KR100342849B1 - Inorganic materials for greening and soil stabilization, and after using them, seed material seeding or soil stabilization - Google Patents

Abstract

The material for greening and soil stabilization of the present invention is 1 to 20% by weight of aluminum sulfate, 1 to 20% by weight of calcium sulfate, 1 to 20% by weight of silica powder, and 10 to 80% by weight of cement component with respect to 100 parts by weight of ash components. 10-50 parts by weight of an additive consisting of 10 parts by weight or less of ceramics powder is mixed, and vegetation material, soil, and water are added thereto to make slurry soil. In this case, the construction surface is usually not lost at all in the rainwater, does not cause frostbite deterioration, and contributes to good germination and growth of the vegetation material. When the mixture is stirred and mixed with the muddy soil, the muddy soil is stabilized in a short time.

Description

Inorganic materials for greening and soil stabilization, thick layer type seeding method or soil stabilization method using them

Recently, in order to protect the surface such as the surface and to green the surface, the thick-layer substrate seeding method has recently been widely constructed.

This thick-based seed seeding method is a mixture of soil, seeds, amphoterics, fertilizers, soil-improving agents, accelerators, soil freezing agents (hopping agents), etc. in a predetermined ratio. The slurry is suspended in water to form a slurry soil, and the obtained slurry soil is attached to a surface where a wire mesh is installed, for example, and the surface is coated with a mounting surface having a desired thickness.

The slurry soils attached to the surface of the slurry soil hardens with time, and in the process, the soil particles are bonded to each other, thereby advancing soil particles.

Thus, cracks occur in the mounting surface during the curing process of the lake and the granulation of soil particles, and the vegetation material (seed) added from the cracks germinate and grow.

However, the conventional thick layer substrate seeding method using the slurry soil has a problem to be solved as follows.

That is, in the conventional slurry clay soil, the curing speed is low because the main agent mainly for resinizing the soil particles is resin polymer. Therefore, the time required to completely solidify the slurry soil attached to the surface and settle on the surface in a stable state is long, and usually 2 to 3 days of curing time is required.

For this reason, when rain comes, for example, before solidified slurry land after solidification, the whole mounting surface will be lost. In the event of such a situation, the reconstruction is required in the future, so the total construction cost is greatly increased.

In addition, since conventional slurry landscaping mainly consists of resin polymers, when the curing of the soils is completed, the surface of the united soils becomes dry and the water retention and breathability are poor. The germination state of the material is sparse, and there is a problem that the germination rate is lowered. In particular, as the thickness of the mounting surface becomes thick, the amount of the amount of the admixture to be added to the soil is increased so that the above-described surface dryness is further progressed, and the vegetation material is difficult to germinate.

In addition, the slurry clay conventionally used makes it difficult to form a thick mounting surface in a short time since the curing speed of the foaming agent is slow. Depending on the fat, only one mounting surface of about 1 cm in thickness may be formed per day. For this reason, for example, a long construction time of about 3 to 5 days is required to form a mounting surface having a thickness of about 3 cm or 5 cm, and a longer construction time may be required depending on the presence or absence of rainfall during this period.

As described above, the conventional slurry slurry for land use used in the thick layer type seeding method has the problems as described above. Therefore, in addition to the soil and the lake, the soil stabilizer, single agent, and erosion inhibitor (adhesive) ), It is common to mix additives such as a water-retaining agent.

However, the compounding of this additive causes a cost increase of the slurry soil used in the construction, and cannot be said to be economically preferable.

The object of the present invention is that after 1 to 3 hours after installation, the granulation occurs and there is no loss in normal rainfall. In addition, it is possible to form a mounting surface having a thickness of about 15 cm by another mounting operation. It is porous, rich in breathability and water retention, and can germinate and grow vegetation seeds with high germination rate throughout the whole surface, and can be used as a land without frostbite deterioration (freezing of the ground and injury). Provide mineral materials for soil stabilization.

Another object of the present invention is to provide a thick layer substrate seeding method using the above-described inorganic material for greening and soil stabilization.

It is still another object of the present invention to provide a soil stabilization method for solidifying muddy soil with the above-mentioned inorganic material for greening and soil stabilization.

Disclosure of the Invention

In order to achieve the above object, in the present invention, 1 to 20% by weight of aluminum sulfate, 1 to 20% by weight of calcium sulfate, 1 to 20% by weight of silica powder, and 10 to 80 cement components, based on 100 parts by weight of the ash component. There is provided a greening and soil stabilizing inorganic material which is mixed with 10 to 50 parts by weight of an additive containing% by weight (hereinafter referred to as first material).

In addition, 10 to 50% by weight of an additive comprising 1 to 20% by weight of aluminum sulfate, 1 to 20% by weight of calcium sulfate, 1 to 20% by weight of silica powder, and 10 to 80% by weight of a cement component, based on 100 parts by weight of the ash component. Provided is an inorganic material for greening and soil stabilization, wherein the inorganic material for greening and soil stabilization is mixed with 10 parts by weight or less of the ceramic powder. (Hereinafter, this is referred to as a second material.)

In addition, in the present invention, there is provided a thick layer base material seeding method comprising mixing soil with the above-mentioned first material and / or second material with water to produce slurry landslides, and attaching the slurry lands to the construction surface. do.

Moreover, in this invention, the soil stabilization method which consists of a step of voltage-voltage after mixing and stirring mud-like soil and said 1st material and / or 2nd material is provided.

When both the first material and the second material of the present invention are dispersed in water to form a slurry, the slurry shows thixotropic properties. In other words, when the slurry is stirred in the container and the stress is continuously applied, good fluidity is displayed. However, once attached to the normal surface, fluidity is lost at the moment of contact with the normal surface and adheres to the normal surface.

The first material of the present invention is required to have the following ingredients and additives, and the second material is formed by blending the first-described ceramic powder again.

In either of the first material and the second material, the ash component is a pozzolan-based material containing SiO ₂ , Al ₂ O ₃ , and CaO as main components, and has a hydration activity and reacts with water to induce hydration. Powder of substance is used.

Specifically, fly ash, incineration of paper sludge, blast furnace slug, etc. are mentioned, for example. Among these, as the fly ash, fly ash prescribed in JIS A6201 is easy to purchase and the material cost can be reduced, and as the ash sludge incineration material, the paper sludge obtained without using a chlorine-based bleaching agent in the papermaking process is used. The incineration ash is suitable because it contains MgO components, and the leaves of the vegetation that germinate and grow on the mounting surface become green according to the action of the MgO.

This component is dispersed in water in the form of a slurry in the preparation of a slurry, and at the same time, a hydration reaction occurs between coexisting water, and at least the surface portion thereof is a mineral hydration compound such as ettringite or calcium silicate hydrate. I call quickly and harden by myself.

If the soil coexists in this slurry, the above-mentioned hydrated compound of the mineral is produced in the state of attracting the soil particle itself, so that eventually, a single grain, a porous structure having a complex structure of a plurality of soil particles and the hydrated compound, is formed. Will be formed. In the process of forming the porous indentation, moisture in the soil is rapidly absorbed by the porous indentation and the curing of the reconstituting material itself is also progressed.

Therefore, the formed single grain is porous and absorbs moisture in the soil, unlike the conventional single grained state in which the soil particles are bonded to each other by a lamination, and thus the air permeability and water retention are good and the elasticity is also rich. do.

Next, the additive to be blended in the first and second materials of the present invention comprises aluminum sulfate, calcium sulfate, silica powder, and a cement component as essential components.

When the sulfate of the present invention is dispersed in water to form a slurry, it dissolves in water, functions as an electrolyte, forms etlinite among the components dispersed in the colloidal form, and promotes coagulation. . Thus, when soil coexists, polycondensation ions of aluminum are produced as a polymer during hydrolysis to produce aluminum hydroxide, which condenses as it attracts soil particles.

The ratio of this aluminum sulfate is set to 1-20 weight% with respect to the whole quantity of an additive. When the ratio is less than 1% by weight, the coagulation effect of the ash component and the formation effect of atlanzite are lowered, so that the soil can not be stabilized quickly or absorb moisture in the soil effectively. The degree of mixing effect reaches saturation, but causes cost up in vain.

Calcium sulfate dissolves in water to dissociate and cause agglomeration of ash components in the same manner as in the case of aluminum sulfate, and reacts with ash components to produce etlinite or calcium silicate hydrate.

The ratio of this calcium sulfate is set to 1-20 weight% with respect to the whole quantity of an additive. When this ratio is less than 1% by weight, the above-mentioned effect is not sufficiently exhibited. On the contrary, when the ratio is more than 20% by weight, calcium lactate itself is a stone component, so that the prepared slurry starts to harden and harden, and the installation is performed. Because it is hard to lose.

When the material of the present invention is single-inserted and solidified, the silica powder is dispersed in the single-piece and contributes to maintaining strength.

Although the silica powder used is not specifically limited, For example, fumed silica, a natural deposited layer, etc. can be mentioned as a suitable thing. Particularly, since fumed silica is amorphous, it is useful because it can be combined with the ash component or the cement component described below to increase the strength of the single grain while vigorously crystallizing in the process of preparing the slurry.

The proportion of the silica powder is set at 1 to 20% by weight based on the total amount of the additive. If the ratio is less than 1% by weight, the above-described strength improvement effect is not sufficiently exhibited. On the contrary, even when the ratio is more than 20% by weight, the compounding effect reaches saturation and causes a cost-up in vain.

The cement component is blended for securing the strength of the mounting surface formed by condensing the slurry soil in a short time, for example, when the prepared slurry land is attached to a legal surface.

Although it does not specifically limit as this cement component, For example, portland cement, crude steel cement used as a construction material for emergency use, etc. are suitable.

The ratio of this cement component is set to 10 to 80 weight% with respect to whole quantity of an additive. If the ratio is less than 10% by weight, the above-mentioned effects are not sufficiently exhibited. On the contrary, if the ratio is more than 80% by weight, the condensation of the slurry after the construction will be excessively advanced, resulting in a very hard construction surface (mounting surface). For example, when the vegetation material is added, the germination and growth of the vegetation material are disturbed.

Both the first material and the second material of the present invention are made by mixing 10 to 50 parts by weight of the additive based on 100 parts by weight of the reconstituted component. When the mixing ratio of the additive is less than 10 parts by weight, rapid incorporation and solidification of the prepared slurry does not progress, and when it is more than 50 parts by weight, the cement component is relatively increased, resulting in excessively hard construction surface and construction soil. In any case, it is not suitable as a material for greening and stabilization of muddy soil, which is not lost by rainwater, does not cause frostbite deterioration, and vegetation material germinates on the mounting surface.

In the second material, the ceramic powder is further blended into the first material as an essential component.

The ceramic powder is not involved in the above-mentioned hydration reaction or the formation of porous single grains, but the ceramic powder is dispersed in the single grains formed because it is an aggregate of porous particles, thereby increasing the permeability and water retention of the single grains, and the seed. Increase the stickiness (活着 成). In addition, it plays a role in ensuring the long term efficacy of the fertilizer formulated in the land and creating an extremely good environment in the growth of vegetation. Moreover, since the said effect is exhibited also by a very small amount of compounding, it contributes to the cost down of manufacture.

Although it does not specifically limit as this ceramic powder, For example, the FB material (brand name) made from Filton International Co., Ltd. is suitable.

The compounding quantity of a ceramic powder is set to 10 weight part or less with respect to 100 weight part of reconstituting components. It is because when this compounding quantity is more than 10 weight part, it becomes difficult to generate | occur | produce a rapid aggregation and solidification of a slurry after construction, and also the intensity | strength of the single part itself starts to arise, and it causes cost up.

The thick substrate type seeding method of the present invention is carried out as follows.

First, water, loam, seeds, curing agents, fertilizers, soil improving agents, accelerators and the like are added into a tank of a predetermined volume, followed by stirring, and the present invention material is added thereto. At this time, the amount of water injected and the amount of soil are adjusted appropriately so as to have a viscosity suitable for installation. Thus, the whole is sufficiently stirred to form slurry slurry for mounting.

The obtained slurry loam is attached to a predetermined index, for example, a surface, and is attached thereto, thereby completing the construction.

Simultaneously with the installation, the land loses its liquidity and adheres firmly to the surface, and the land is rapidly consolidated, and the whole solidifies with elasticity.

Next, the soil stabilization method of the present invention is carried out as follows.

That is, after mixing and stirring a predetermined amount of the target mud soil and the material of the present invention, the whole voltage may be applied.

In the process of mixing and stirring, the above-described hydration reaction of the material of the present invention proceeds, and the water in the mud soil is rapidly absorbed, so that the mud soil becomes solidified and solidified and the whole becomes high strength. In other words, the mud soil is stabilized in a short time.

Best Mode for Carrying Out the Invention

Example 1

1.6 kg of aluminum sulfate (manufactured by Nippon Light Metal Co., Ltd.), 1.6 kg of calcium sulfate (manufactured by Int'l Trading Co., Ltd.), 1.6 kg of fumed silica (manufactured by Japan and overseas), and crude cement (manufactured by Juwoo Cement Co., Ltd.) 11.2 kg were mixed to prepare an additive having a total weight of 16 kg. That is, this additive consists of a composition which is 10 weight% of aluminum sulfate, 10 weight% of calcium sulfate, 10 weight% of fumed silica, and 70 weight% of crude steel cement.

Subsequently, this additive was uniformly mixed with 64 kg of sludge material (manufactured by Shin-Kanja Paper Co., Ltd.) to prepare 80 kg of the first material of the present invention.

That is, this 1st material mixes 25 weight part of said additives with respect to 100 weight part of sludge materials.

Into a tank having a capacity of 3800 l, water, loam, seeds, curing agents and fertilizer were added and stirred, and 80 kg of the first material described above was added and stirred to prepare slurry loam. This slurry subsoil was mounted on a plain surface having an inclination angle of 30 ° and an area of about 80 m 3. The construction work was carried out in the middle of drizzle, but the degree of sticking to the surface by the incorporation effect was good, and its immediate effect was exerted, and the work was completed without losing the land.

After the construction work, it was quite strong from the ground, but the following day, when the mounting surface was observed, the loss of the land was not found.

For comparison, the construction using the conventional slurry soil was also performed, but the soil was lost from the mounting surface, and the wire mesh was completely exposed.

After 4 weeks of installation, the mounting surface was observed, and germinated on the mounting surface, and the land was maintained in the same state as when it was mounted. However, conventionally, the mounting surface of the land was germinated from the cracked place, and the state of the germination was rare.

In addition, when the mounting surface was observed after midwinter, the growing leaves are concentrated and maintain the same condition as when mounting.

Example 2

The slurry land used in Example 1 was attached to the strand which repeats exposure and submersion at the level of water level in a sulfurous rock dam. The mounting area was 16 m 3. The next day, the dam level rose and covered the mounting surface, but the land remained the same as it was without loss.

Example 3

Part of the Seoksucheon embankment wet due to rainy season was selected as a test site. The test site had an inclination angle of about 30 °, a width of 100 m and a height of about 8 m, and the operator could not climb it.

The first material used in Example 1 was scattered over the soil at this test location so as to be 2% by weight with respect to the surface soil, and the voltage was applied while stirring the whole without leaving it as a grain. During the stirring, the test site was in a state where the operator could climb, and after 1 hour of stirring, a 15-ton bulldozer was run at the construction site. It was stable enough.

Since then, the lawn mowing operation that mowed the surface of the test site progressed smoothly. The roots of the grass were also good, and no loss of turf due to rainfall was found.

Example 4

Pond water flowed when it rained, and the pond which was lost by the water surface was selected as the construction site, and road work was carried out there.

The outflowing head furnace was collected, the above-mentioned first material was put therein, the whole was stirred, and the head furnace was then returned to voltage after being treated to the normal surface.

After construction, the stairway was stabilized to the point that it would not be lost even if it rained. In addition, after several weeks, vegetation was grown.

Example 5

In addition to 80 kg of the first material produced in Example 1, 3.2 kg of an FB material (trade name, manufactured by Filton International) was added and stirred to prepare 100 kg of the second material of the invention.

That is, this 2nd material mixes 25 weight part of additives and 5th weight part of FB with respect to 100 weight part of sludge materials.

Into a tank having a capacity of 1200 l, water, loam, seeds, curing agent and fertilizer were added and stirred, and 30 kg of the second material was added again, followed by stirring to prepare slurry loam. This slurry land was attached to the normal surface of the inclination-angle 25 degree so that it might become thickness 1cm and 3cm.

As in the case of Example 1, the loss of the loam did not occur even in the presence of rainfall, and the germination was also good.

Moreover, the water retention property for the mounting surface was better than that in the first embodiment.

The present invention relates to an inorganic material for greening and soil stabilization, and to a thick layer seed seeding method or a soil stabilization method using the same. It is used in the construction method and shows very good greening ability on the mounting surface such as the surface, and when applied to the mud soil, the mud soil has high strength in a short time. The present invention relates to inorganic materials for greening and soil stabilization that can solidify.

The material for greening and soil stabilization of the present invention is not lost at all in normal rainfall when a time of about 1 hour elapses after installation. In addition, if the inclined surface is a normal slope of about 35 degrees, it is possible to mount the rear substrate type without using a wire mesh or a net. In addition, since the frostbite deterioration does not occur, the greening of the cold region can be performed. Also, wet muddy soil can be stabilized by solidifying it in a short time.

In addition, since it is not lost in water, it is possible to transplant and attach water plants to watersides such as lakes and hydrophilic parks, thereby contributing to environmental cleanup and environmental preservation.

In the material of the present invention, since a hydrated compound is produced by a hydration reaction between components, which quickly forms a porous unit containing soil particles as a nucleus, the unit is rich in breathability and water retention, and The holding power is also good, and it is possible to provide a very suitable environment by germination and growth of the added vegetation material.

In the case of the second material, the ceramic powder, which is an aggregate of porous particles, is further blended, so that water retention and water permeability are further improved, seed lubrication is excellent, and fertilizer and other effects can be ensured for a long time. .

Claims (7)

10 to 50 parts by weight of an additive comprising 1 to 20% by weight of aluminum sulfate, 1 to 20% by weight of calcium sulfate, 1 to 20% by weight of silica powder and 10 to 80% by weight of cement components are mixed Greening and soil stabilization inorganic material. 10 to 50 parts by weight of an additive comprising 1 to 20% by weight of aluminum sulfate, 1 to 20% by weight of calcium sulfate, 1 to 20% by weight of silica powder, and 10 to 80% by weight of cement components and ceramics An inorganic material for greening and soil stabilization, in which 10 parts by weight or less of powder is mixed. The inorganic material for greening and soil stabilization according to claim 1 or 2, wherein the ash component is an incineration ash of fly ash or paper sludge. The inorganic material for greening and soil stabilization according to claim 1 or 2, wherein the silica powder is fumed silica. The inorganic material for greening and soil stabilization according to claim 2, wherein the ceramic powder is an FB material (trade name, manufactured by Filton International). A thick layer substrate seeding method comprising the steps of mixing a soil, a mineral material for greening and stabilizing according to any one of claims 1 to 5, and water to produce a slurry soil, and attaching the slurry soil to a construction surface. A soil stabilization method comprising a step of mixing and stirring mud soil and greening and soil stabilizing inorganic materials according to any one of claims 1 to 5, followed by voltage.