KR20200143056A - A solidifying agent, a Cement-based composition and a concrete composition containing thereof - Google Patents

Abstract

The present invention provides a solidifying agent capable of solidification without the addition of aggregate, and a cement-based composition and a concrete composition comprising the same. In the case of concrete according to the present invention, initial strength development is fast, and semi-permanent strength development can be provided while maintaining strength for a long period of time. The solidifying agent includes 1 to 20 parts by weight of a silicate mineral, 10 to 30 parts by weight of a moisturizer, 20 to 40 parts by weight of a metal compound, and 5 to 25 parts by weight of iron oxide, based on 20 to 40 parts by weight of a lignosulfonic acid-based compound.

Description

A solidifying agent, a cement-based composition and a concrete composition containing thereof {A solidifying agent, a cement-based composition and a concrete composition containing thereof}

The present invention provides a cement-based composition and a concrete composition comprising the solidified material and the same, which can be solidified without the addition of aggregate. In the case of the concrete according to the present invention, initial strength development is fast, and semi-permanent strength development can be provided while maintaining strength for a long period of time.

Concrete is one of the most important civil engineering materials today. It is widely used in a variety of civil works because of its high compressive strength, high durability and a wide range of strengths, as well as rich raw materials, low cost and simple manufacturing processes.

Typical concrete is an artificial stone material formed after hardening of a mixture of cement, sand, stone, admixture and water. Sand and stone act as a skeleton in concrete and inhibit cement contraction. Cement and water form a cement paste that covers the surface of the sand and stone and fills the space between the sand and the stone. Before the hardening step, the cement paste serves as a lubricating role and produces a concrete mixture with the desired workability. After the hardening step, it solidifies the aggregate, which acts as a skeleton to form a firm body. Typical concrete has specific workability, strength, deformation and durability. As such, in the case of cement solidification, strength is difficult to develop unless aggregates such as gravel and sand are added.

Among concrete materials, the indiscriminate collection of natural history, which is currently used as fine aggregate, causes an imbalance in the natural ecosystem and environment, and has also resulted in a rapid deterioration of the quality of natural history. It is opaque and has inherent difficulties in manufacturing high-strength concrete.

On the other hand, with the recent increase in high-rise structures, interest in ultra-high strength concrete is increasing. Problems have arisen with respect to physical properties such as reduction of the strength and self-weight of concrete due to the increase in size and length of the building, and development is active.

For example, Patent No. 10-1948627 provides a composition containing water, cement, blast furnace slag fine powder and artificial lightweight aggregate in a high-strength lightweight concrete composition containing an artificial lightweight aggregate, due to the high absorption rate of the artificial lightweight aggregate. It is disclosed that it is possible to solve problems that occur when applied to concrete and to provide high-strength lightweight concrete that satisfies the criteria according to the standard concrete specification, but this is limited in that it includes artificial aggregates.

In addition, Korean Patent Publication No. 10-2019-0050409 discloses an ultra-high-performance concrete composition with a sorting aggregate, and when manufacturing ultra-high-performance concrete (UHPC), dolomite, basalt, limestone, granite, etc. Disclosed is a technology capable of maintaining excellent physical properties such as compressive strength, tensile strength and fluidity while reducing the manufacturing cost of ultra-high performance concrete (UHPC) by selecting to contain at least one. However, this also has some limitations in that it includes a 5mm class sorting aggregate.

Accordingly, this patent has completed the present invention in order to provide a cement-based composition that can be solidified without the addition of aggregates and a cement-based composition including the same, and when including the same, to provide a technology in which the strength of concrete is semi-permanently expressed. Furthermore, this technology can be applied to various industries such as construction, civil engineering, and others.

It is an object of the present invention to provide a cement-based composition comprising the same and a solidifying material capable of solidifying cement without adding aggregates.

An object of the present invention is to provide a cement-based composition applicable to organic and inorganic soils.

An object of the present invention is to maintain the strength development semi-permanently while exhibiting high initial strength and long-term strength development when producing concrete containing the cement-based composition.

In addition, it is intended to apply the cement-based composition to various fields.

According to an embodiment of the present invention, based on 20 to 40 parts by weight of a lignosulfonic acid-based compound, 1 to 20 parts by weight of a silicate mineral, 10 to 30 parts by weight of a moisturizer, 20 to 40 parts by weight of a metal compound, and 5 to 25 parts by weight of iron oxide A solidified material containing wealth is provided.

According to an embodiment of the present invention, the lignosulfonic acid-based compound is provided with at least one selected from lignosulfonate soda, lignosulfonate calcium, and lignosulfonate sodium.

According to an embodiment of the present invention, the silicate mineral is kaolinite, zeolite, montmorillonite, phyllosilicate, smectite, halosite, and nontro. At least one or more selected from nontronite, bentonite, vermiculite, saponite, and beidellite is provided. Preferably cannolinite is provided.

The silicate mineral is in a porous form, and in this case, the size of the pores is 5 to 40 angstroms.

According to an embodiment of the present invention, the moisturizing agent is provided with at least one or more selected from the group consisting of zirconium, allophane, illite, glycols, and glycerin.

According to an embodiment of the present invention, the metal compound is provided with at least one selected from calcium chloride, potassium chloride, sodium chloride, calcium sulfate, and sodium sulfate.

According to an embodiment of the present invention, the iron oxide is provided with at least one selected from the group consisting of ferrous oxide (FeO), ferric oxide (Fe ₂ O ₃ ), and triiron tetraoxide (Fe ₂ O ₃ ).

On the other hand, according to an embodiment of the present invention, there is provided a cement-based composition comprising a solidifying material and cement.

In this case, based on 100 parts by weight of cement, the solidified material contains 1 to 10 parts by weight.

The cement includes at least one selected from Portland cement, crude steel Portland cement, ultra-rough steel Portland cement, medium heat Portland cement, sulfate-resistant Portland cement, white Portland cement, and ultrafast hardness cement.

According to an embodiment of the present invention, a concrete composition including the cement-based composition and soil is provided.

In this case, it contains 5 to 25 parts by weight of a cement-based composition based on 100 parts by weight of the soil.

In addition, the soil includes at least one or more selected from the group consisting of organic soil, inorganic soil, clay soil, mountain sand, mud, mud, coal ash, volcanic ash and incineration ash.

There is an effect of providing a solidifying material capable of solidifying cement without adding aggregate according to the present invention. In addition, it is possible to provide a cement composition comprising the solidifying material.

In the case of concrete containing the cement composition according to the present invention, initial strength expression is fast, and semi-permanent strength expression can be provided while maintaining strength for a long period of time. In addition, it provides an effect of suppressing the occurrence of cracks.

In the case of concrete comprising the cement composition according to the present invention, it is possible to solidify organic and inorganic substances, have self-hardening and hydraulic properties, and can improve workability as early solidification is possible.

Therefore, it can be applied not only to civil engineering, construction, and architecture, but also to secondary products, thereby providing high utilization.

When producing concrete by providing a cement-based composition containing the solidifying material according to the present invention, it is a graph showing the strength expression over time.

Hereinafter, specific contents and possible implementation examples for the implementation of the present invention will be described. However, with respect to the configuration not specifically specified below, unless contrary to the purpose of the present invention, content known in the art may be applied.

In the present specification, when a layer or member is said to be located "on" another layer or member, this means that not only when a layer or member is in contact with another layer or member, but also another layer or member between the two layers or members. This includes the case where another member is present.

In addition, in the present specification, when a part "includes" a certain component, it means that other components may be further included rather than excluding other components unless otherwise stated.

In the present specification, "molecular weight" means "Weight Average Molecular Weight (Mw)" unless otherwise defined.

According to an embodiment of the present invention, a solidifying material that can be mixed with cement is provided.

More specifically, based on 20 to 40 parts by weight of a lignosulfonic acid-based compound, a silicate mineral 1 to 20 parts by weight, a moisturizing agent 10 to 30 parts by weight, a metal compound 20 to 40 parts by weight, and a solidified material comprising 5 to 25 parts by weight of iron oxide Is provided.

The lignosulfonic acid-based compound is provided with at least one or more selected from lignosulfonate soda, lignosulfonate calcium, and lignosulfonate sodium, which provides a retarder effect in cement solidification.

Retarder generally refers to a substance that retards the setting or hardening of concrete by inhibiting the hydration reaction of cement. Cement hydration occurs because the cement contacts water to produce calcium hydroxide, ethringite, and calcium silicate hydrate. Therefore, the calcium ion (Ca ²⁺ ) in the liquid phase increases and decreases again after reaching the maximum value, and the time until reaching this maximum value is the start of formation of calcium silicate hydrate or the start of condensation. Therefore, a compound that prolongs the time for the liquid Ca ²⁺ to reach the maximum (maximum supersaturation time) functions as a retarder and generally blocks the liquid Ca ²⁺ (complicates Ca ²⁺ ) or cements It is a retarding agent to make a hydration barrier on the particles.

The lignosulfonate according to the present invention is preferably provided with lignosulfonate soda. This corresponds to the inorganic retarder, and provides 20 to 40 parts by weight. If it is less than 20 parts by weight, the effect of the retarder is insufficient, and if it exceeds 40 parts by weight, there is a problem that is economically inefficient.

According to an embodiment of the present invention, in the case of soda lignosulfonic acid, in order to improve dispersibility, micronization treatment may be performed, and a role as a retarder may be preferably provided.

According to an embodiment of the present invention, the silicate mineral is kaolinite, zeolite, montmorillonite, phyllosilicate, smectite, halosite, and nontro. At least one or more selected from nontronite, bentonite, vermiculite, saponite, and beidellite is provided. Preferably cannolinite is provided.

Silicate minerals including canolinite typically provide adsorption capacity. In particular, kaolinite is used for pozzolanic properties, long-term strength expression, and durability improvement. When the weight ratio of the kaolinite increases, the initial strength decreases, but long-term strength and durability increase. It is preferable that the kaolinite contains 1 to 20 parts by weight. If the content of the kaolinite exceeds 20 parts by weight, initial strength may be reduced, and if the content of the kaolinite is less than 1 part by weight, the long-term strength and durability improvement effect may be weak.

)으로 제공된다. 규산염물질은 유해물질 차단기능과 마찬가지로 악취의 경우에도 냄새의 원인물질을 흡착 및 고정화하여,　공기중의 악취를 저감시키는 효과가 우수하다. 공극의 크기가 5 내지 40 옹스트롱 범위를 제공하여, 콘크리트 시공하는 경우, 각종 유기 오염 물질 및 중금속과 같은 오염물질을 고정화 시킬 수 있다. 즉, 오염물질 중 중금속, 질소 및 인 등은 전하를 띠게 되어 흡착이 용이하고, 이를 고정화하여 재용출이 되지 않도록 한다. Further, according to an embodiment of the present invention, since the silicate material has porosity, it may provide adsorption properties. The pore size of the porous silicate material is 5 to 40 angstroms (

). As with the blocking function of harmful substances, silicate substances are excellent in reducing odors in the air by adsorbing and immobilizing substances that cause odors. The size of the voids provides a range of 5 to 40 angstroms, so when concrete is constructed, various organic pollutants and pollutants such as heavy metals can be fixed. In other words, heavy metals, nitrogen, and phosphorus among pollutants are charged and are easily adsorbed, and they are immobilized to prevent re-elution.

According to an embodiment of the present invention, 10 to 30 parts by weight of the moisturizing agent is provided. According to an embodiment of the present invention, the moisturizing agent is provided with at least one or more selected from the group consisting of zirconium, allophane, illite, glycol, and glycerin, Preferably zirconium is provided. Zirconium provides a moisturizing effect and at the same time improves long-term strength, fire resistance and corrosion resistance.

The allophane is an amorphous clay mineral, and natural allophane is contained in weathered pumice stone, which is a weathered product of volcanic eruptions, and these allophane grains are formed in a porous spherical structure. Since the charged reactor is present, it has excellent adsorption capacity of various substances including heavy metals, and it is possible to provide a moisturizing effect because the humidity can be controlled.

The illite is a muscovite mineral made of fine particles, has a white or pale brown color, is mainly produced from an acid, which is a clay mineral production area, emits a large amount of anions and far-infrared rays, and has excellent adsorption performance. It can be used as an adsorbent and deodorant. It also provides a moisturizing effect.

The glycols may include propylene glycol, dipropylene glycol, tripropylene glycol, polypropylene glycol, monoethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, and the like, but are not limited thereto.

The glycerin (glycerin) may be provided with diglycerin, triglycerin, polyglycerin, phosphoglycerin, diphosphoglycerin, triphosphoglycerin, etc., but is not limited thereto.

It is well known to those skilled in the art that the glycols and glycerin are economical and can provide a moisturizing effect without side effects.

According to an embodiment of the present invention, 20 to 40 parts by weight of the metal compound is provided. According to an embodiment of the present invention, the metal compound is provided with at least one selected from calcium chloride, potassium chloride, sodium chloride, calcium sulfate, and sodium sulfate. In the case of metal compounds, calcium chloride is preferably provided, which is responsible for the initial strength development. However, it is not limited to calcium chloride, and sodium sulfate, potassium chloride, and sodium chloride that can provide ions can also be provided.

According to an embodiment of the present invention, the iron oxide may be provided with at least one or more selected from ferrous oxide (FeO), ferric oxide (Fe ₂ O ₃ ), and triiron tetraoxide (Fe ₃ O ₄ ), but is not limited thereto. Does not. Iron oxide serves to break down heavy metals.

On the other hand, according to an embodiment of the present invention, there is provided a cement-based composition comprising a solidifying material and cement. In this case, based on 100 parts by weight of cement, the solidified material contains 1 to 10 parts by weight. Preferably it contains 2 to 4 parts by weight. However, depending on the purpose of use, in the cement-based composition, the concentration of the solidifying material can be adjusted as needed.

According to an embodiment of the present invention, in the case of a cement-based composition containing a solidifying agent, it may be provided in various ways as a civil engineering material. Not only can concrete be manufactured, but it can also be applied to various industrial materials. For example, in the case of coal ash, it can be applied to artificial zeolite and artificial aggregate, including the cement-based composition according to the present invention.

According to an embodiment of the present invention, a concrete composition including the cement-based composition and soil is provided. In this case, it contains 5 to 25 parts by weight of a cement-based composition based on 100 parts by weight of the soil.

In particular, in the case of the existing cement composition, when producing concrete, sand, gravel, etc., which are aggregates, are essentially necessary, whereas the cement-based composition according to the present invention is characterized in that it is possible to manufacture concrete with only soil without aggregates. In particular, both self-hardening and hydraulic solidification are possible.

Thus, in the case of the concrete produced by the concrete composition according to the present invention, it provides to maintain the strength expression semi-permanently. Looking at the results of FIG. 1, when the concrete according to the present invention is manufactured, there is a section in which the initial strength development is fast, and the time when the cement solidification strength temporarily increases after that is somewhat slowed, but it is confirmed that the development continues after a certain period of time. I can.

Further, the concrete produced by such a concrete composition can be applied to buildings, roads, roadbeds, fish grass, sofa blocks, etc., but is not limited thereto.

According to an embodiment of the present invention, the cement provides at least one or more selected from Portland cement, crude steel Portland cement, ultra-rough steel Portland cement, medium heat Portland cement, sulfate-resistant Portland cement, white Portland cement, and ultrafast cement. It can be, and any cement that is commonly used may be provided without limitation.

According to an embodiment of the present invention, a concrete composition including the cement-based composition and soil is provided.

In this case, water, soil conditioner, etc. may be further included if necessary. The soil and cement are mixed, which contains fine particles, so that the soil absorbs water and becomes agglomerated.If water is added in the initial stage, evenly pulverizing and mixing is not performed, and the equipment is overloaded. After drying sufficiently and early mixing with cement, it is preferable to add a soil modifier and water as necessary. After the dried soil and cement are mixed, the soil modifier is added and mixed in the form of an aqueous solution. The concentration of the aqueous solution of the soil modifier is not limited, and it is designed as necessary according to the injection amount of the pump according to the cement ratio. The amount of water input is not fixed and can be appropriately adjusted to a level known to all technicians in the field to which this technology belongs.

According to an embodiment of the present invention, based on 100 parts by weight of soil, it contains 5 to 25 parts by weight of a cement-based composition. In the above range, the compressive strength of the soil and the binding strength of the soil can also be sufficiently maintained. Accordingly, early solidification is possible, and workability can be improved.

The soil includes at least one selected from organic soil, inorganic soil, clay soil, mud, mud soil, mountain sand, coal ash, volcanic ash, and incineration ash, but is not limited thereto.

For example, in soil solidification, in general ground improvement, soft ground improvement, construction of roads, road materials, roadbeds, etc., the ratio of the cement-based composition to soil can be adjusted according to the purpose and applied.

Furthermore, in the case of providing mud, mud, etc., or in the case of providing coal ash, clay soil, and mixtures thereof, it can be used as a landfill material or a base material because it can have both self-hardening and hydraulic properties, and can be solidified in seawater.

It is possible to form a dense structure, so it has excellent strength in both organic and inorganic soils.

Furthermore, it can be provided as a secondary product in civil engineering and construction such as fish grass and sofa blocks.

In addition, by providing the cement-based composition according to the present invention at sites where early restoration is urgent, such as roads, farm roads, and temporary constructions that do not require a surface layer, it is possible to provide an efficient work for restoration that exhibits high strength in a short period of time, It goes without saying that it can be provided in the construction method to create the lamp.

Hereinafter, the present invention will be described in more detail through specific examples. These examples are only presented to understand the content of the present invention, and the scope of the present invention is not limited to these examples.

[Example]

Example 1

(1) Manufacture of solidified material

A solidified material was prepared including 10 parts by weight of kaolinite, 17 parts by weight of zirconium, 29 parts by weight of calcium chloride, and 14 parts by weight of ferrous oxide based on 29 parts by weight of lignosulfonate soda.

(2) Preparation of cement-based composition

With respect to 100 parts by weight of Portland cement, a cement-based composition was prepared, including 3 parts by weight of the prepared solidifying material.

(3) Preparation of concrete composition

With respect to 100 parts by weight of clay, 10 parts by weight of the prepared cement-based composition, and a concrete composition were prepared.

Example 2

It was prepared in the same manner as in Example 1, except that 15 parts by weight of a cement-based composition was added to the concrete composition prepared in Example 1.

Example 3

It was prepared in the same manner as in Example 1, except that 20 parts by weight of a cement-based composition was added to the concrete composition prepared in Example 1.

Example 4

In the cement-based composition prepared in Example 1, it was prepared in the same manner as in Example 1, except that incineration ash was used in place of clay.

Example 5

In the cement-based composition prepared in Example 1, it was prepared in the same manner as in Example 1, except that mountain sand was used instead of clay.

Comparative Example 1

Common Portland cement commercially available was used.

Evaluation Example 1: Concrete strength expression result

The concrete composition prepared according to Example 1 was used, and the cement according to Comparative Example 1 was used to prepare concrete by a conventional method. The intensity expression was measured by observing the curing period. Curing conditions were carried out while maintaining the temperature at 23 ℃. The strength development measurement is performed by a compression tester specified in KS B 5533. The results for this are shown in FIG. 1.

In addition, the strength expression of concrete including the concrete composition prepared according to Examples 1 to 3 was measured and shown in Table 1. For reference, this measurement is the experimental result shown in the summer.

1 day after curing 3 days later 7 days later 30 days later Example 1 Not measurable 10KN/m ² ~ walking possible 30KN/m ²
Reaction completed in about 5 days 50KN/m ² Example 2 Walkable 20KN/m ² ~ 30KN/m ² ~ Most of the transient reactions that continued 70KN/m ² ~
Strength development continues Example 3 Within hours after completion of construction
Walkable 30KN/m ² ~ 40KN/m ² 70KN/m ²

Evaluation Example 2: Results of physical properties of concrete based on clayey soil

The concrete composition according to Example 1 was cured for 3 days, and physical properties thereof were measured. However, it was measured by changing the blending amount of the cement-based composition according to the present invention as shown in Table 2.

Wet density was measured according to KS F 2311, and uniaxial compression was measured according to KS F 2405. Fracture strain and strain coefficient were measured using a stress strain diagram through a compression tester. In addition, the permeability test was measured through the permeability test on the variable in the indoor test method. Table 2 shows the results.

Blending amount
Kg/m ³ Wet density
Kg/m ³ Water content
% Uniaxial compression
Kg/cm ² Destruction
% Strain factor
Kg/cm ² 280 2.011 20.61 29.697 1.4 2697.4 320 1.997 21.17 39.906 1.2 4089.1 360 1.989 19.64 51.918 0.9 8485.2 Permeation test 360 days 4.75×10 ^-7 cm/S

Evaluation Example 3: Results of physical properties of concrete based on incineration ash

The concrete composition according to Example 4 was cured for 3 days, and physical properties thereof were measured. However, it was measured by changing the blending amount of the cement-based composition according to the present invention as shown in Table 3.

Blending amount
Kg/m ³ Wet density
Kg/m ³ Water content
% Uniaxial compression
Kg/cm ² Destruction
% Strain factor
Kg/cm ² 200 1.766 20.50 38.825 0.8 8823.6 240 1.781 20.29 47.192 0.9 9869.3 253 1.793 18.55 51.521 0.7 12296.4 Permeation test 253 days 7.17×10 ^-8 cm/S

Evaluation Example 4: Results of physical properties of concrete based on mountain sand

The concrete composition according to Example 5 was cured for 3 days, and a physical property test was carried out. However, it was measured by changing the blending amount of the cement-based composition according to the present invention as shown in Table 4.

Blending amount
Kg/m ³ Wet density
Kg/m ³ Water content
% Uniaxial compression
Kg/cm ² Destruction
% Strain factor
Kg/cm ² 130 2.071 11.56 38.528 0.7 7114.5 170 2.090 11.01 50.631 0.7 10278.6 200 2.126 9.18 67.159 0.6 15372.3 240 2.126 9.11 78.202 0.6 18704.2 Permeation test 160 days 1.27×10 ^-7 cm/S

First, looking at FIG. 1, when the concrete according to the present invention is manufactured, there is a section in which the initial strength development is fast, and the time when the cement solidification strength temporarily increases after that is somewhat slowed, but it is confirmed that the development continues after a certain period of time. I can. Thus, the effect of semi-permanently maintaining the intensity expression can be confirmed.

Referring to the results of Tables 2 to 4, when the type of soil is clay, incineration ash, and mountain sand, physical properties such as uniaxial compression value, fracture deformation, and deformation coefficient increase as the amount of the cement-based composition according to the present invention increases. I was able to confirm it.

In addition, it was confirmed that the water permeability was also good.

Accordingly, in the case of the cement-based composition according to the present invention, it can be confirmed that it can be applied to both organic or inorganic soil. In addition, it can be confirmed that solidification proceeds even if there are no other additives.

In addition, it is possible to provide an effect of preventing re-elution of heavy metals or contaminants during concrete manufacturing by promoting the immobilization of heavy metals, including minerals such as sodium kaolin.

As described above, although the present invention has been described by a limited embodiment, the present invention is not limited to the above embodiment, which is a variety of modifications and variations from these descriptions by those of ordinary skill in the field to which the present invention belongs. It is possible. Accordingly, the spirit of the present invention should be grasped only by the claims set forth below, and all equivalent or equivalent modifications thereof will be said to belong to the scope of the spirit of the present invention.

Claims (13)

A solidifying material comprising 20 to 40 parts by weight of a lignosulfonic acid-based compound, 1 to 20 parts by weight of a silicate mineral, 10 to 30 parts by weight of a moisturizing agent, 20 to 40 parts by weight of a metal compound, and 5 to 25 parts by weight of iron oxide. The method of claim 1,
The lignosulfonic acid-based compound is at least one or more selected from the group consisting of lignosulfonate soda, lignosulfonate calcium, and lignosulfonate sodium. The method of claim 1,
The silicate mineral is at least one or more selected from the group consisting of catolinite, zeolite, montrillonite, phylosilicate, smectite, halosite, nontronite, bentonite, vermiculite, saponite, and baydelite. The method of claim 1,
The silicate mineral is a solidified material, characterized in that the pore size is 5 to 40 angstroms in a porous form. The method of claim 1,
The moisturizing agent is at least one or more selected from the group consisting of zirconium, allophane, illite, glycols, and glycerin. The method of claim 1,
The metal compound is at least one or more selected from the group consisting of calcium chloride, potassium chloride, sodium chloride, calcium sulfate, and sodium sulfate. The method of claim 1,
The iron oxide is at least one or more selected from the group consisting of ferrous oxide (FeO), ferric oxide (Fe ₂ O ₃ ) and triiron tetraoxide (Fe ₂ O ₃ ). A cement-based composition comprising the solidifying material and cement according to claim 1. The method of claim 8,
A cement-based composition comprising 1 to 10 parts by weight of the solidifying material based on 100 parts by weight of the cement. The method of claim 8,
The cement is at least any one selected from the group consisting of Portland cement, crude steel Portland cement, super crude steel Portland cement, medium heat Portland cement, sulfate-resistant Portland cement, white Portland cement, and ultrafast cement. A concrete composition comprising the cement-based composition and soil according to claim 8. The method of claim 11,
A concrete composition comprising 5 to 25 parts by weight of the cement-based composition based on 100 parts by weight of the soil. The method of claim 11,
The soil is at least any one or more selected from the group consisting of organic soil, inorganic soil, clay soil, mountain sand, mud, mud, coal ash, volcanic ash and incineration ash.

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