiolite, and 2 to 3.5 parts by weight of dry pigment. This is explained in more detail as follows.

Blast furnace slag, fly ash, and lime generate a pozzolanic reaction as described below. When the pozzolanic reaction is described, when a mud or loose ground with a moisture content of 20% or more, particularly 25% or more is solidified by stirring with a solidifying agent, the pozzolanic reaction proceeds and the strength of the earth particles is enhanced. This is commonly referred to as the intensity development process. This strength development process, that is, the pozzolanic reaction, is generated by the aforementioned blast furnace slag, fly ash and calcium hydroxide by lime. Therefore, the composition according to the embodiment of the present invention can increase the strength of earth particles by blast furnace slag, fly ash, and lime.

Here, the blast furnace slag and fly ash described above contain a large amount of silicon dioxide (SiO2) and aluminum oxide (Al2O3), which are pozzolanic reactants, and also a large amount of sulfur trioxide (SO3), which effectively produces ethrinzite in the hydration reaction. Because it contains, it can maintain stable strength of the ground by continuously promoting hydration reaction or pozzolanic reaction to strengthen the bearing capacity of the soft ground .

Since blast furnace slag is a main component of the composition according to the embodiment of the present invention, it is composed of the largest amount compared to other components, but is preferably composed of about 35% to 63% by weight based on 100% by weight of the total composition. If the blast furnace slag is composed of less than 35% by weight from 100% by weight of the total composition, the above-described hydration reaction or pozzolanic reaction is not sufficient, resulting in lowering of early strength, as well as lowering endurance, and exceeding 63% by weight. If configured, the hydration reaction or the promoting effect of the pozzolanic reaction is delayed, resulting in a decrease in early intensity expression. Blast furnace slag is preferably composed of about 42 to 48% by weight from 100% by weight of the total composition when considering the above-described endurance and early strength expression, and manufacturing cost. When configured in this way, not only can endurance within a desired optimal range and early intensity expression within a desired optimal period be achieved, but also an optimum cost-performance ratio can be provided.

Fly ash is actually used as a binder. Alumina (AL2O3) and silica (SiO2) are the main components, and the particles are formed in a round, hollow sphere, reacting with calcium hydroxide to be described later to generate a pozzolanic reaction, improving slump and improving ground stability. It expresses the necessary performance required, strengthens long-term strength, and stabilizes the soft ground. It is preferable that such fly ash is mixed in an amount of about 18 to 24 parts by weight based on 100 parts by weight of blast furnace slag. When fly ash is mixed in an amount of less than 18 parts by weight based on 100 parts by weight of blast furnace slag, not only the activation of the pozzolanic reaction decreases due to lack of silica, but also the long-term strength decreases, and in addition, the stabilization period of the soft ground is prolonged. On the contrary, if fly ash is mixed in excess of 24 parts by weight based on 100 parts by weight of blast furnace slag, the effect of promoting the aforementioned hydration reaction or pozzolanic reaction is delayed due to excessive biter action, and the required performance required for the stability of the soft ground is rather lowered.

The fly ash is most preferably mixed in an amount of 21 to 22 parts by weight based on 100 parts by weight of blast furnace slag in consideration of the unit cost and required performance of the composition. When mixed in this way, the optimum cost-performance ratio, required performance, and desired long-term strength can be achieved.

Lime is preferably composed of quicklime. Lime affects the promotion and activation of the pozzolanic reaction to improve the physical properties of the composition, and by generating calcium carbonate for a long time, the above-described blast furnace slag and fly are used to coagulate and solidify particulates through the reaction of calcium aluminate and calcium carbonate described below. Mixed with ash. When lime is mixed with blast furnace slag and fly ash and mixed with water-bearing earth particles, it hydrates by water and turns into calcium hydroxide to solidify the water, and to produce silicate or aluminate with hydraulic properties. In addition to generating a pozzolanic reaction, a large amount of CSH gel (calcium silicate hydrate gel) is generated to reduce the moisture content of the soft ground. Such

Lime is preferably mixed with 2 to 8 parts by weight based on 100 parts by weight of blast furnace slag. If lime is mixed with less than 2 parts by weight based on 100 parts by weight of blast furnace slag, not only does it not induce a smooth pozzolan reaction due to insufficient content, and does not sufficiently aggregate blast furnace slag and fly ash. It exerts an excessive influence and prevents sufficient solidification and prolongs the solidification time. Most preferably, the lime is mixed in 6 to 7 parts by weight. When mixed in this way, it can provide an optimum cohesive ability compared to the mixing amount.

In conclusion, the above-described blast furnace slag, fly ash and lime play a major role in generating a pozzolanic reaction when agitating with soft ground.

On the other hand, calcium aluminate has a large role of generating agglomeration, and not only provides rapid setting or expandability to the composition while reacting with the above-described calcium carbonate, but also promotes hardening and solidification of soft ground by coagulating and solidifying earth particles. Strengthens and stabilizes the strength of soft ground. Calcium aluminate may be a calcium oxide source and an alumina source, respectively, but it is preferable to use a material containing calcium aluminate. Calcium aluminate is preferably mixed in an amount of about 1 to 5 parts by weight based on 100 parts by weight of blast furnace slag. When calcium aluminate is mixed in an amount of less than 1 part by weight based on 100 parts by weight of blast furnace slag, a desired cohesive and solidifying action cannot be expected, and when it exceeds 5 parts by weight, not only the manufacturing cost is imagined, but the stabilization is rather hindered. Calcium aluminate was found to be the most economical to mix 3 to 35 parts by weight based on 100 parts by weight of blast furnace slag.

Montmorillonite has a great role in imparting adhesiveness and is a monoclinic mineral and is a kind of clay mineral. Montmorillonite has a hardness of 1-15 and a specific gravity of 2-15. Montmorillonite not only has the property of increasing the volume by 7 to 10 times by absorbing moisture, but also has high ion exchange properties, and when reacting with moisture, adhesiveness occurs to strengthen and stabilize the strength of the soft ground. Montmorillonite is preferably mixed in an amount of 0.7 to 18 parts by weight based on 100 parts by weight of blast furnace slag. When montmonilonite is mixed with less than 0.7 parts by weight based on 100 parts by weight of blast furnace slag, the moisture absorption effect is hardly seen, and when it is mixed in excess of 18 parts by weight, it causes an obstacle to the pozzolanic reaction or hydration reaction of the composition. . When montmonillonite is mixed in an amount of 0.9 to 12 parts by weight based on 100 parts by weight of blast furnace slag, it was confirmed that it exhibits the best adhesiveness compared to the amount of mixture.

Kaolinite plays a large role in reinforcing the bonding strength, and as it contains kaolin as its main component, it has excellent water absorption and viscosity, so it is widely used as a material for ceramics. Kaolinite is relatively fine grain and has a hardness of 2 to 25, so when the composition according to an embodiment of the present invention is stirred with the soft ground, it penetrates and solidifies between the constituents of the composition, further strengthening the bearing capacity of the soft ground. Kaolinite is preferably mixed in an amount of about 1 to 3 parts by weight based on 100 parts by weight of blast furnace slag. If kaolinite is mixed in less than 1 part by weight based on 100 parts by weight of blast furnace slag, it cannot substantially strengthen the bearing capacity of the soft ground, and if it is mixed in more than 3 parts by weight, economic efficiency is poor. It was confirmed that even if only about 18 to 23 parts by weight of kaolinite is mixed with respect to 100 parts by weight of blast furnace slag, it has a satisfactory effect on the bearing capacity of the soft ground.

Talc is a mineral known as talc and is known as the softest mineral. Talc is also used for cosmetics when the purity is high when powdered, but when the purity is low, talc is also added for reinforcing the strength of roofing materials or ceramics due to its strong absorption and adhesion properties. Talc acts as a water reducing agent among the components of the composition according to the embodiment of the present invention due to the above-described properties. Accordingly, talc smoothly absorbs moisture from the soft ground, shortening the curing time, and stabilizes the soft ground. Talc is preferably mixed in an amount of 1 to 25 parts by weight based on 100 parts by weight of blast furnace slag. When talc is mixed in less than 1 part by weight against 100 parts by weight of blast furnace slag, the curing time cannot be greatly shortened, and when it exceeds 25 parts by weight, the unit cost of the composition is increased. When talc is mixed in an amount of 15 to 2 parts by weight based on 100 parts by weight of blast furnace slag, the curing time is shortened within a desired range.

Perlite plays a large role as an absorbent, and it is preferable to apply general expanded perlite. This perlite is an artificially manufactured porous lightweight soil that absorbs moisture or provides breathability through pores, and provides light weight.

It is preferable that 9 to 23 parts by weight of perlite is mixed with respect to 100 parts by weight of blast furnace slag. When perlite is mixed in less than 9 parts by weight based on 100 parts by weight of blast furnace slag, it can hardly provide light weight, absorbency, and breathability, and when it exceeds 23 parts by weight, it provides excessive pores to lower the bearing capacity of the soft ground. Even if only 18 parts by weight to 20 parts by weight were mixed with respect to 100 parts by weight of blast furnace slag, the perlite satisfies the range of the settling amount of the soft ground.

The cermet is to make the structure of the soft ground solidified in detail. Cermet is a heat-resistant material made of metal and ceramics made by powder metallurgy, and has hardness, oxidation resistance and abrasion resistance, which are characteristics of ceramics, and toughness and mechanical strength, which are properties of metal.

Cermet is made into powder by thermal spraying and is used as a heat-resistant or wear-resistant coating material in various fields. It is preferable that the cermet is composed of a mixture of ceramics with at least one of nickel, chromium, and molybdenum. Such a cermet strengthens the long-term strength of the soft ground by solidifying it with other components when the soft ground is solidified by the above-described characteristics. It is preferable that 2 to 8 parts by weight of cermet are mixed with respect to 100 parts by weight of blast furnace slag.

When the cermet is mixed with less than 2 parts by weight based on 100 parts by weight of the blast furnace slag, the aforementioned strength enhancement cannot be expected due to insufficient mixing amount, and when it is mixed with more than 8 parts by weight, the weight of the composition is increased due to the aforementioned metal components. Cermet showed the most efficient strength performance compared to the mixing amount when it was mixed in 3.5 to 5 parts by weight based on 100 parts by weight of blast furnace slag.

Mica plays a large role in improving the physical properties by reinforcing the bonding strength during solidification, and as a layered silicate mineral with a hardness of 25 to 4, it has the characteristics of improving the bonding strength of the crystal phase. Finely divided mica is also used in lightweight construction materials or gypsum cement boards due to the above-described characteristics. Mica strengthens the bonding strength of the soft ground and activates the strength of the soft ground. Mica is preferably mixed in an amount of 3 to 8 parts by weight based on 100 parts by weight of blast furnace slag. When mica is mixed in less than 3 parts by weight based on 100 parts by weight of blast furnace slag, the bonding strength cannot be strengthened, and when it is mixed in excess of 8 parts by weight, it may rather interfere with the bonding. When mica is mixed in 6 to 7 parts by weight, it exhibited a desired range of endurance without disturbing the bonding force.

Sepiolite plays a large role in improving fast setting properties, and is a clay mineral having a fibrous shape and is fired at high temperature to be used as a drying agent or as an adsorbent. Sepiolite controls the viscosity of soft ground by drying and adsorption properties.

Sepiolite is preferably mixed in an amount of 3 to 7 parts by weight based on 100 parts by weight of blast furnace slag. Sepiolite, when mixed in less than 3 parts by weight with respect to 100 parts by weight of blast furnace slag, does not act as a viscosity agent due to insufficient content, and when mixed in excess of 7 parts by weight, it lowers the bonding strength of the composition and the soft ground. Sepiolite was the most efficient when mixed in 4 to 5 parts by weight based on 100 parts by weight of blast furnace slag.

The dry pigment is a color developing agent, and is a component that changes the color of the soft ground by being mixed with the composition according to the embodiment of the present invention.

The dry pigment may be composed of any one of yellow iron oxide and chromium oxide mainly used in inorganic pigments. Alternatively, the dry pigment may consist of green mud bentonite. Dry pigments discolor the soft ground through the intrinsic color of the components. It is preferable that the dry pigment is mixed with 1.5 to 3 parts by weight based on 100 parts by weight of blast furnace slag.

If the dry pigment is mixed with less than 1.5 parts by weight based on 100 parts by weight of the blast furnace slag, the color cannot be expressed, and if it is mixed in excess of 3 parts by weight, economical efficiency is deteriorated. When the dry pigment was mixed in an amount of 2.2 to 2.5 parts by weight, it exhibited the most attractive color compared to the mixing ratio.

On the other hand, the composition according to the embodiment of the present invention may be further mixed with ceramic fibers to enhance the strength of the soft ground. Ceramic fiber is a material obtained by converting ceramic to fiber and is recently used to strengthen the strength of ceramics. Ceramic fiber is mixed in the soil of the soft ground to reinforce the strength of the solidified soil by acting like a reinforcing bar. It is preferable that the ceramic fiber has an average diameter of 1 to 20 μm and an aspect ratio of 6 to 7 so that it is easy to mix the other components of the composition with the dredged soil and exhibit a desired adhesion. Ceramic fiber is preferably applied to the soft ground on which roads or bridges are installed in consideration of the biodegradation period, and not to the soft ground on which buildings, etc. are installed.

The ceramic fiber is preferably mixed in an amount of 3 to 6 parts by weight based on 100 parts by weight of blast furnace slag. If the ceramic fiber is mixed with less than 3 parts by weight based on 100 parts by weight of blast furnace slag, the strength of the soil cannot be enhanced, and when it is mixed in excess of 6 parts by weight, the soil is excessively strengthened more than necessary. It was confirmed that the ceramic fiber has the best efficiency compared to the mixing ratio when 4 to 5 parts by weight are mixed with respect to 100 parts by weight of blast furnace slag.

In addition, the composition according to the embodiment of the present invention may be further mixed with zirconium oxide for long-term stabilization of the soft ground against freezing and thawing. Zirconium oxide is a colorless powder, which is monoclinic at low temperatures (below 1,000°C) and tetragonal at high temperatures. Zirconium oxide has high corrosion resistance and low coefficient of thermal expansion, so it can withstand rapid temperature changes, so it is also used as a refractory material, and has the highest strength among ceramic materials. Zirconium oxide is stabilized for a long time while increasing the resistance to freezing and thawing of soft ground by this characteristic. Zirconium oxide is preferably mixed in an amount of 2 to 4 parts by weight based on 100 parts by weight of blast furnace slag. When zirconium oxide is mixed in less than 2 parts by weight based on 100 parts by weight of blast furnace slag, it cannot exhibit its properties, and when it is mixed in excess of 4 parts by weight, it causes an increase in material cost compared to the effect.

When zirconium oxide was mixed in an amount of 3 to 3.5 parts by weight based on 100 parts by weight of blast furnace slag, it showed the best performance compared to the mixing amount.

In addition, when the composition according to the embodiment of the present invention is stirred with the dredged soil with the soft ground, paracel may be additionally mixed to improve the moisture absorption rate of the dredged soil. Paracell is a component commonly used in a building interior or exterior material for insulation, and has excellent moisture absorption due to properties such as loess, white clay, or diatomaceous earth. Paracell is preferably mixed in an amount of 0.5 to 3 parts by weight based on 100 parts by weight of blast furnace slag. Paracell has poor moisture absorption when mixed with less than 0.5 parts by weight based on 100 parts by weight of blast furnace slag, and has excellent moisture absorption when mixed with more than 3 parts by weight, but excessively weakens the viscosity of the soft ground. Paracel exhibited an optimum moisture absorption rate of about 3 to 5% compared to the mixing ratio when mixed in an amount of 1.2 to 2.3 parts by weight based on 100 parts by weight of blast furnace slag.

On the other hand, the composition according to an embodiment of the present invention may be additionally mixed with a soil modifier to help the growth of plants when the soft ground is used as an arable land or a landscaping space of a building. The soil modifier is calcined calcium obtained by recycling of shells and mixed in 5 to 9 parts by weight per 100 parts by weight of blast furnace slag, and siliceous mineral obtained by pozzolan volcanic soil and mixed in 4 to 10 parts by weight per 100 parts by weight of blast furnace slag It consists of at least one of.

When calcined calcium is mixed with less than 5 parts by weight based on 100 parts by weight of blast furnace slag, the effect of improving soil quality is insufficient, and when it is mixed in excess of 9 parts by weight, it inhibits the coagulation required for solidification of dredged soil. When calcined calcium is mixed in an amount of 6 to 7 parts by weight based on 100 parts by weight of blast furnace slag, it has an optimal effect compared to the mixing ratio.

When the siliceous mineral is mixed in less than 4 parts by weight based on 100 parts by weight of the blast furnace slag, the effect of improving soil quality is insufficient, and when it is mixed in more than 10 parts by weight, it inhibits the coagulation property in the same manner as the above-described calcined calcium. The siliceous mineral is preferably mixed in an amount of 7 to 8 parts by weight based on 100 parts by weight of blast furnace slag in consideration of the mixing amount and mixing ratio of the above-described calcined calcium.

On the other hand, based on the conventional solidifying agent sold in the past to prepare the solidifying agent of the comparative example and a test piece thereof, and based on the composition according to the embodiment of the present invention described above, the solidifying agent for the experimental examples and examples and thereby After preparing the test pieces, the experimental results comparing their characteristics will be described with reference to the tables of FIGS. 1 to 4 attached thereto. Prior to the description, the solidifying agent is usually mixed with 119 kg, corresponding to a ratio of about 0.7%, to 1,700 kg of dredged soil generated from the soft ground of 1㎥. Therefore, Comparative Examples, Experimental Examples and Examples each prepared a solidifying agent so that each individual total weight was approximately 120 kg, and then stirred with a high water content soil having a moisture content of about 45% to prepare a test specimen of agitated soil. That is, in Comparative Examples, Experimental Examples, and Examples 1 to 10, each of the test pieces was made by a solidifying agent prepared at 120 kg. At this time, the blast furnace slag was based on 100g for convenience of improvement. These test pieces were tested by the method of KS F2314 and showed the following results.

Here, in the above-described experimental examples and examples, a test piece was prepared by omitting the pigment and the soil modifier described above. The above-described pigments and soil modifiers are omitted because they do not significantly affect the solidification performance.

<Comparative Example>

Comparative Example is prepared by mixing blast furnace slag, fly ash, cement, aluminum sulfate and calcium sulfate as shown in FIG. 1 so as to have the same properties as a conventional solidifying agent, but based on the results of analyzing the contents of these components, the mixing ratio was Calculate and mix the two components. In more detail, when 120 kg of a conventional solidifying agent was analyzed, blast furnace slag was 35 wt%, fly ash 28 wt%, cement 35 wt%, aluminum sulfate 9 wt% and calcium sulfate 9 in 100 wt% of a total of 120 kg. It was analyzed that the weight% was mixed, and based on this, 80 parts by weight of fly ash, 100 parts by weight of cement, 26 parts by weight of aluminum sulfate and 26 parts by weight of calcium sulfate were mixed with 100 parts by weight of blast furnace slag and 100 parts by weight of such blast furnace slag. (Note: In the case of other commercially available solidifying agents, there are many mixtures of blast furnace slag at 30-80% by weight) And, only 120 kg of these mixtures were separated and stirred with 1,700 kg of the above-described high water soil to prepare a test piece.

This comparative example satisfies the compressive strength, bearing strength, and settling amount shown in FIG. 3 according to a commercially available solidifying agent, and as shown, the compressive strength of 28 days was 16 MPa, and the bearing strength and settling amount were reference values (bearing strength standard : 15 tons/settlement standard: 25mm) was exceeded.

<Experimental Example>

In the experimental example, a solidifying agent was prepared by excluding some of the constituents of Examples 1 to 5 which will affect the strength or condensation of the soft ground, and then a test piece was made using it. Accordingly, the experimental example is a mixture of 21 parts by weight of fly ash, 7 parts by weight of lime, 3.5 parts by weight of calcium aluminate, 2 parts by weight of talc and 20 parts by weight of perlite per 100 parts by weight of blast furnace slag as shown in FIG. A mixture of 120 kg of the solidifying agent mixture was stirred with a high water content as described above to prepare a test piece of agitated soil for testing.

In this experimental example , as shown in FIG . 3 , the compressive strength of 28 days is 5.0Mpa, the bearing capacity is 50 tons, and the settlement amount is 20mm. In the experimental example, the amount of blast furnace slag, fly ash, lime, and calcium aluminate was sufficient, but as the cement of the comparative example was omitted, a number of components mixed in Examples 1 to 5 to compensate for this were omitted. And the settling amount is considered to be worse than that of the comparative example.

<Example 1>

Example 1 is based on 100 parts by weight of blast furnace slag based on the range of the above-described weight percent, as shown in Figure 1, 16 parts by weight fly ash, 1 part by weight lime, 0.7 parts by weight calcium aluminate, 0.3 parts by weight A mixture of 120 kg of a solidifying agent mixture in which montmorillonite, 0.8 parts by weight kaolinite, 0.5 parts by weight talc, 7 parts by weight ferrite, 0.8 parts by weight cermet, 1 part by weight mica and 1.5 parts by weight sepiolite are mixed with a high water content as described above Agitated with soil to prepare a test piece of stirring soil for testing.

In Example 1, as shown in FIG. 3, the compressive strength of 28 days is 1.5Mpa, the bearing strength is 22.2ton, and the settlement amount is 5.1mm, and the measured value is not good compared to the comparative example. In Example 1, instead of omitting the cement, components such as lime and calcium aluminate or sepiolite supplementing it were mixed, but the content was insufficient due to the slight mixing of the component ratio, that is, the compressive strength, bearing capacity, and settlement amount It is considered to be less than this comparative example.

<Example 2>

Example 2 is based on 100 parts by weight of blast furnace slag based on the range of the above-described weight percent, as shown in Figure 1 18 parts by weight fly ash, 6 parts by weight lime, 2 parts by weight calcium aluminate, 1 part by weight A mixture of 120 kg of a solidifying agent mixture in which montmorillonite, 2 parts by weight of kaolinite, 1 part by weight of talc, 18 parts by weight of ferrite, 2 parts by weight of cermet, 4 parts by weight of mica and 3 parts by weight of sepiolite are mixed, has a high water content as described above. Agitated with soil to prepare a test piece of stirring soil for testing.

In Example 2, as shown in FIG. 3, the compressive strength on 28 days was 1.5Mpa, the bearing strength was 22.6ton, and the settlement amount was 4.8mm, and the measured value was somewhat poor compared to the comparative example. In Example 2, instead of omitting the cement, components such as lime and calcium aluminate to sepiolite supplementing it were mixed more than in Example 1, but due to lack of content due to the insufficient component ratio of these, compressive strength and endurance and It is considered that the amount of settlement is somewhat less than that of the comparative example.

<Example 3>

Example 3 is based on 100 parts by weight of blast furnace slag based on the range of the above-described weight percent, as shown in Figure 1 21 parts by weight fly ash, 7 parts by weight lime, 3.5 parts by weight calcium aluminate, 1.2 parts by weight A mixture of 120 kg of a solidifying agent mixture in which montmorillonite, 2 parts by weight of kaolinite, 2 parts by weight of talc, 20 parts by weight of ferrite, 4 parts by weight of cermet, 6 parts by weight of mica, and 4 parts by weight of sepiolite are mixed with a high water content as described above Agitated with soil to prepare a test piece of stirring soil for testing.

In Example 3, as shown in FIG. 3, the compressive strength of 28 days was 2.1 Mpa, the bearing capacity was 23.5 tons, and the settling amount was 3.4 mm, which was superior to the comparative example. Example 3 is considered to exhibit better results than the comparative example as the components of components such as lime and calcium aluminate to sepiolite are mixed more than that of Example 2.

<Example 4>

Example 4, based on 100 parts by weight of blast furnace slag based on the range of the above-described weight percent, as shown in Figure 1, 24 parts by weight fly ash, 8 parts by weight lime, 5 parts by weight calcium aluminate, 1.2 parts by weight A mixture of 120 kg of a solidifying agent mixture in which montmorillonite, 3 parts by weight of kaolinite, 2.5 parts by weight of talc, 23 parts by weight of ferrite, 6 parts by weight of cermet, 8 parts by weight of mica and 5 parts by weight of sepiolite are mixed, has a high water content as described above. Agitated with soil to prepare a test piece of stirring soil for testing.

As shown in FIG. 3, Example 4 had a compressive strength of 2.3 Mpa on 28 days, a bearing capacity of 23.7 tons, and a settling amount of 3.2 mm, which was superior to that of Example 3. It is believed that Example 4 exhibited better results than Example 3 as the content of all components except for blast furnace slag was increased compared to Example 3.

<Example 5>

Example 5, based on 100 parts by weight of blast furnace slag based on the range of the above-described weight %, 26 parts by weight of fly ash, 12 parts by weight of lime, 7 parts by weight of calcium aluminate, 3 parts by weight as shown in FIG. Montmorillonite, 3.5 parts by weight kaolinite, 4 parts by weight talc, 25 parts by weight ferrite, 9 parts by weight cermet, 11 parts by weight mica and 8 parts by weight

A mixture of 120 kg of the solidifying agent mixture in which the piolite was mixed was stirred with the high-moisture soil as described above to prepare a test piece of agitated soil for testing.

As shown in FIG. 3, Example 5 had a compressive strength of 2.5Mpa on 28 days, a bearing capacity of 23.9ton, and a settling amount of 3.1mm, which was significantly superior to that of Example 3. It is believed that Example 5 exhibited superior results than Example 3 as the contents of all components except for blast furnace slag were significantly increased than those of Examples 3 and 4.

<Example 6>

Examples 6 to 10 differ from Examples 1 to 5 in that ceramic fiber, zirconium oxide, and paracell were additionally mixed with the compositions of Examples 1 to 5 described above. In Example 6, the above-described components were added to the composition of Example 1, but 2 parts by weight of ceramic fiber, 1 part by weight of zirconium oxide, and 0.3 parts by weight based on 100 parts by weight of the blast furnace slag of Example 1, as shown in FIG. A mixture of 120 kg of the solidifying agent mixture in which the para-cell was mixed was stirred with the high-moisture soil as described above to prepare an agitated soil test piece for testing.

As shown in FIG. 3, Example 6 has a compressive strength of 1.9Mpa on 28 days, a bearing capacity of 22.5 tons, and a settling amount of 5.4mm, which is better than Example 1, but less than Examples 1 to 5. It is considered that Example 6 showed insufficient results due to insufficient amounts of lime to sepiolite as described in Example 5.

<Example 7>

In Example 7, the above-described components were added to the composition of Example 2, but as shown in FIG. 2, 3 parts by weight of ceramic fiber, 3 parts by weight of zirconium oxide, and 1 part by weight of 100 parts by weight of the blast furnace slag of Example 2 were added. A mixture of 120 kg of the solidifying agent mixture in which the para-cell was mixed was stirred with the high-moisture soil as described above to prepare an agitated soil test piece for testing.

As shown in FIG. 3, Example 7 has a compressive strength of 2.1 MPa, a bearing capacity of 23.7 tons, and a settling amount of 4.8 mm, as shown in FIG. 3, which is superior to Example 2, but inferior to Examples 3 to 5. Example 6, as described in Example 2, was considered to have a poor result due to a somewhat insufficient content of calcium aluminate to sepiolite.

<Example 8>

In Example 8, the above-described components were added to the composition of Example 3, but 5 parts by weight of ceramic fiber, 4 parts by weight of zirconium oxide, and 2 parts by weight of 100 parts by weight of the blast furnace slag of Example 3 were added, as shown in FIG. A mixture of 120 kg of the solidifying agent mixture in which the para-cell was mixed was stirred with the high-moisture soil as described above to prepare an agitated soil test piece for testing.

In Example 8, as shown in FIG. 3, the compressive strength of 28 days was 2.5Mpa, the bearing strength was 23.9ton, and the settling amount was 3.1mm, showing better results than Example 3. Example 8 is considered to exhibit more excellent results than Example 3 as the above-described components are added to Example 3, which is superior to Comparative Example.

<Example 9>

In Example 9, the above-described components were added to the composition of Example 4, but as shown in FIG. 2, 7 parts by weight of ceramic fiber, 4 parts by weight of zirconium oxide, and 2 parts by weight of 100 parts by weight of the blast furnace slag of Example 4 were added. A mixture of 120 kg of the solidifying agent mixture in which the para-cell was mixed was stirred with the high-moisture soil as described above to prepare an agitated soil test piece for testing.

As shown in FIG. 3, Example 9 had a compressive strength of 2.8Mpa on 28 days, a bearing capacity of 24.2 tons, and a settling amount of 2.9mm, which was superior to that of Example 4. Example 9 is considered to exhibit better results than Example 8 as the above-described components are added to Example 4, which is superior to Example 3.

<Example 10>

In Example 10, the above-described components were added to the composition of Example 5, but 8 parts by weight of ceramic fiber, 5 parts by weight of zirconium oxide, and 4 parts by weight of 100 parts by weight of the blast furnace slag of Example 5 were added, as shown in FIG. A mixture of 120 kg of the solidifying agent mixture in which the para-cell was mixed was stirred with the high-moisture soil as described above to prepare an agitated soil test piece for testing.

As shown in FIG. 3, Example 10 had a compressive strength of 2.8 MPa on 28 days, a bearing capacity of 24.6 tons, and a settling amount of 2.6 mm, showing better results than Example 9. Example 9 is considered to exhibit better results than Example 9 as the blending ratio of the added components increased compared to Example 9.

From the above test results, considering the desired performance and economy, the results of Examples 3 and 8 were the most excellent among Examples 1 to 10, and the ceramic fiber, zirconium oxide, and paracell were not additionally mixed. In the case of Examples 1 to 5, it was found that the results of Example 3 were the best. In addition, Examples 6 to 10 in which the above-described additional ingredients were mixed in Examples 1 to 5 showed more improved results than Examples 1 to 5 by the added ingredients.

Therefore, it was found that an additional component composed of ceramic fiber, zirconium oxide, and paracell was helpful in improving the effect.

On the other hand, as a result of checking the difference in weight by filling the aforementioned Comparative Examples and Experimental Examples and Examples 1 to 5 in a 20-liter bag, as shown in FIG. 1, the Comparative Example was confirmed to be the heaviest compared to other It was confirmed as bad (X), and Experimental Examples and Example 3 in which 20 parts by weight or more of perlite were mixed were found to have very good light weight (◎) compared to the others, and Examples 1 and 2 having less than 20 parts by weight were Compared to other things, it was confirmed that the light weight was moderate (△) or the light weight was good (○), and in the case of Examples 4 and 5, although the perlite was mixed with 20 parts by weight or more, the light weight was not very good (◎) but the light weight was normal. It was confirmed as (△) or good light weight (○), which is believed to have resulted in an increase in the mixing ratio of other components having a heavy specific gravity excluding perlite compared to the above-described examples.

On the other hand, as described above, the experimental results in the case of mixing the above-described pigment and soil conditioner with the composition according to Example 3, which shows the most economical and excellent performance, are as shown in FIG. 4A. As shown in Fig. 4A, in Example 11, 1 part by weight of a dry pigment composed of green mud bentonite, 4 parts by weight of calcined calcium, and 2.5 parts by weight of siliceous mineral were mixed with respect to 100 parts by weight of blast furnace slag. 2.3 parts by weight of dry pigment consisting of green mud bentonite, 6.5 parts by weight of calcined calcium, and 7 parts by weight of siliceous minerals were mixed with respect to 100 parts by weight of slag. In Example 13, 4 parts by weight of a dry pigment composed of green mud bentonite, 11 parts by weight of calcined calcium, and 9 parts by weight of siliceous minerals were mixed with respect to 100 parts by weight of blast furnace slag. When the color of the test piece was visually checked after 28 days elapsed after mixing Examples 11 to 13 with the above-described high water content, in the case of Example 11, the desired color was not expressed due to insufficient content of the dry pigment. , In the case of Examples 12 and 13, the desired color was expressed. However, since the color was expressed in Example 12 in terms of the mixing amount of the dry pigment, it was confirmed that Example 12 was the most economical compared to the mixing amount. In addition, the compositions of Examples 11 to 13 were mixed with the above-described high-moisture soil, dried, finely pulverized, put in a flower pot, planted the fruits of the Cheonnyanggeum tree, watered, and then placed in a sunny place at a maximum of 22 degrees in the daytime. The date of germination of the sprout was confirmed. As a result, in Example 11, sprouts germinated after 14 days, and Examples 12 and 13 were germinated after 11 days and 10 days, respectively. In the case of Example 11, the content of calcined calcium and siliceous minerals was less than in Examples 12 and 13, and it was considered that the germination was delayed due to poor nutritional supply, and in the case of Example 12, the germination date was significantly different from Example 13. There was no. Therefore, it was found that Example 12 was more excellent than Example 13 in cost-effectiveness ratio to the mixing amount of the soil conditioner.

On the other hand, as described above, the experimental results in the case of mixing the above-described pigment and soil conditioner with the composition according to Example 3, which shows the most economical and excellent performance, are as shown in FIG. 4B.

As shown in FIG. 4B, in Example 14, 2 parts by weight of a dry pigment composed of green mud bentonite, 6 parts by weight of calcined calcium, and 1.2 parts by weight of siliceous mineral were mixed with respect to 100 parts by weight of blast furnace slag.

In Example 15, 5 parts by weight of a dry pigment composed of green mud bentonite, 8.2 parts by weight of calcined calcium, and 7.5 parts by weight of siliceous minerals were mixed with respect to 100 parts by weight of blast furnace slag.

In Example 16, 8 parts by weight of a dry pigment composed of green mud bentonite, 23 parts by weight of calcined calcium, and 8 parts by weight of siliceous minerals were mixed with respect to 100 parts by weight of blast furnace slag.

When the color of the test piece was visually checked after 28 days elapsed after mixing these Examples 14 to 16 with the above-described high-moisture soil, in the case of Example 14, the desired color was not expressed due to insufficient content of the dry pigment. , In the case of Examples 15 and 16, the desired color was expressed. However, as the color was expressed in Example 15 in terms of the mixing amount of the dry pigment, it was confirmed that Example 15 was the most economical compared to the mixing amount. In addition, the compositions of Examples 14 to 16 were mixed with the above-described high-moisture soil, dried, finely pulverized, put in a flower pot, planted the fruits of the Cheonnyanggeum tree, watered, and then placed in a sunny place at a maximum of 22 degrees in the daytime. The date of germination of the sprout was confirmed. As a result, in Example 14, sprouts germinated after 11 days, and Examples 15 and 16 were germinated after 8 days and 7 days, respectively. In the case of Example 14, the content of calcined calcium and siliceous minerals was insufficient than in Examples 15 and 16, and thus, it was considered that the germination was delayed due to poor nutritional supply, and in the case of Example 15, the germination date was significantly different from Example 16. There was no. Accordingly, it was found that Example 15 was more excellent than Example 16 in cost-effectiveness ratio to the mixing amount of the soil conditioner.

On the other hand, the manufacturing method of the solidifying agent composition according to the embodiment of the present invention is a manufacturing method for preparing the solidifying agent of Example 12 described above. That is, the manufacturing method according to the embodiment of the present invention is a method for preparing the solidifying agent of Example 12, which is formed by mixing a dry pigment composed of green mud bentonite and calcined calcium and siliceous minerals in Example 3 described above. The calcined calcium of this manufacturing method is prepared by processing the shell, and the siliceous mineral is prepared by processing the pozzolanic volcanic soil. Prior to the description, the green mud bentonite described above is known to have the best quality excavated from the old age of Korea, and it is known that the pozzolanic volcanic soil described later for producing siliceous minerals is best excavated from Ulsan, Korea. However, these domestic green mud bentonite and pozzolanic volcanic soils lack manufacturing companies and manufacturing facilities, and in particular, green mud bentonite is not easily supplied in powder form as it is not easy to manufacture powder due to excessive moisture content. Actually. In addition, the supply and demand of powdered calcined calcium using shells is not smooth in the case of these powders as not only the lack of companies handling them, but also the method of processing the shells into calcined calcium is not well known. Accordingly, the applicant of the present invention developed a method of manufacturing these into powder so that the materials can be supplied smoothly by themselves and applied to the present invention. In particular, the method of manufacturing these into powder discloses a method of supplying the fine particle powder by itself, since the powder can be manufactured close to the fine dust. This manufacturing method is as described later.

A manufacturing method according to an embodiment of the present invention includes a green mud bentonite powder manufacturing step of preparing the green mud bentonite as a dried powder; Pozzolanic volcanic soil processing step of obtaining powdered siliceous minerals through a processing process of heating and pulverizing the pozzolanic volcanic soil described above; Shell processing step of obtaining powdered calcined calcium through the processing step of heating and grinding the shells described above; A wind pressure providing step of providing a wind pressure so that the powders consisting of the aforementioned grum mud bentonite, siliceous minerals, and calcined calcium are scattered and collected at a set distance, respectively, in an isolated state; And a mixture preparation step of preparing a mixture by mixing powdered green mud bentonite, siliceous mineral, and calcined calcium collected in the above-described wind pressure providing step with the components of Example 3 described above at a set mixing ratio.

The above-described green mud bentonite powder manufacturing step includes a heating step of dehydrating moisture by heating green mud bentonite in a lump form containing moisture at 150°C to 220°C for 12 to 24 hours; A first pulverizing step of pulverizing the green mud bentonite in the form of a lump that has been dehydrated in the agitation pulverizing unit as shown in FIG. The second pulverization step of pulverizing the green mud bentonite in the form of a powder by re-injecting the granular green mud bentonite into the agitation pulverization unit described above: and a first cylindrical sieve of 80 mesh as shown in FIG. Green mud bentonite having a size smaller than 300 mesh by sequentially passing through the first to third cylindrical sieves by putting them into the triple-mesh permeable section consisting of a 150 mesh second cylindrical sieve and a 300 mesh third cylindrical sieve to form a slope. And a fine powder extraction step of extracting only fine powder.

Here, in the above-described drying step, the green mud bentonite in the mud state is heated through the electric vacuum drying unit having the structure as shown in FIG. 7. At this time, as shown, when the sealing door of the vacuum drying unit is opened by operation of the sealing handle, the green mud bentonite is stored in the storage container and embedded in the vacuum drying unit. The vacuum drying unit heats the green mud bentonite with a heating heater installed inside to make the green mud bentonite boil as if bubbling, so that the internal air bubbles rise, but the internal air is evacuated with a vacuum pump so that the air bubbles rise easily. Let it. Therefore, the green mud bentonite in a muddy state is smoothly dried as moisture is discharged in a vapor state along with air bubbles.

As shown in FIG. 5, the agitation and pulverization unit includes a case-type body having a case lid and a crushing blade provided on the above-described case lid and rotating at 320 to 750 rpm per minute by a crushing motor. The grinding blade is rotated for about 1 to 2 hours at about 350 rpm when the dried lump-shaped green mud bentonite is pulverized into granules, and about 4-5 hours at about 700 rpm when the heated green mud bentonite is pulverized into a powder form. While it is rotated. This grinding blade is pulverized about 20 kg of lump-shaped green mud bentonite, and when rotated at about 320 rpm to 370 rpm, it is pulverized to the same size as ordinary granular coffee grains, but about 80% (vol%) of the total 20 kg is granulated. It was pulverized to the size of grains, and most of it was ground to the size of grains of coffee, especially when rotated at 350 rpm. In addition, when the grinding blade is rotated at about 680 rpm to 720 rpm for about 4-5 hours to secondary pulverize about 20 kg of green mud bentonite pulverized in the form of grains as described above, green mud bentonite of about 150 to 300 mesh It was pulverized into powder, and in particular, when rotated at about 700 rpm, green mud bantonite was pulverized into a powder of about 250 to 350 mesh.

As shown in FIG. 6, the above-described triple mesh transmission unit is a structure in which the first to third cylindrical strainers are overlapped in a spaced state inside the sieve chamber. As shown in the triple mesh transmission unit, first to third cylindrical strainers are sequentially installed from the center of the sieve chamber to the outside. The sieve chamber is installed inclined as shown, and green mud bentonite pulverized into powder is injected through the open side. At this time, the green mud bentonite is introduced into the first cylindrical sieve having a larger mesh than the second and third cylindrical sieves as the first cylindrical sieve is located in the center of the sieve chamber. The sieve chamber is rotated by a mesh rotating motor as shown. Therefore, as the green mud bentonite pulverized into powder generates an effect such as shaking the whisk by rotation, it passes through the first to third cylindrical sieves sequentially, and only particles less than 300 mesh are discharged to the powder outlet of the sieve chamber. Is captured.

On the other hand, the above-described pozzolanic volcanic soil processing step includes a high-temperature heating step of dehydrating moisture by heating and lowering the pozzolanic volcanic soil in the form of a lump containing moisture at a high temperature of 1200°C to 1500°C for 48 to 52 hours; A pulverizing step of pulverizing the pozzolanic volcanic soil in the form of a lump that has been dehydrated in the stirring pulverization unit and pulverizing it into grains; Pozzolanic volcanic soil in the form of grains is re-injected into the above-described stirring and pulverizing unit, thereby obtaining a siliceous mineral to obtain a powdery siliceous mineral: and the pozzolanic volcanic soil in the form of 80 meshes of a first cylindrical sieve and 150 mesh A finely divided type consisting of pozzolanic volcanic soil having a size smaller than 300 mesh by sequentially passing through the first to third cylindrical sieves by inserting into the triple net permeation unit consisting of a second cylindrical sieve and a third cylindrical sieve of 300 mesh to form a slope. It includes; fine powder extraction step of extracting the siliceous mineral. Each of the above-described steps constituting the pozzolanic volcanic soil processing step is substantially the same as the above-described green mud bentonite powder manufacturing step, so a detailed description thereof will be omitted.

However, if only the above-described high-temperature heating step is described, the above-described high-temperature heating step heats the pozzolanic volcanic soil at high temperature as described above using the above-described vacuum drying unit, but from 1200° C. to 1500° C. to obtain a high-quality powdered siliceous mineral. It is heated at a temperature of 48 to 52 hours. In the high-temperature heating step, when heated to 1200° C. and less than 48 hours, the quality of the siliceous mineral is slightly less than desired, and when heated for more than 1500° C. and 52 hours, the siliceous mineral is dissipated and changes to low quality. Therefore, the high temperature heating step is heated during the above-described temperature and time

desirable. In particular, the high-temperature heating step had the best quality when heated at 1300°C for 50 hours.

The above-described shell processing step includes a salt removal step of removing salt by washing the shell; A drying step of drying the washed shell with hot air as described above; Shell heating step of putting the dried shell into a heating furnace and heating it at a high temperature of 700°C to 900°C for 24 to 30 hours for plastic processing; A grinding step of cooling the heated shell and then grinding it into a powder form to obtain a powdered calcined calcium; Powdered calcined calcium is introduced into the triple-mesh permeation unit consisting of a first cylindrical sieve of 80 mesh, a second cylindrical sieve of 150 mesh, and a third cylindrical sieve of 300 mesh to form a slope, and the first to third cylindrical sieves are sequentially And a fine powder extraction step of extracting calcined calcium in the form of fine powder consisting of a size smaller than 300 mesh by permeating it.

Here, in the above-described desalination step, the shell is submerged in a storage tank in which normal fresh water such as tap water or groundwater is stored for 12 to 24 hours to remove salt. At this time, the fresh water in which the shells are stored removes all fresh water about 2 to 3 hours after the shells are stored, and the fresh water is stored again and removed again after 2 to 3 hours. After complete removal, fresh water is sprayed with the submerged shell unfolded, and salt is finally removed from the surface of the shell through water pressure.

In the shell heating step, a shell from which salt has been removed is placed in a conventional heating furnace for heating the electric vacuum dryer or glass, etc., for a set time and then heated to a set temperature. That is, the shell is heated in a heating furnace at a high temperature of 700°C to 900°C for 24 to 30 hours. At this time, when the shell is heated to 700° C. and less than 24 hours, calcined calcium of a desired quality cannot be obtained, and when heated at 900° C. and 30 hours or more, it is dissipated due to excessive overheating and thus cannot be used as calcined calcium. Therefore, it is preferred that the shell is heated during the above-described temperature and time. In particular, the shell provided the best quality calcined calcium when heated to 820°C.

In the pulverizing step, the heated shell is first pulverized and second pulverized in the same manner as described above using the stirring pulverization unit. This pulverization step is the same as the pulverization step of the above-described green mud bentonite production step, so a detailed description thereof will be omitted. In addition, since the differential extraction step uses the same method as the powder extraction step of green mud bentonite described above, a detailed description thereof will be omitted. That is, since the differential extraction step uses the triple network transmitter described above, a detailed description thereof will be omitted.

On the other hand, the above-described wind pressure providing step is a step of extracting only fine particles by providing wind pressure of green mud bentonite, siliceous mineral and calcined calcium obtained by the above-described method to the wind pressure classification unit shown in FIGS. 8 and 9. As shown, the wind pressure classification unit is provided with a wind pressure duct having a structure capable of separating green mud bentonite, siliceous minerals, and calcined calcium powder, respectively, and a blowing fan providing wind pressure is provided on one side of the wind pressure duct. The other side is provided with a drawer-type collection pocket for collecting fine powder.

As shown in FIG.8, the wind pressure classification unit provides wind pressure to these powders through a blower fan on one side after powdered green mud bentonite, silicate minerals, and calcined calcium are injected through an input hopper provided at one side of each wind pressure duct. Accordingly, each powder scatters only those with light weight and is collected in the collection pocket through the powder discharge pipe provided on the other side of the wind pressure duct. At this time, the wind pressure duct is formed in a rectangular shape with one side open so that the wind pressure of the blowing fan is ventilated and communicates with the blowing fan, and the other side is shielded to prevent the separation of the scattered powder, so that the scattered powder can be discharged through the powder discharge pipe. I can. Therefore, the wind pressure classification unit can separate and provide only powders composed of fine particles. Here, powders that have not been scattered by the wind pressure classification unit are put into a conventional ball mill device, pulverized again, and scattered again using the wind pressure classification unit, and then collected again.

On the other hand, the above-described mixture manufacturing step, 15 to 3 parts by weight of green mud bentonite, 4 to 10 parts by weight of siliceous mineral, and 5 to 9 parts by weight of calcined calcium are mixed with respect to 100 parts by weight of blast furnace slag, and Fly ash purchased from 18 to 24 parts by weight, lime 2 to 8 parts by weight, calcium aluminate (CaAl2O4 or Ca3Al2O6) 1 to 5 parts by weight, montmorillonite 0.7 to 1.8 parts by weight, kaolinite 1 To 3 parts by weight, Talc (Talc) 1 to 2.5 parts by weight, Perlite (Perlite) 9 to 23 parts by weight, Cermet (Cermet) 2 to 8 parts by weight, mica 3 to 8 parts by weight, Sepiolite (Sepiolite) 3 to 7 parts by weight are mixed with a conventional stirrer to prepare a mixture. Therefore, the solidifying agent for improving soft ground according to an embodiment of the present invention is manufactured through the above manufacturing method.

Hereinafter, a raw material manufacturing apparatus 500 for manufacturing a solidified material for deep layers of the present invention will be described in detail.

5 is a view showing a stirring and pulverizing unit 510 of the raw material manufacturing apparatus 500 in the method for manufacturing a solidified material for deep layers of the present invention.

Referring to the drawings, the raw material manufacturing apparatus 500 includes a stirring and grinding unit 510.

The stirring and pulverizing unit 510 pulverizes the green mud bentonite formed into a lump according to a predetermined time, and is formed so as to be stirred according to the pulverization, and the stirring and pulverizing unit 510 includes a housing body ( 511), a case lid 512, a grinding blade 513, and a grinding motor 514.

The housing-type body 511 is formed so that green mud bentonite is injected, and the housing-type body 511 is formed in a cylindrical shape and fixed to the ground.

The housing-type body 511 is fixed to the ground or is formed at regular intervals from the ground, and is rotated in one direction or the other direction, so that the opening of the upper portion of the housing-type body 511 may be formed to face the ground. .

The housing lid 512 is formed to close the opening side of the upper housing body 511, the housing lid 512 is formed to be opened and closed from the upper housing body 511.

A crushing motor 514 is formed in the upper portion of the housing lid 512, and a crushing blade 513 is formed in the lower portion.

The crushing blade 513 is formed to crush green mud bentonite of a lump inside the enclosure body 511, and the crushing blade 513 is formed vertically toward the lower side of the enclosure lid 512, and the enclosure lid ( 512) It is characterized in that it is formed in connection with the pulverizing motor 514 through the upper side.

The crushing motor 514 is for generating power to rotate the crushing blade 513, and the crushing motor 514 is formed on the upper side of the enclosure lid 512 and connected to the crushing blade 513 formed at the lower side. It is characterized by being.

6 is a view showing a triple network transmission unit 520 of the raw material manufacturing apparatus 500 in the method for manufacturing a deep-depth solidified material of the present invention.

Referring to the drawing, the triple net permeable portion 520 sequentially transmits the pulverized green mud bentonite through a first cylindrical sieve, a second cylindrical sieve, and a third cylindrical sieve, thereby forming a powdery green mud with small particles. It is formed to obtain bentonite, wherein the triple net permeable part 520 is fixedly formed on the ground in one direction of the stirring and pulverizing part 510, and the triplet permeable part is formed to be inclined at a certain angle for efficient transmission. It is characterized.

The triple net permeable part 520 includes a sieve chamber 521, a first cylindrical sieve 522, a second cylindrical sieve 523, a third cylindrical sieve 524, a powder discharge port 525, a mesh rotating motor 526. Includes.

The sieve chamber 521 is formed to support the first cylindrical sieve 522 to the third cylindrical sieve 524, and the sieve chamber 521 is formed to be inclined at a certain angle and fixed to the ground. To do.

The first cylindrical sieve 522 is formed to first filter green mud bentonite in the form of powder that is pulverized and introduced, and the first cylindrical sieve 522 is formed in the center of the sieve chamber 521 do.

The second cylindrical sieve 523 is formed to filter the powdered green mud bentonite filtered through the first cylindrical sieve 522 in a powder form with smaller particles, and the second cylindrical sieve 523 is a first Cylindrical strainer 522 is characterized in that it is formed at regular intervals around the outer circumference.

The third cylindrical sieve 524 is formed to filter the powdery green mud bentonite filtered through the second cylindrical sieve 523 in a powder form with smaller particles, and the third cylindrical sieve 524 is a second It is characterized in that it is formed at regular intervals around the outer circumference of the cylindrical strainer 523.

Therefore, the powdered green mud bentonite that is moved from the first cylindrical sieve 522 to the third cylindrical sieve 524 is characterized in that a smaller hole is formed as the hole size of the net goes toward the third cylindrical sieve 524.

7 is a view showing the vacuum drying unit 530 of the raw material manufacturing apparatus 500 in the method for manufacturing a solidified material for deep layers of the present invention.

Referring to the drawing, the vacuum drying unit 530 is formed to be in a vacuum pressure state to generate bubbles by heating the powdered green mud bentonite, and extracts bubbles and moisture on the green mud bentonite in a vapor state by vacuum pressure. In order to do this, it is characterized in that it is formed on the ground in one direction of the triple speech transmission part.

The vacuum drying unit 530 includes a drying chamber 531, a heating heater 532, a sealing door 534, a sealing handle 535, a vacuum pump 536, and a storage container 537.

The drying chamber 531 is formed on the ground, and is formed to dry green mud bentonite stored in the storage container 537.

The heating heater 532 is formed to dry green mud bentonite, and is formed to increase the temperature in the drying chamber 537 and the drying chamber 531 at the bottom surface of the drying chamber 531 .

The sealing door 534 is formed to seal an opening formed at one side of the drying chamber 531, and the sealing door 534 is formed to be opened and closed at one side of the drying chamber 531.

The sealing door 534 is characterized in that it is formed to be in close contact with the sealing handle 535 in the closed state.

The sealing handle 535 is formed to completely contact the sealing door 534 when it is closed to the drying chamber 531, and the sealing handle 535 is formed on one side outside the sealing door 534. do.

Therefore, when the sealing door 534 is in close contact with the drying chamber 531, the sealing door 534 is completely in close contact with the drying chamber 531 by turning the sealing handle 535 in one direction, and the sealing handle 535 ) Is rotated in the other direction, the boot sealing door 534 falls into the drying chamber 531.

The vacuum pump 536 is operated when the sealing door 534 is completely in close contact with the drying chamber 531 so that air does not flow into the drying chamber 531 to form a vacuum state inside the drying chamber 531. 531) It is characterized in that it is formed on one side of the upper portion.

The storage container 537 is formed to store powdered green mud bentonite, and the storage container 537 is formed above the heating heater 532 to receive the heating temperature efficiently when the heating heater 532 is operated. To do.

FIG. 8 is a perspective view showing the wind pressure classification unit 540 of the raw material manufacturing apparatus 500 in the method for manufacturing a deep-depth solidified material according to the present invention, and FIG. 9 is a cross-sectional view of FIG. 8.

Referring to the drawing, the wind pressure classification unit 540 is formed to scatter powdered green mud bentonite using wind pressure and collect it to one side to obtain green mud bentonite of fine particles, and the wind pressure classification unit 540 ) Is characterized in that it is formed on the ground in one direction of the vacuum drying unit 530.

The wind pressure classification unit 540 includes a wind pressure duct 541, a blowing fan 542, an input hopper 543, a powder discharge pipe 544, and a collection pocket 545.

The wind pressure duct 541 is formed at regular intervals on the ground, and is formed in a rectangular enclosure and is formed in a longitudinal direction to form a space in which green mud bentonite can be scattered.

The blowing fan 542 is formed to apply wind pressure to the powdered green mud bentonite injected from the top of the wind pressure duct 541, and the blowing fan 542 is formed at one side inside the wind pressure duct 541. do.

The input hopper 543 is formed to smoothly feed the powdered green mud bentonite into the wind pressure duct 541, and the input hopper 543 is formed at one side above the wind pressure duct 541. do.

The powder discharge pipe 544 is formed to discharge particulate green mud bentonite scattered by the blowing fan 542 and moved in one direction toward the collection pocket 545, and the powder discharge pipe 544 is a wind pressure duct ( 541) It is characterized in that it is formed in the lower side.

The collection pocket 545 is formed to collect particulate green mud bentonite discharged through the powder discharge pipe 544, and the collection pocket 545 is formed at one side under the wind pressure duct 541 to enable slide opening and closing. It is characterized in that it is formed.

10 is a view showing another embodiment of the agitation pulverization unit 510, the spray pulverization unit 600.

Referring to the drawing, the fractional pulverization unit is characterized in that the powdery green mud bentonite is stirred and pulverized at the same time, and when agitating and pulverizing, air is sprayed to ensure efficient stirring and pulverization.

The spray and pulverization unit 600 includes a stirring blade 610, a first crushing blade 620, a second crushing blade 630, an air injection nozzle 640, and an air supply pipe 641.

The stirring blade 610 is vertically formed in the inner center of the housing-type body 511, and is characterized in that it uniformly forms green mud bentonite in a lump shape.

The first crushing blade 620 is for pulverizing green mud bentonite, and the first crushing blade 620 is formed at either one side or an upper portion of the housing body 511.

The second crushing blade 630 is for pulverizing green mud bentonite, and the second crushing blade 630 is formed at one of the other side or the lower portion of the housing body 511.

That is, the first crushing blade 620 and the second crushing blade 630 may have a first crushing blade 620 and a second crushing blade 630 formed above and below the enclosure body 511, It is characterized in that it can be vertically formed on the inner bottom of the enclosure type body 511.

The air injection nozzle 640 is to circulate and move the green mud bentonite to be stirred and pulverized from the top to the bottom and from the bottom to the top, and the air injection nozzle 640 is formed in plurality around the housing body 511 It features.

The air injection nozzle 640 is characterized in that it is operated when the pulverizing motors 514 (M2) that operate the first crushing blade 620 and the second crushing blade 630 are operated so that crushing can be efficiently performed. To do.

9 is a view showing a rotary filter unit 700 that is another embodiment of the triple network transmission unit 520.

Referring to the drawing, the rotational sieve 700 is for rotating the first cylindrical sieve 522 and the third cylindrical sieve 524 in different directions, respectively, and is a powder type that is introduced into the triplet permeable section 520 It is characterized in that the transmittance of green mud bentonite is maximized, and the speed of filtering through the strainer is made quickly.

The rotating filter unit 700 includes a contact bar 710, a first rotating motor 720, a first rotating gear 721, a first rotating belt 722, a mesh fixing flange 730, and a second rotating motor ( 740), a second rotation gear 741, and a second rotation belt 742.

The contact bar 710 is formed to prevent the rotating powdered green mud bentonite from being in contact with each other when the first cylindrical strainer 522 is rotated, and the contact bar 710 is a first cylindrical sieve 522 ) Characterized in that it is formed in a plurality of inside.

The first rotating motor 720 generates power for rotating the first cylindrical sieve 522, and the first rotating motor 720 is formed at one side below the sieve chamber 521.

The first cylindrical strainer 522 is rotated by the rotational power generated by the first rotating motor 720.

The first rotation gear 721 is formed to receive rotational power generated by the first rotation motor 720, and the first rotation gear 721 is formed around one side of the first cylindrical sieve 522. It features.

The first rotating belt 722 is for providing rotational power generated by the first rotating motor 720 to the first rotating gear 721, and the first rotating belt 722 is a first rotating gear 721 ) And the motor pulley of the first rotary motor 720.

The mesh fixing flange 730 is for fixing the second cylindrical strainer 523 to the sieve chamber 521, and the mesh fixing flange 730 is coupled to the opening side of the sieve chamber 521, and the sieve chamber ( The second cylindrical strainer 523 is fixed to the mesh fixing flange 730 fixed to the 521, and is formed so as not to rotate in the sieve chamber 521.

The second rotary motor 740 is formed to rotate the third cylindrical strainer 524, and the second rotary motor 740 is a strainer to generate rotational power for rotating the third cylindrical strainer 524. It is characterized in that it is formed on one side of the upper chamber 521.

The second rotation gear 741 is formed to receive the rotational power generated by the second rotation motor 740, and the second rotation gear 741 is formed at one side of the third cylindrical sieve 524. It characterized in that it is formed so as to penetrate 521).

The second rotation belt 742 is formed for connection between the second rotation gear 741 and the motor pulley of the second rotation motor 740, and the second rotation belt 742 is a second rotation motor 740 ) Is formed to provide the rotational power generated in the second rotational gear 741 side.

10 is a view showing a powder control classification unit 800 that is another embodiment of the wind pressure classification unit 540.

Referring to the drawing, the powder control sorting unit 800 is characterized in that it controls the amount of powdered green mud bentonite that is injected into the input hopper 543 and prevents the scattered particulate green mud bentonite from flowing back. .

The powder control sorting unit 800 includes a powder control means 810 and a backflow prevention means 820.

The powder control means 810 is formed to adjust the amount of powdered green mud bentonite that is introduced into the input hopper 543, and the powder control means 810 includes a powder control panel 811, a control cylinder 812 ).

The powder control panel 811 is for controlling the powder to be injected, and the powder control panel 811 is formed at one side and the other side inside the input hopper 543, and the powder control panel 811 is a control cylinder ( The powder control panel 811 on one side by 812 is characterized in that the powder control panel 811 on the other side is formed to move away or close to the side opposite to each other in the other direction.

Therefore, it is characterized in that the amount of green mud bentonite injected into the gap generated when the respective powder control panels 811 are separated from each other is controlled.

The control cylinder 812 is for moving the powder control panel 811 in one direction or the other direction, and the control cylinder 812 is a powder control panel 811 formed in the upper and lower sides of the input hopper 543 It is formed on one side and is formed to be fixed to the input hopper 543.

The backflow prevention means 820 is for preventing the scattered particulate green mud bentonite from flowing backward, and the backflow prevention means 820 includes a backflow prevention panel 821, a panel control cylinder 822, and a wind direction control panel. 823), and an angle adjustment motor 824.

The backflow prevention panel 821 is formed to prevent the particulate green mud bentonite scattered by the blowing fan 542 and moved toward the collecting pocket 545 from flowing back to the blowing fan 542. The backflow prevention The panel 821 is characterized in that it is formed to be inclined toward one side inside the wind pressure duct 541.

The panel control cylinder 822 is formed to adjust the length of the backflow prevention panel 821, and the panel control cylinder 822 is fixed to one side under the wind pressure duct 541, and the panel control cylinder 822 It is characterized in that the cylinder shaft is formed connected to one side of the backflow prevention panel 821 so that the backflow prevention panel 821 is formed to be lengthened or shortened by the operation of the panel control cylinder 822.

The wind direction control panel 823 is formed to change the moving direction of the particulate green mud bentonite scattered, and the wind direction control panel 823 is formed to be inclined toward one side above the wind pressure duct 541 do.

The wind direction control panel 823 is characterized in that the particulate green mud bentonite scattered can be smoothly moved toward the collection pocket 545.

The angle control motor 824 is formed to be connected to the wind direction control panel 823 by passing through one side of the wind pressure duct 541 to rotate the wind direction control panel 823, when the angle control motor 824 is operated. It is characterized in that the wind direction control panel 823 is rotated to a certain angle so that the particulate green mud bentonite can be efficiently collected toward the collection pocket 545.

The deep-layer solidifying material is a solidifying material for reducing water content. The solidified material for reducing water content reduces the water content of soil and makes it easier to excavate and transport general soil other than high water content and cohesive soil.

Since the above-described embodiment is only a description of a preferred embodiment of the present invention, the scope of application of the present invention is not limited to this, and if essential characteristics can be satisfied, appropriate modifications (structure or configuration Changes or partial omissions or supplements) are possible. Further, in the above-described embodiments, some or a plurality of features may be combined with each other. Therefore, since the structure and configuration of each component shown in the embodiment of the present invention can be implemented by modification or combination, it is natural that such a modification or combination of the structure and configuration belongs to the appended claims of the present invention.

100: silo stirring device
110: raw material storage unit 111: main raw material silo
112: auxiliary raw material silo 113: silo valve
130: raw material measuring unit 131: main raw material measuring chamber
132: auxiliary material measuring chamber 133: metering valve
150: raw material stirring unit 151: stirring chamber
152: stirring screw 153: stirring motor
170: product raw material transfer unit 171: product hopper
172: first transfer pipe 173: first transfer screw
174: first screw motor 175: second transfer pipe
176: second transfer screw 177: second screw motor
180: 1st bucket transfer pipe 181: 1st rising screw
182: first lift motor 183: second bucket transfer pipe
184: second lifting screw 185: second lifting motor
190: product discharge part 191: discharge chamber
192: discharge valve
200: vibration filter
210: raw material manure pipe 211: foreign matter outlet
212: outlet opening and closing door 213: foreign matter discharge bar
214: discharge bar cylinder
220: first filtering means 221: fixed strainer
230: second fertilizing means 231: guide bar
232: slide strainer 233: slide cylinder
240: third filtering means 241: vibrating strainer
242: vibration motor 243: elastic member
500: raw material manufacturing device
510: stirring and pulverizing unit 511: housing type body
512: case lid 513: grinding blade
514: grinding motor
520: triple net transmission unit 521: filter net chamber
522: first cylindrical sieve 523: second cylindrical sieve
524: third cylindrical strainer 525: powder outlet
526: mesh rotation motor
530: vacuum drying unit 531: drying chamber
532: heating heater 534: sealing door
535: sealing handle 536: vacuum pump
537: storage bin
540: wind pressure classification unit 541: wind pressure duct
542: blowing fan 543: input hopper
544: powder discharge pipe 545: collection pocket
600: spray pulverization unit 610: stirring blade
620: 1st grinding blade 630: 2nd grinding blade
640: air injection nozzle 641: air supply pipe
700: rotary filter 710: contact bar
720: first rotary motor 721: first rotary gear
722: first rotating belt 730: mang fixing flange
740: second rotary motor 741: second rotary gear
742: second rotating belt
800: powder control classification unit 810: powder control means
811: powder control panel 812: control cylinder
820: backflow prevention means 821: backflow prevention panel
822: panel control cylinder 823: wind direction control panel
824: angle adjustment motor

Claims (2)

A green mud bentonite powder manufacturing step of using green mud bentonite, pozzolanic volcanic soil and shells, and preparing the green mud bentonite as dried powder;
Pozzolanic volcanic soil processing step of obtaining powdered siliceous minerals through a processing process of heating and pulverizing the pozzolanic volcanic soil;
A shell processing step of obtaining powdered calcined calcium through a processing step of heating and pulverizing the shell;
A wind pressure providing step of collecting only fine particles scattered up to a set distance by providing a wind pressure in a state in which the powdered green mud bentonite, the siliceous mineral, and the calcined calcium are separated from each other, and
15 to 3 parts by weight of the particulate green mud bentonite, 4 to 10 parts by weight of the siliceous mineral, and 5 to 9 parts by weight of calcined calcium are mixed with respect to 100 parts by weight of blast furnace slag, but fly ash 18 based on 100 parts by weight of the blast furnace slag To 24 parts by weight, lime 2 to 8 parts by weight, calcium aluminate (CaAl2O4 or Ca3Al2O6) 1 to 5 parts by weight, montmorillonite 07 to 18 parts by weight, kaolinite 1 to 3 parts by weight, talc 1 to 25 parts by weight, 9 to 23 parts by weight of Perlite, 2 to 8 parts by weight of Cermet, 3 to 8 parts by weight of mica, 3 to 7 parts by weight of Sepiolite are stirred together in a pulverized part It includes a mixture preparation step of preparing a mixture,
The green mud bentonite powder manufacturing step,
A heating step of dehydrating moisture by heating green mud bentonite in the form of a lump containing moisture at 150° C. to 220° C. for 12 to 24 hours;
A first pulverizing step of pulverizing the dehydrated green mud bentonite into a granule by putting it into a pulverizer;
Second pulverization step of pulverizing the green mud bentonite in the form of grains into a powder form by re-injecting the green mud bentonite into the stirring pulverizer:
A filtration step of sequentially permeating and filtering the green mud bentonite in the form of powder through a plurality of cylindrical filtration nets each consisting of 80 mesh, 150 mesh and 300 mesh to form an inclination,
The heating step,
A drying furnace input step of storing the green mud bentonite in the form of a lump containing moisture in a storage container and putting it into a vacuum dryer; And
Heating to extract bubbles and moisture into a vapor state through vacuum pressure of the vacuum pump while generating bubbles by heating the lump-shaped green mud bentonite stored in the reservoir by operating the heater and the vacuum pump in the sealed state of the vacuum drying unit And a vacuum step,
The first grinding step,
The grinding blade of the grinder is rotated at 320 rpm to 370 rpm per minute for 1 to 2 hours to pulverize the lump-shaped green mud bentonite stored in the enclosure type body of the grinder into granules,
The second grinding step,
The grinding blade of the grinder is rotated at 700 rpm to 750 rpm per minute for 4 to 5 hours to grind the granular green mud bentonite stored in the enclosure type body of the grinder into a powder form,
The filtering step,
Each of the 80 mesh, 150 mesh, and 300 mesh is provided with a cylindrical first cylindrical sieve to a third cylindrical sieve installed in an overlapping state, and in the first cylindrical sieve of the inclined triple net permeable section, An input step of introducing the powdered green mud bentonite; And
A transmission step of sequentially transmitting the powdered green mud bentonite through a first cylindrical sieve to a third cylindrical sieve by rotating the triple net permeable portion,
The pozzolanic volcanic soil processing step,
A high-temperature heating step of injecting pozzolanic volcanic soil in the form of a lump containing moisture into a heating furnace and heating it at a high temperature of 1200°C to 1500°C for 48 to 52 hours;
Crushing step of crushing the heated pozzolanic volcanic soil into a granule by putting it into a crusher:
Obtaining a silicate mineral by re-injecting the granular pozzolanic volcanic soil into the grinder and pulverizing it into a powder form; And
Including; a filtration step of sequentially permeating and filtering the powdered siliceous mineral through a plurality of cylindrical filtration nets each consisting of 80 mesh, 150 mesh, and 300 mesh to form an inclination,
The wind pressure providing step,
The powdered green mud bentonite, the siliceous mineral, and a plurality of input hoppers to which the calcined calcium are respectively input are provided on one side of the upper side, and a rectangular wind pressure duct provided with a powder discharge pipe at the lower side of the other side, the end of which is shielded, and the Powder for injecting the powdered green mud bentonite, the silicate mineral and the calcined calcium into each of the input hoppers of the wind pressure classification unit comprising a blowing fan provided at one end of the wind pressure duct and a collection pocket provided under the powder discharge pipe Input step; And
By providing wind pressure from one side of the wind pressure duct to the other side through the blowing fan to scatter the powder to the other side of the wind pressure duct and collect the powder scattered through the powder discharge pipe into the collection pocket, among the initially introduced powders Includes; blowing step of separating only the powder in the form of fine particles,
The shell processing step,
A salt removal step of washing the shell to remove salt;
A drying step of drying the washed shell with hot air;
Shell heating step of putting the dried shell into a heating furnace and heating it at a high temperature of 700°C to 900°C for 24 to 30 hours;
A grinding step of cooling the heated shell and grinding it into a powder form to obtain powdered calcined calcium; And
In the method for producing a solidified material for deep layers comprising a filtration step of sequentially permeating and filtering the powdered shells each of 80 mesh, 150 mesh, and 300 mesh to form an inclination,
The deep solidification material,
Based on 100 parts by weight of blast furnace slag, 18 to 24 parts by weight of fly ash, 2 to 8 parts by weight of lime, 1 to 5 parts by weight of calcium aluminate (CaAl2O4 or Ca3Al2O6), 07 to 18 parts by weight of montmorillonite, and Kaolinite ) 1 to 3 parts by weight, talc (Talc) 1 to 25 parts by weight, Perlite (Perlite) 9 to 23 parts by weight, Cermet (Cermet) 2 to 8 parts by weight, mica 3 to 8 parts by weight, Sepiolite 3 to 7 parts by weight, 15 to 3 parts by weight of dry pigment, 5 to 9 parts by weight of calcined calcium as a soil improver, and 4 to 10 parts by weight of siliceous mineral are mixed,
Each step of preparing the particulate green mud bentonite,
It includes a raw material manufacturing device for manufacturing using pulverization, permeation, drying and wind pressure,
The raw material manufacturing apparatus,
A stirring and pulverizing unit formed on the ground to crush the green mud bentonite according to a preset time;
A triple net permeable portion formed on the ground of one side of the stirring and pulverizing portion to sequentially permeate the pulverized green mud bentonite through the first cylindrical sieve, the second cylindrical sieve, and the third cylindrical sieve;
A vacuum drying unit formed on one side of the triple net permeable unit to generate bubbles by heating green mud bentonite to extract bubbles and moisture into a vapor state by vacuum pressure;
It includes a wind pressure classification unit formed on the ground of one side of the vacuum drying unit to provide wind pressure to scatter the powder input from the upper side and collect it toward the collection pocket to separate the fine particles,
The stirring and grinding unit,
A housing-type body formed above the ground to stir and crush green mud bentonite;
A housing lid formed to be opened and closed at an opening formed in the upper portion of the housing type body to discharge each raw material input and stirred and pulverized raw material;
A grinding blade formed under the housing lid to crush green mud bentonite in a lump inside the housing body;
It includes a crushing motor formed on the upper part of the housing lid to rotate the crushing blade,
The triple network transmission unit,
A sieve chamber formed on the ground to support the first to third cylindrical sieves;
A first cylindrical sieve formed in the center of the sieve chamber to first filter the powdered green mud bentonite that is pulverized and introduced;
A second cylindrical strainer formed at predetermined intervals around the outer circumference of the first cylindrical sieve in order to secondly filter the green mud bentonite filtered through the first cylindrical sieve;
A third cylindrical strainer formed at regular intervals around the outer circumference of the second cylindrical sieve to filter the green mud bentonite filtered through the second cylindrical sieve;
A powder outlet formed at one side of the sieve chamber to discharge the powdered green mud bentonite filtered through the third cylindrical sieve;
It includes a mesh rotation motor formed at one side of the sieve chamber so that the first to third cylindrical sieves are rotated based on the sieve chamber,
The vacuum drying unit,
A drying chamber formed on the ground to dry green mud bentonite stored in the storage bin;
A heating heater formed on the bottom surface of the drying chamber to heat the inside to dry the green mud bentonite;
A sealing door formed to open and close to one side of the drying chamber in order to maintain a vacuum state inside the drying chamber;
A sealing handle formed on an outer side of the sealing door so that the sealing door is locked in a screw manner so that the sealing door is fixed to the drying chamber;
A vacuum pump formed at an upper side of the drying chamber to form the inside of the drying chamber with the sealing door closed in a vacuum state;
It includes a storage bin formed above the heating heater so that green mud bentonite is stored and dried,
The wind pressure classification unit,
Wind pressure ducts formed at regular intervals from the ground in the longitudinal direction;
A blowing fan formed inside the wind pressure duct to apply wind pressure to the powdered green mud bentonite introduced into the wind pressure duct;
An input hopper formed on one side of the upper wind pressure duct to introduce powdered green mud bentonite into the wind pressure duct;
A powder discharge pipe formed at a lower side of the wind pressure duct to discharge particulate green mud bentonite scattered and moved;
It includes a collection pocket formed to slide from one side under the wind pressure duct so that particulate green mud bentonite discharged through the powder discharge pipe is collected,
The stirring and grinding unit,
The green mud bentonite is stirred and pulverized at the same time, and further includes a spraying and pulverizing unit for efficient stirring by spraying air,
The spray pulverization unit,
A stirring blade vertically formed in the center of the enclosure type body;
A first grinding blade formed at any one of one side or an upper portion to grind green mud bentonite;
A second grinding blade formed at one of the other side or the lower side to grind green mud bentonite;
A plurality of air spray nozzles formed around the enclosure body to spray air for stirring and pulverizing green mud bentonite to move from top to bottom and from bottom to top;
In order to supply air to the air injection nozzle, one side is connected to the air injection nozzle, and the other side includes an air supply pipe connected to an air pump formed to the outside,
The triple network transmission unit,
Further comprising a rotating strainer for rotating the first cylindrical sieve and the third cylindrical sieve in different directions,
The rotating filter unit,
A plurality of contact bars formed around the inner circumference of the first cylindrical strainer so that the rotating powdered green mud bentonite does not come into contact and clumps;
A first rotating motor formed under the sieve chamber to generate power for rotating the first cylindrical sieve;
A first rotating gear formed around one side of the first cylindrical strainer to receive rotational power generated by the first rotating motor;
A first rotating belt connected between the motor gear of the first rotating motor and the first rotating gear to provide rotational power generated by the first rotating motor to the first rotating gear side;
A mesh fixing flange formed at one side of the second cylindrical sieve and one side of the sieve chamber to fix the second cylindrical sieve in the sieve chamber;
A second rotary motor formed above the sieve chamber to generate power for rotating the third cylindrical sieve;
A second rotation gear formed through the sieve chamber through the sieve chamber toward one side of the third cylindrical sieve in order to receive rotation power generated by the second rotation motor;
And a second rotation belt connected between the motor gear of the second rotation motor and the second rotation gear in order to provide rotational power generated by the second rotational motor toward the second rotational gear,
The wind pressure classification unit,
Further comprising a powder control sorting unit for controlling the amount of powdered green mud bentonite to be injected into the input hopper and preventing the scattered particulate green mud bentonite from flowing back,
The powder control classification unit,
Powder control means for adjusting the amount of powdered green mud bentonite to be introduced into the input hopper; And
It includes a backflow prevention means for preventing the scattered particulate green mud bentonite from backflowing,
The powder control means,
A powder control panel formed at an upper side and a lower side inside the input hopper to control the powder to be added;
It includes control cylinders respectively formed on the powder control panel formed in the upper and lower sides of the input hopper,
The backflow preventing means,
A backflow prevention panel formed to be inclined toward one side inside the wind pressure duct so that the particulate green mud bentonite scattered and moved does not flow back toward the blowing fan;
A panel control cylinder formed at one side of the backflow prevention panel to adjust the length of the backflow prevention panel;
A wind direction control panel formed to be inclined to an upper side of the wind pressure duct in order to change the moving direction of the scattered particulate green mud bentonite;
A method of manufacturing a solidified material for deep layers comprising an angle control motor connected to the wind direction control panel on one side outside the wind pressure duct to control the inclination angle of the wind direction control panel.


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