KR20020042771A - Composition for stabilization and improvement of soil - Google Patents

Abstract

PURPOSE: Provided is a composition for stabilizing and improving soil, which can keep the stabilized strength for a long time in all the soil and has air-permeability and water-permeability, therefore, gives the natural environment. CONSTITUTION: The composition comprises 30-50pts.wt. of SiO2, 20-40pts.wt. of CaO, 15-30pts.wt. of Al2O3, 5-10pts.wt. of SO3, and additionally 1-5pts.wt. of MgO, 1-5pts.wt. of Fe2O3, 0.1-3pts.wt. of TiO2, 0.01-1pts.wt. of K2O, 0.1-1pts.wt. of Na2O, 0.1-1pts.wt. of P2O5, and a trace material comprising BaO, CuO, MnO, ZnO, ZrO2, 0.1-10pts.wt. of a polymeric organic coagulant, 0.1-10pts.wt. of peat moss, 0.1-3pts.wt. of ironite, and 0.1-1pts.wt. of rare earth.

Description

Composition for stabilization and improvement of soil}

The present invention relates to a composition for stabilizing and improving soil, and more particularly, to a soil improving agent capable of germinating and growing plants while expressing strength corresponding to conventional solidifying agents.

Hardeners or soils for the purpose of reinforcing soft soils such as wetlands, ponds, streams, shores, reclaimed land or dredged landfills with high water content, solidification of wastes containing constant sludge or heavy metals, and improvement of slopes (surfaces) or retaining walls. Improvers and the like are used.

In some cases, the use of water and sewage sludge is used for the manufacture of soil modifiers, but mainly cement or lime systems. However, in the case of the lime or cement system, the purpose of improving the strength of the soft ground can be met, but there are the following disadvantages.

First, due to the large amount of lime, the soil becomes strongly alkaline and the growth of plants is impossible due to continuous alkali interference. Secondly, depending on chemical reactions, the permeability deteriorates and the plant dies. Third, solidification may take a long time, and solidification is inhibited in soils with high organic content. Fourth, in the case of cement-based may include heavy metals such as hexavalent chromium, it is impossible to operate heavy air immediately after construction.

Accordingly, an object of the present invention is to solve the problems of the prior art described above, applicable to all soil types, while ensuring the strength required for the stability of the soil, while preventing the alkalinity of the soil, improve water permeability and improve nature-friendly It is to provide a composition for soil stabilization and improvement capable of the emergence and growth of plants by forming the ground.

Figure 1a is a graph showing the load-settling correlation curve in the ground (soft ground),

Figure 1b is a graph showing the load-settlement correlation curve in the ground improved by the composition of the present invention,

2 is a graph showing a particle size distribution curve for each ground;

Figure 3a is a graph showing the shear stress-displacement correlation curve of the base;

Figure 3b is a graph showing the shear stress-displacement correlation curve of the improved ground,

Figure 3c is a graph comparing the breakdown envelope by ground,

4 is a graph showing a compressive stress-strain correlation curve by soil uniaxial compression test;

5 is a graph comparing the uniaxial compressive strength of the composition of the present invention and the conventional composition,

6 is a graph showing the uniaxial compressive strength according to the amount of the present composition (wherein C: clay, M: silt, D: sandy weathered soil, + day: curing days),

7 is a graph showing the total appearance rate of the red clover and tol pesqueu according to the amount of the present invention in the field soil,

8 is a graph showing the total appearance rate of the red clover and tol pesqueu according to the amount of the present invention in reclaimed soil;

Figure 9 is a graph comparing the appearance of the red clover for the present composition and the conventional composition.

10 is a photograph of a golf practice slope reinforcement construction to which the present invention composition is applied,

Figure 11 is a photograph of the national industrial complex composition construction applying the present invention composition,

12 is a photograph of a farmland readjustment applying the composition of the present invention,

13 is a photograph of the seedling composition construction to which the present invention composition is applied,

14 is a photograph of the slope reinforcement to which the present invention composition is applied,

15 is a photograph of the bentonite treatment work applying the present invention composition,

Figure 16 is a photograph of the park pond maintenance work applying the present invention composition,

17 is a photograph of the construction of the construction road to which the present invention composition is applied,

18 is a photograph of a farm road slope restoration construction to which the present invention composition is applied,

19 is a photograph of the waste clay improvement construction to which the present invention composition is applied,

20 is a photograph of a concrete water pipe foundation improvement construction to which the present invention composition is applied,

Figure 21 is a photograph of the slope-based construction to which the present invention composition is applied.

In order to achieve the above object, the present invention is for soil stability and improvement comprising 30 to 50 parts by weight of SiO ₂ , 20 to 40 parts by weight of CaO, 15 to 30 parts by weight of Al ₂ O ₃ and 5 to 10 parts by weight of SO ₃ To provide a composition. The composition of the present invention contains the above components as a main component, 1 to 5 parts by weight of MgO, 1 to 5 parts by weight of Fe ₂ O ₃ , 0.1 to 3 parts by weight of TiO _2, 0.1 to 1 parts by weight of K ₂ O, and Na ₂ O 0.1 It may further comprise a trace material consisting of ~ 1 part by weight, 0.1 to 1 part by weight of P ₂ O ₅ and BaO, CuO, MnO, ZnO, ZrO ₂ .

The composition of the present invention may further include an additive to promote the function and specifically the appearance and growth of plants. For example, the additive is a polymer organic flocculant, ironite fertilizer (Ironite), peat moss, composite rare earth, etc., and the content of each is 0.1 to 10 parts by weight of the polymer organic flocculant, 0.1 to 10 parts by weight of the peat moss, and the iron powder phase. 0.1-3 weight part of fertilizers, and 0.1-1 weight part of complex rare earths.

The polymer organic flocculant is added for the purpose of promoting ion exchange reaction, neutralizing contamination, assisting even action of intermediate material, decreasing water content, controlling pH and promoting vegetation, and absorbing heavy metals through flocculation and cation exchange. It enhances the binding strength of each component due to the adhesive property of adhesive properties, and also acts to neutralize the strong alkaline soil. The material which can be used as the polymer organic flocculant is not particularly limited, but for example, a water-soluble polyacrylic compound can be used.

Improving the soil using the composition of the present invention described above it is possible to germinate and grow plants.

The principle of improving the soft ground of the composition of the present invention can be explained by the hydration reaction and pozzolanic reaction. When the composition of the present invention is mixed with soil, the porous component absorbs moisture, organic matter, odor, and the like, and then aluminic acid lactate hydrate is produced by hydration reaction. Ethrinzite reduces the water content of the soil, densifies solids, and forms harmful heavy metals and organics by ion exchange and expansion while forming needle crystals to fill the gaps. At the same time, the pozzolanic reaction occurs between the solidifying agent hydrate and the granule minerals, and lime silicate is produced over a long period of time, thereby exhibiting the strength and durability of the ground.

It is a feature of the present invention to provide the strength necessary for the stabilization of the soil, which is a basic function of hardeners. Unlike conventional lime or cement systems, which rely only on chemical reactions, the compositions of the present invention contain large amounts of pozzolanic reactants, silicon dioxide (SiO ₂ ) and aluminum oxide (Al ₂ O ₃ ), and Sulfur trioxide (SO ₃ ), which effectively produces linzite, is also higher than that of lime or cement, so that the hydration and pozzolanic reactions can be continuously promoted to maintain stable strength of the soil for a long time.

The most important feature of the present invention is to provide an environment in which plants can grow. Compared with the conventional lime or cement system, the composition of the present invention has a low content of CaO and prevents the continuous alkalizing of the soil due to the soil-like components. Therefore, the pH of the soil is high initially, but finally neutralized and restored to natural soil. In addition, the composition of the present invention contains a large amount of inorganic substances beneficial to the growth of the plant, the improved soil is a resilient porous structure is progressed in the granulation to improve the physical properties of the soil, such as water permeability, drainage, breathability, water retention, maintenance To provide favorable conditions for the growth of plants. Thus, over time, the improved soil is assimilated with the surrounding soil, leaving the artificial solidification and changing to natural ground. In this way, the soil that can be assimilated and vegetated has the effect of increasing the strength of the ground by the support of plants, and is also very important in the greening and landscaping aspects.

Comparing the composition according to the present invention with the conventional cement-based, lime-based composition is shown in Table 1. Conventional products are difficult or impossible to solidify in soils with high organic content, but the composition of the present invention is not only general soft ground, but also high-quality organic soil, waste mud, peat, mountain, agricultural land, reclaimed land, etc. Can be used effectively on soil. The composition of the present invention can express a high initial strength even with a small amount of addition compared to the conventional solidifying agent to maintain the strength over a long period by the production of a special hydrate. Lime or cement is high in strength but poor in permeability and causes strong alkalinity, making it impossible to grow plants. On the other hand, the composition of the present invention has strength close to that of lime or cement, while permeability and drainage are good due to the shortening of soil particles, and the soil pH is gradually neutralized from alkaline to vegetation after improvement. In addition, since the granulation is progressed by the composition of the present invention and the entire soil is uniformized, it is possible to run the airflow even during the operation, rework after construction is easy, and reuse of the residual soil is also possible. In addition, the composition of the present invention is free from secondary pollution due to alkalinization of the effluent.

Comparison of the Invention Composition with Conventional Lime and Cement Compositions division Invention Composition Lime system Cement chief ingredient SiO ₂ , Al ₂ O ₃ , CaO, SO ₃ CaO CaO Characteristic -Accompanied by chemical reaction and physical absorption reaction-Easy to bury by homogenization and homogenization-Reusable xanthoic soil-Assimilation to natural soil state -Rapidly exothermic reaction with moisture, which reduces the water content-Special handling as dangerous goods-Shaking after contact with moisture after improvement-Long-time solidification reaction-Secondary mixing is necessary due to microcalcification during construction-Concerns of spilled white water during rain -Supply cost and low price-Interfering with hydration reaction by organic material-Impossible to solidify in soil with high organic content-Dry shrinkage when mixed in large quantities-Heavy metals such as hexavalent chromium Permeability -High permeability and drainage due to isolation -Impaired permeability makes plant growth impossible pH -Neutralization is possible and the vegetation is possible-No secondary pollution due to effluent Alkaline disturbance persists, making plant growth impossible burglar -Strength close to lime and cement-Can operate heavy air immediately after improvement -Concrete shoes-immediately impossible to operate mid-stream

Therefore, the composition according to the present invention is improved in soft ground, such as wetlands, ponds, rivers, shores, reclaimed land and dredging landfill with high water content; Solidification of wastewater containing sludge or heavy metals or general industrial waste; Slope trimming or improvement of retaining wall; The creation of roads, parks and sidewalks; It can be widely used for farmland, roadbed, roadbed, water pipe, water pipe, golf course improvement.

Hereinafter, the specific configuration and operation of the present invention will be described in more detail with reference to Examples.

Example 1: Preparation of Soil Modifier

The soil improver of the present invention was prepared by mixing SiO ₂ , CaO, Al ₂ O ₃ , SO _3, etc. in an appropriate amount, and the results of the component analysis requested by the Korea Testing Institute are shown in Table 2.

Component Analysis of the Compositions of the Invention ingredient unit Preparation Example 1 Preparation Example 2 Test Methods SiO ₂ % 41.6 33.4 KS E 3807-93 Al ₂ O ₃ % 24.2 14.9 KS E 3807-93 CaO % 20.6 31.1 KS E 3807-93 SO ₃ % 5.50 6.14 KS E 3807-93 MgO % 2.14 9.39 KS E 3807-93 (I.C.P) Fe ₂ O ₃ % 2.52 1.41 KS E 3807-93 (I.C.P) TiO ₂ % 1.20 1.02 KS E 3807-93 (I.C.P) K ₂ O % 0.41 0.31 KS E 3807-93 (I.C.P) Na ₂ O % 0.61 0.93 KS E 3807-93 (I.C.P) P ₂ O ₅ % 0.61 0.25 KS E 3807-93 (I.C.P) BaO % 0.11 - KS E 3807-93 (I.C.P) CuO % 0.05 - KS E 3807-93 (I.C.P) MnO % 0.04 - KS E 3807-93 (I.C.P) ZnO % 0.03 - KS E 3807-93 (I.C.P) ZrO ₂ % 0.04 - KS E 3807-93 (I.C.P)

Example 2: Plate loading test

The ground used up to this embodiment and the following Example 9 is a construction site for the metropolitan waterworks of Sacheon-gun, Gyeongsangnam-do, where the soft ground is distributed about 6 m or more from the surface of the ground and is soft enough to prevent vehicles and equipment from entering.

Secure the site for testing the performance of the composition of the present invention on such grounds and spray 45 t / 5 t (spraying 5 t of the composition of the present invention to a soil 3 m depth of 3 m × 5 m area and 6 m of soft layer thickness) An improved ground was formed by the composition of the present invention, and the following tests were performed at the time point three weeks after the test construction.

Plate load test (PBT) is a test to determine the strength of the ground by loading the soil in the original position. It is a test to estimate the allowable bearing capacity, the ground reaction coefficient, and the deformation coefficient from the ground load-settlement relationship.

The plate loading test was carried out in accordance with KS F 2310 as a test to determine the bearing capacity by mounting a loading plate in accordance with the elevation to which the foundation is to be installed and by gradually applying a load and measuring the corresponding settlement amount by a dial gauge. For the analysis of the test, the yield and ultimate loads were calculated using the PS curve graph and the LogP-LogS graph, and then the allowable bearing capacity of the investigated ground was evaluated.

The PS curve analysis method is to determine the load as the ultimate load by plotting the load (P) and settlement amount (S) for each loading stage on the grid graph paper and increasing the settlement amount without increasing the load amount.The LogP-LogS curve analysis method The load and settlement amount by loading stage are plotted on the log-log graph paper to determine the yield load at the point where the curve is most inflected. The results for each soil are as shown in Figs. 1a and 1b. Table 3 is as follows.

Ultimate load, yield load and settlement by ground division Yield Load Strength (t / ㎡) Yield at Yield (mm) Ultimate load strength (t / ㎡) Ultimate settlement (mm) Ground 26.2 41.5 39.61 81.9 Improved ground 53.7 7.9 80.64 17.7

According to the results, the ground improved by the addition of the composition of the present invention increased the load strength by more than two times than the ground, which is a soft ground, the settlement amount was reduced to 1/4 to confirm the increase of the strength of the ground by the composition of the present invention.

Example 3 Measurement of Water Content, Specific Gravity and Unit Weight

The water content test is to find the water content that is the basis of soil properties. The soil water content is the ratio of the weight of dry soil and water removed in the wet soil by the drying furnace at 110 ± 5 ℃. In this example, the water content test of the soil was conducted according to KS F 2306.

The specific gravity of the soil particles is the average specific gravity of the soil particle group constituting the soil mass, and generally refers to the ratio of the unit weight of the soil particles to the unit weight of the distilled water at 4 ° C. The specific gravity of soil particles is the basic data to understand the basic properties of the soil, such as used to determine the gap ratio, saturation, firmness, and organic content. Specific gravity test in this example was carried out according to the standard of KS F 2308.

Water content, specific gravity and unit weight by ground division Water content (%) importance Unit weight (t / ㎡) Ground 47.44 2.592 1.788 Improved ground 42.14 2.636 1.847

As shown in Table 4, the ground improved by the composition of the present invention, the water content is reduced, the specific gravity and the unit weight increased compared to the soft ground. From these results, the improved ground became dense as the moisture in the soil decreased through the hydration reaction, and thus the strength of the ground increased.

Example 4: particle size distribution test

The particle size distribution test is carried out to find out the size of the granules constituting the soil and the ratio to the total weight of the granules. In KSF, "particle size" is defined as the weight percentage of the distribution of soil particle diameters. The test method shall be conducted by sieve analysis and larger than 0.075 mm by sedimentation analysis by hydrometer. The results of the particle size test are generally represented by particle size distribution curves. From the results of the particle size test, the soil can be classified engineeringally using uniform classification (U.S.C.S).

The particle size distribution curve is a poor particle size distribution when most of the soil particles are of similar size, and a good particle size distribution when the soil particles are evenly distributed throughout the range, and a combination of two or more uniformly distributed soils. In this case, it is called empty degree. If the particle size distribution is good, the uniformity factor is about 4 for gravel, about 6 or more for sand, and the coefficient of curvature is 1-3. Here, the uniformity coefficient (C _u ) is D ₆₀ / D ₁₀ (D: diameter, subscript: passing percentage), and the curvature coefficient (C _c ) is D ₃₀ ² / (D ₆₀ × D ₁₀ ).

In this example, the soil particle size distribution test was performed according to KS F 2302 and 2309. The results of the particle size distribution by sieving and hydrometer analysis are shown in Figure 2 and Table 5.

Particle Size Distribution by Ground Ground Improved ground Particle diameter (mm) Percent Passed (%) Particle diameter (mm) Percent Passed (%) 19 100 19 100 9.5 100 9.5 99.39 4.75 99.4 4.75 95.89 2 97.64 2 84.59 0.84 95.63 0.84 79.57 0.42 90.37 0.42 74.19 0.25 81.72 0.25 69.02 0.105 73.92 0.105 60.69 0.074 67.34 0.074 58.59 0.054 44.79 0.0522 26.71 0.039 36.76 0.0374 23.37 0.0251 29.66 0.0239 19.81 0.0147 23.17 0.0143 8.24 0.0105 20.08 0.0102 6.01 0.0075 17.3 0.0072 5.79 0.0038 13.9 0.0036 5.57 0.0016 9.27 0.0015 5.34

According to the results of the particle size distribution test, from the results in Table 5, the effective particle diameter (D ₁₀ ) of the original ground (soft ground) sample is 0.0018 mm, the uniformity coefficient (C _u ) is 37.06, the curvature coefficient (C _c ) is 5.16, The particle size distribution was poor. The base is a fine grain with 67.34% or more pass rate of # 200 sieve (0.074 mm), and the fine grain determines the major engineering characteristics besides the particle size distribution. Therefore, when judged by the liquid, plastic limit, and plasticity index of the raw ground sample calculated by the plasticity chart, the raw ground can be classified into CL (small plastic clay) by the uniform classification method.

The effective particle diameter (D ₁₀ ) of the improved ground sample according to the composition of the present invention was 0.0156 mm, the uniformity coefficient (C _u ) was 5.19, the curvature coefficient (C _c ) was 2.05, and the particle size distribution was good. The # 200 sieve passes 58.59% of fine grained soil, and the improved ground can be classified as ML & OL (small plastic silt) in the engineering classification by the uniform classification method.

As shown in Fig. 2, when comparing the particle size distribution of the improved ground sample and the original ground sample, the percentage of passage of the improved ground sample at the same particle diameter is smaller than that of the original ground sample. This means that the composition of the raw alumina composed of fine grains changed structurally well as the composition of the present invention was mixed with the raw alumina. Therefore, the ground improved by the composition of the present invention was confirmed that the particle size distribution is good and structurally stable.

Example 5: Softness Test

When water is added to the viscous soil, it is in a flow state close to the liquid. On the contrary, when the water content decreases due to drying, it gradually becomes a sintered state, and when further dried, it becomes a solid state from a semi-solid state. The water content of the transition point that causes the change in the flow, plasticity, and semisolid state according to the water content change of the soil is called liquid limit, plastic limit, and shrinkage limit, respectively. Atterberge) is called the limit, and each index is

Plasticity Index ( I _p ) = Liquid Limit (ω _L ,%)-Plasticity Limit (ω _p ,%)

Liquid index ( I _L ) = [natural function ratio (ω,%)-plastic limit] / plastic index ( I _p )

Hardness Index ( I _c ) = [Liquid Limit (ω _L ,%)-Natural Function Ratio (ω,%)] / Plasticity Index ( I _p )

Here, the liquid index indicates the degree of fluidization, and the closer to 0, the better the soil condition. The hardness index indicates the relative hardness or safety of viscous soils. If the hardness index is ≥ 1, the soil is stable. If the hardness index is ≤ 0, the soil is unstable.

Yearly hardness division Liquid limit (%) Firing limit (%) Plasticity Index I _p Liquid Index I _L Hardness Index I _c Ground 27.54 18.50 9.04 3.20 -2.20 Improved ground 38.30 34.14 4.16 1.92 0.92

Table 6 shows the results of the soil hardness test, and the ground improved by the composition of the present invention increased the liquid limit and the plastic limit by about 1.5 and 2 times, respectively, and the plasticity index and the liquid index were 1/2. In particular, it was confirmed that the hardened index was found to be close to 1, and that the improved ground recovered its stable state.

Example 6: Direct Shear Test

The strength of a material refers to the resistance of the material when it is deformed under deformation due to external force. Soil deformation is caused by shear stress in the active plane. Therefore, the soil strength is the maximum resistance generated by shearing at the active surface, which is defined as the shear strength of the soil.

The Direct Shear Test is a relatively simple test to find the soil strength constant (internal friction angle Ø, cohesion c). The results are used for the calculation of earth pressure, stability calculation of slope, or calculation of bearing capacity of foundation.

Soil direct shear test in this example was performed according to the standard of KS-F 2343 or KS-F 2434. After transporting the undisturbed ground (soft ground) sample and the improved ground sample by the composition of the present invention to the laboratory using the sample extraction rod in the field, each sample was molded so as not to be disturbed and placed in a shear box, and the vertical restraint pressure was Shear strength was measured by applying step ˜4.

3A and 3B show the results of a direct shear test conducted in accordance with the standard of KS-F 2434 under a loading speed of 1 mm / min, non-consolidation, and undrained (UU) conditions. The correlation of the displacement is shown.

FIG. 3C is a graph obtained by plotting a linear relational equation by plotting the maximum shear stress, that is, the shear strength τ _f , for each vertical stress, based on the results of FIGS. 3A and 3B, wherein the slope of the straight line is an internal friction angle Ø. The intercept value is the adhesive force (c). The results are summarized in Table 7.

Strength Constants by Ground division Adhesive force c (t / ㎡) Internal friction angle Ø Ground 1.0 5.14 Improved ground 0.9 36.2

According to the above results, the improved ground by the composition of the present invention showed very large shear strength under the same stress as compared to the original ground. While there was no difference in adhesive strength for each ground, the internal friction angle was remarkably increased, which means that the strength of the ground by the composition of the present invention was due to the increase in the internal friction angle.

Example 7: Uniaxial Compression Test

Uniaxial compression tests are performed to determine the uniaxial compressive strength and sensitivity of soil. The uniaxial compressive strength of soil is the maximum compressive stress of specimens without lateral pressure. As the compression method of the test, it adopts the strain control type which can obtain the shear strength quickly and simply. In this example, the uniaxial compression test was performed according to the standard of KS F 2314. The loading speed was adjusted to 1% / min and the ratio of diameter and length of the specimen was 1: 2.

4 is a graph showing the correlation between compressive stress and axial strain for each ground, where the uniaxial compressive strength ( q _u ) is the maximum compressive stress, and the strain coefficient is a straight line with a stress up to 1/2 of the uniaxial compressive strength. Assuming stress / strain at that point. As shown in FIG. 4, in the case of the base, there was no break point, and as the load increased, the axial strain increased by 15% or more, while in the improved ground according to the composition of the present invention, there was a clear break point at 5.6% of the axial strain. As shown in Table 8, the uniaxial compressive strength of the improved ground was increased by about 7 times compared to the original ground, and thus it was confirmed that the compressive strength was greatly improved by the composition of the present invention.

Uniaxial compressive strength and deformation coefficient division Uniaxial compressive strength (kg / ㎠) Strain Factor (kg / ㎠) Ground 0.038 2.11 Improved ground 0.265 5.14

On the other hand, the composition of the present invention and the conventional soil improver was compared. The mixed soil containing each modifier in a thin wall tube was divided into arbitrary unit weights, separated by a sample extractor, and wet-cured in a constant temperature water bath, and then the uniaxial compressive strength was measured according to the standard of KS F 2314. 5 is a graph comparing the uniaxial compressive strength of the composition of the present invention and the conventional composition, the uniaxial compressive strength of the improved ground by the composition of the present invention in the same composition appeared up to about 2 times higher than the conventional composition.

Figure 6 is a graph showing the uniaxial compressive strength according to the amount of the composition of the present invention, the result of the test on the ground of high water content ratio of the optimum addition amount of the present invention was 10%, but in the field test results of high strength even about 5% Indicated.

Example 8: Permeability Test

The process of consolidation can be called a mechanism by the discharge of pore water in the ground. The discharge of the pore water is determined by the permeability coefficient of the ground, the larger the permeability coefficient, that is, the faster the discharge of the pore water, the faster the consolidation can be formed to form a stable engineering ground.

Permeability test in this example was carried out variable variable permeability test by forming each sample to be carried on the specimen. In the method of rough water level permeation test, the initial level h ₁ and the final head h ₂ of the stand pipe were determined in advance, and the time when the level dropped from h ₁ to h ₂ was measured with a stopwatch. After repeating this operation several times and confirming that the measurement time was constant, each permeability coefficient was calculated and the average value was calculated as the permeability coefficient for the sample.

Table 9 shows the permeability coefficients of the improved soils significantly higher than those of the original soils as a result of the ground permeability test. The reason why the coefficient of permeability is greatly increased is that the particles of raw soil composed of fine grains are structurally stably rearranged by the composition according to the present invention. Therefore, the composition of the present invention formed a stable ground by improving the permeability of the soft ground.

Permeability Per Ground division Permeability coefficient (cm / sec) Ground 3.129 × 10 ^-6 Improved ground 1.662 × 10 ^-4

Example 9: Heavy Metal Content Test

Table 10 shows the heavy metal content of each ground measured by the Soil Pollution Process Test at the Korea Testing Institute. Mercury (Hg), hexavalent chromium (Cr ⁶⁺ ), cyanide (CN), organophosphorus, etc. were not detected in both the base and improved grounds. Rather less was detected. The content of arsenic (As) and cadmium (Cd) was increased in the improved ground than the ground, but the increase was very small and far below the soil pollution standards. Therefore, it was judged that there is no fear of soil contamination by mixing and stirring the composition of the present invention.

Heavy Metal Content by Soil division Pb (mg / kg) Cu (mg / kg) As (mg / kg) Hg (mg / kg) Cd (mg / kg) Cr ⁶⁺ (mg / kg) CN (mg / kg) Organic Phosphorus (mg / kg) Oil (mg / kg) Ground 8.660 1.155 0.536 N / A 0.130 N / A N / A N / A 0.155 Improved ground 2.21 0.400 1.650 N / A 0.320 N / A N / A N / A 0.954

Example 10 Emergence Test of Grass Seeds

In this example, the effect of the composition of the present invention on the appearance of plants was investigated. Grass species, Toll Fescue (Tall Fescue) and Red Clover (Red Clover) were used. The soils were collected from the practice forests of Jeonbuk University, paddy soils in Yeonhari, Jeonju-si, rice fields from Songcheon-dong, Jeonju-si, and reclaimed soils from reclaimed lands in Gyehwa-do, Buan-gun, Jeonbuk. The composition of the present invention is mixed with each ground soil from 0% to 9% (all weight%), and then 50 seeds of tolsque and red clover are placed in plastic flower beds (15 cm × 15 cm), and then divided into four batches and divided batches. It was wounded in a glass house. The survey items were Cumulative Emergence Percentage (CEP), Emergence Rate (ER), Maximum Emergence Rate (MER) and 50% Reach Date (Gt50). The following is the result of each soil test. The prevalence here is the percentage of seedlings actually present relative to germinating seeds.

1. Mountain soil

The appearance of red clover according to the amount of the present composition added in mountain soil No treatment One% 3% 6% 9% CGP (%) 64.5 90.0 91.0 86.8 83.5 GR 9.3 11.0 12.7 9.3 8.0 MGR 4.3 3.9 4.3 2.8 2.6 Gt50 (day) 6.3 7.9 7.7 8.4 8.1

Emergence of tolsfeques according to the amount of the present composition added in mountain soils No treatment One% 3% 6% 9% CGP (%) 79.0 85.5 87.7 82.6 73.8 GR 7.8 8.5 8.4 8.3 7.3 MGR 3.7 3.8 3.2 3.6 4.1 Gt50 (day) 9.1 9.3 9.5 9.4 9.0

As shown in Table 11, in the untreated areas of the mountain soil, the appearance rate and the appearance rate were lower than those in the paddy fields and the field soil, but the appearance rate and the appearance rate increased with the addition of the present composition. When 1% and 3% of the composition of the present invention was added, the red clover seeds showed a significant increase in total yield and 40% and 41%, respectively, compared to the untreated group. Appearance rate was also improved by 18% and 37% with the addition of 1% and 3%, respectively.

As shown in Table 12, in the case of the Tolsque seed, the appearance rate and the appearance rate increased with the addition of the composition of the present invention. When 1% and 3% of the composition of the present invention was added, the total emergence increased by 6.5% and 11%, respectively.

The maximum appearance rate did not differ with the addition of the composition of the present invention in both seeds. The number of days (Gt50) reaching 50% of the total emergence tended to be slightly delayed with the addition of the composition of the present invention, but there was no statistical significance.

In mountain soils, the effect of the addition of the composition of the present invention was better in red clover seeds than in tol pescue. In the amount of addition, the addition effect was most remarkable when 1% or 3% was added, whereas the addition of both seeds was inhibited by the addition of more than 9%.

2. Rice Soil

The appearance of red clover according to the amount of the present composition added in paddy soil No treatment One% 3% 6% 9% CGP (%) 90.4 88.5 92.6 91.2 90.8 GR 16.0 14.3 12.9 12.1 10.8 MGR 7.5 5.8 4.8 3.6 3.1 Gt50 (day) 5.2 5.6 6.5 6.9 7.9

Emergence of tolsfeques according to the amount of the composition of the present invention in paddy soil No treatment One% 3% 6% 9% CGP (%) 74.8 79.4 85.2 55.0 78.5 GR 7.3 7.6 8.9 6.0 7.4 MGR 3.4 3.6 6.1 4.0 2.6 Gt50 (day) 9.3 9.3 8.8 10.3 10.2

In the case of red clover in paddy soils, the effect of the addition of the composition of the present invention was not shown at all. However, in the case of the tolsque cue, both the appearance rate and the appearance rate increased with the addition of the composition of the present invention.

3. Soil

Emergence of Red Clover according to the Addition of the Composition of the Invention in Field Soil No treatment One% 3% 6% 9% CGP (%) 77.8 77.0 83.5 88.6 87.4 GR 11.6 10.3 11.7 8.4 8.9 MGR 5.6 4.7 6.9 1.7 2.4 Gt50 (day) 6.1 6.6 6.4 10.4 9.7

Emergence of tolsfeques according to the amount of the composition of the present invention in field soils No treatment One% 3% 6% 9% CGP (%) 82.5 91.5 86.5 91.5 90.5 GR 7.2 7.6 7.1 7.5 8.2 MGR 2.1 2.3 1.8 2.0 2.4 Gt50 (day) 10.7 11.3 11.7 11.6 10.4

As shown in Table 7, Table 15 and Table 16, in the case of the red clover in the soil, the total appearance rate increased but the appearance rate tended to decrease as the composition of the present invention was added. As a result, both the appearance rate and the speed of appearance improved.

4. Reclaimed Soil

The appearance of red clover according to the amount of the present composition added in reclaimed soil No treatment One% 3% 6% 9% CGP (%) 14.5 14.0 3.0 47.0 1.0 GR 0.7 0.6 0.2 2.3 0.1 MGR 0.18 0.17 0.05 0.61 0.03 Gt50 (day) 18.8 22.4 19.0 19.6 18.0

Appearance of Toll Pesqueu According to the Addition of the Composition of the Invention in Reclaimed Soil No treatment One% 3% 6% 9% CGP (%) 22.5 10.0 70.0 77.0 37.5 GR 1.0 0.5 3.4 4.2 2.0 MGR 0.4 0.2 0.7 0.9 0.5 Gt50 (day) 21.6 21.0 20.5 17.7 18.3

As shown in FIG. 8, Tables 17 and 18, in the reclaimed soil, the appearance rate was very low compared to other soils, but the appearance rate and appearance rate were greatly improved by adding the present composition. In particular, when 6% of the present composition was added, the total appearance rate, appearance rate, and maximum appearance rate of the red clover increased by 224%, 229%, and 239%, respectively, compared to the non-treated group. Speeds improved by 242%, 320% and 125%, respectively. In addition, in the case of the Tolsque Scue, the number of days (Gt50) reaching 50% of the total emergence rate was also shortened by about 4 days.

Taken together, the composition of the present invention improved the emergence power of the plant through the improvement of the soil, and the addition effect was remarkable in mountainous or reclaimed soils, especially when the soil was not developed. Red clover was better than Tolsqueu in mountain, paddy and field soils, but it was superior in Tolspeus in reclaimed soil. This is due to the strong appearance of tolsfeque in the soil (reclaimed land) where the red clover has a stronger appearance than tolsque in general soil, but the soil's physical properties are poor. In the amount of addition, it was not desirable to add the composition of the present invention to 6% or more in general soil (mountain, paddy field or field soil) and 9% or more in reclaimed soil.

Therefore, the composition of the present invention not only improves the germination or emergence of seeds, but also solubilizes fixed nutrients in the soil while containing a large amount of essential elements of the crop. Can be.

Example 11 Effect of Additives on the Appearance of Forage Seeds

This example investigated the effect of additives added to the composition of the present invention on the appearance of plants. Tolsque cue and red clover were used as the seedling species, and soils were collected from the practice forest soil of Chonbuk National University. 0 to 5% of the composition and the additive of the present invention were mixed with the ground soil, and the Tolsque cue and the red clover seeds were sown in plastic granules (15 cm x 15 cm) by 50 grains and placed in a germination chamber at 20 ° C. The survey items were 50% of the total appearance rate, appearance rate, maximum appearance rate, and total appearance rate. The following is the result of the appearance test for each participation system.

1. Polymer

Emergence of Red Clover with Addition of Polymer in Mountain Soils Polymer addition rate Rate of Composition of the Invention 0% One% 3% 5% 0% CEP (%) 47.0 53.0 77.0 89.5 ER 6.4 7.0 8.4 10.5 MER 2.1 2.2 2.5 4.6 Et50 (day) 7.6 8.2 9.2 8.1 0.3% CEP (%) 47.0 80.5 89.0 88.0 ER 6.4 9.7 14.1 14.4 MER 2.1 3.1 6.0 5.9 Et50 (day) 7.6 8.2 5.9 5.6 3.0% CEP (%) 47.0 26.0 83.0 88.0 ER 6.4 3.2 14.8 17.6 MER 2.1 1.1 7.1 10.2 Et50 (day) 7.6 8.6 5.1 4.5

Emergence of Tolsfeskew by Addition of Polymer in Mountain Soils Polymer addition rate Rate of Composition of the Invention 0% One% 3% 5% 0% CEP (%) 28.5 60.2 49.5 80.0 ER 2.9 5.9 4.0 7.7 MER 1.0 1.6 1.3 2.2 Et50 (day) 10.6 10.9 13.1 10.8 0.3% CEP (%) 28.5 41.5 78.5 72.0 ER 2.9 3.9 8.7 7.9 MER 1.0 1.0 2.7 3.3 Et50 (day) 10.6 11.6 9.4 9.3 3.0% CEP (%) 28.5 35.5 75.5 80.5 ER 2.9 3.3 8.8 10.1 MER 1.0 1.2 2.3 3.7 Et50 (day) 10.6 11.5 9.2 8.0

The polymer used in this embodiment is a water-soluble polyacrylic compound as a polymer organic flocculant. As shown in Table 19 and Table 20, as the addition amount of the composition and the polymer of the present invention, the total and the expression rate of both seeds increased, and it was most effective when 5% of the composition and 3% of the polymer were added. In particular, the number of appearance days was reduced by three days.

2. Iron Fertilizer (Ironite)

Emergence of Tolsfeskew by Addition of Iron Granular Fertilizer 0% 0.5% 2.0% CEP (%) 49.5 62.0 60.5 ER 4.0 7.2 6.9 MER 1.3 3.2 2.2 Et50 (day) 13.1 9.3 9.2

As a result of the addition of 3% of the composition of the present invention and the iron granular fertilizer, as shown in Table 21, as the addition amount of the iron granular fertilizer increased, the appearance rate and the appearance rate of the tolsque cue increased, and the number of appearance days was also reduced by about 4 days.

3. Peat Moss

Emergence of Red Clover with Addition of Pitmoss 0% 3.0% 5.0% CEP (%) 77.0 84.0 84.0 ER 8.4 9.5 14.3 MER 2.5 4.1 6.5 Et50 (day) 9.2 8.5 5.4

Emergence of tolsfeskew according to the amount of pitmoss added 0% 3.0% 5.0% CEP (%) 49.5 63.0 77.5 ER 4.0 5.6 9.9 MER 1.3 1.6 3.9 Et50 (day) 13.1 11.9 8.1

As a result of adding 3% of the composition of the present invention and peat moss, as shown in Table 22 and Table 23, as the addition amount of peat moss increased, the appearance rate and appearance rate of the two seeds were improved, and the number of appearance days was also shortened. In the case of the Tolsque cue, the total appearance rate, the appearance rate and the maximum appearance rate were increased by 56.6%, 147.5% and 200%, respectively, when the pitmoss content was 5%, and the appearance days were reduced by 5 days.

4. Rare Earth

Emergence of Red Clover with Addition of Complex Rare Earth 0% 0.1% 0.2% CEP (%) 77.0 79.0 61.0 ER 8.4 10.2 6.5 MER 2.5 3.5 2.1 Et50 (day) 9.2 7.5 9.1

Emergence of Tolsfesky with Addition of Complex Rare Earth 0% 0.1% 0.2% CEP (%) 49.5 66.5 52.0 ER 4.0 7.0 5.2 MER 1.3 2.3 1.8 Et50 (day) 13.1 10.0 10.5

As a result of the addition of 3% of the composition of the present invention and the composite rare earth, as shown in Table 24 and Table 25, as the amount of the composite rare earth was increased, the appearance rate and the appearance rate of the two seeds were improved, and the appearance time was also shortened.

To summarize the above results, the addition of additives such as polymer, iron powder fertilizer, pit moss, complex rare earth to the basic composition of the present invention, there was an effect that the emergence power of grass seed is more increased.

Example 12: Promotion Effect of Herb Growth

This example examined the effect of the composition of the present invention on the growth of plants. Tolsque cue was used as a starting species. The soils were collected from the practice forests of Jeonbuk University, paddy soils in Yeonhari, Jeonju-si, rice fields from Songcheon-dong, Jeonju-si, and reclaimed soils from reclaimed lands in Gyehwa-do, Buan-gun, Jeonbuk. After mixing 0-9% of the composition of the present invention to each soil, 50 seeds of Tolsquess were sown in plastic flower beds (15 cm x 15 cm) and grown in a glass house by four repetitions and a split batch method per treatment. Survey items were: prevalence, settling rate, grass length, fresh grass yield and dry matter yield, where the settling rate is the percentage of seedlings actually settled against germinated seeds. The following is the result of each soil test.

1. Settlement Rate

Settling rate of tolsquesk according to the amount of the present invention added by soil (unit:%) 0% One% 3% 6% 9% Mountain soil 63.8 67.5 3 6 9 Soil 76.3 78.8 80.0 78.8 80.0 Soil 75.0 75.0 73.8 58.8 63.8 Reclaimed soil 18.8 45.0 48.8 45.0 18.8

As shown in Table 26, Tolsque's fixation rate was slightly increased in paddy soils, and drastically decreased by 3% or more in mountain soils, while it increased up to 2.5 times in reclaimed soils.

2. Extra long

Height of tall pescue according to the amount of the present invention added by soil (unit: cm) 0% One% 3% 6% 9% Mountain soil 5.1 12.9 12.0 9.2 7.7 Soil 16.2 19.3 20.2 18.7 11.7 Soil 21.7 21.1 22.9 21.8 16.6 Reclaimed soil 8.5 9.0 7.8 6.1 3.4

As shown in Table 27, the tall height of the tolsqueu increased more than twice in mountain soil, and slightly increased in paddy soil, field soil, and reclaimed soil.

3. Raw water yield

Raw grass yield of tolsfescue according to the amount of the present invention added by soil (unit: g / pot) 0% One% 3% 6% 9% Mountain soil 0.01 0.39 0.14 0.19 0.49 Soil 1.41 2.49 4.25 3.31 0.89 Soil 5.72 7.74 10.75 10.12 4.49 Reclaimed soil 0.59 0.17 0.07 0.05 0.01

As shown in Table 28, the amount of haystack of the Tolsquesew was greatly increased in the case of the hill soil, because the hill soil, which was strongly acidic, was brought to a pH suitable for plant growth due to the addition of the composition of the present invention. In the paddy and field soils, the hay yield of tolsfeques increased significantly compared to untreated areas, and that of reclaimed soils decreased significantly.

4. Building quantity

Dry water quantity of tolsquesk according to the amount of the present invention added by soil (unit: g / pot) 0% One% 3% 6% 9% Mountain soil 0.01 0.06 0.01 0.33 0.05 0.29 0.03 0.14 0.12 0.18 Soil 0.27 0.33 0.49 0.55 0.77 0.79 0.61 0.82 0.20 0.68 Soil 1.12 1.40 1.37 1.46 1.78 1.99 1.53 1.95 0.66 1.52 Reclaimed soil 0.12 0.09 0.03 0.23 0.01 0.16 0.02 0.11 0.001 0.04

As shown in Table 29, in the case of mountain soils, 0.34 g of dry matter was produced per pot when 1% and 3% of the composition of the present invention was added, which was increased by 386% compared to the non-added furniture. In the case of paddy soils, the dry matter yield was increased in all the additions, especially the most effective in the 3% addition, which was 160% higher than the untreated. In the case of field soils, dry matter yield increased due to the same trend as paddy soils, and was the most favorable at 3% addition.

Taken together, the growth of the plant was promoted as the amount of the present invention increased, but growth impairment occurred in 6% or more of the reclaimed soil.

Example 13: Coating of Seeds

In this example, the effect of coating the seed of the plant with the composition of the present invention on the appearance of the plant was investigated. Red clover and tolsque cue were used as the seed species, and the appearance rate was measured by adding 0 to 7% of the composition of the present invention to the material covering the seed.

Prevalence of Coated Seeds According to the Addition of Composition of the Invention (Unit:%) Uncoated seeds 0% One% 3% 5% 7% Red clover 10.6 16.6 26.6 38.0 30.6 13.0 Tall Pesque 14.0 30.0 41.4 39.6 35.6 39.6

As shown in Table 30, the addition of the composition of the present invention to the seed coating material significantly improved the prevalence of topped tolsque and red clover. In the case of tolsfeque, the appearance rate was significantly improved in all the coated treatments, and the appearance rate of 1% treatment was increased by 124% compared to the untreated seed without coating, and the coating treatment was not added to the present invention. Compared with 38%. In the case of red clover, the appearance rate was significantly improved in the 1-5% addition group, especially 259% in the 3% addition group, showing the best results.

Example 14 pH Change of Soil

In this example, the effect of the addition of the composition of the present invention on the pH of the soil was investigated. Tolsque cue and red clover were used as the seedling species, and the soil pH before cultivating the first species for each soil and the soil pH after cultivation by adding 0 to 9% of the composition of the present invention were measured.

Soil pH according to the amount of the present invention added to each soil during cultivation Before the test 0% One% 3% 5% 9% Mountain soil 4.7 4.7 7.8 8.1 8.9 10.3 Soil 5.8 5.8 6.8 7.7 8.3 8.6 Soil 6.6 6.9 8.0 8.2 8.4 8.5 Reclaimed soil 8.4 8.6 9.3 8.8 9.5 9.5

Soil pH according to the amount of the present invention added by soil during cultivation of red clover Before the test 0% One% 3% 5% 9% Mountain soil 4.7 4.9 7.4 8.2 9.1 9.4 Soil 5.8 5.8 7.0 7.8 8.4 8.5 Soil 6.6 7.1 8.1 8.4 8.4 8.4 Reclaimed soil 8.4 8.5 9.2 9.0 9.3 9.0

As shown in Table 31 and Table 32, the pH of each soil was increased with the addition amount of the composition of the present invention. This is because the pH of the composition of the present invention itself is as high as 11, and therefore the amount of the present invention can be appropriately adjusted so that growth inhibition does not occur.

Example 15 Changes in Soil Composition

In this example, the change in the composition of the soil caused by the addition of the composition of the present invention was investigated. Tolskew and red clover were used as the seed species, and after cultivating the seed species by adding 0 to 9% of the composition of the present invention to each soil, the organic matter (unit%), aluminum (Al, unit ppm) and phosphoric acid (P ₂ O ₅ , in ppm) was measured.

Organic matter content of soil according to the amount of the present invention added by soil during cultivation of red clover Before the test 0% One% 3% 5% 9% Mountain soil 7.65 7.42 8.00 8.12 8.22 8.55 Soil 7.29 7.33 7.13 7.25 7.55 7.67 Soil 4.79 5.06 5.39 5.73 5.91 6.42 Reclaimed soil 2.21 2.00 2.22 2.46 2.91 3.71

Aluminum content of soil according to the amount of the present invention added by soil during cultivation of red clover Before the test 0% One% 3% 5% 9% Mountain soil 11.2 11.4 12.6 11.7 11.6 13.2 Soil 8.0 7.8 8.0 8.5 8.7 8.3 Soil 8.1 8.1 8.0 8.5 8.9 8.8 Reclaimed soil 6.1 6.0 6.1 6.4 6.5 6.7

Phosphoric Acid Content of Soil According to Addition of Composition of the Invention by Soil in Tolsque Cultivation Before the test 0% One% 3% 5% 9% Mountain soil 316 364 348 588 833 997 Soil 3,767 3,680 3,407 4,047 3,520 4,422 Soil 1,032 1,134 1,090 1,302 1,520 1,745 Reclaimed soil 826 783 915 963 1,127 1,262

As shown in Tables 33, 34 and 35, the content of organic matter, aluminum and phosphoric acid in the soil increased as the amount of the composition of the present invention increased in both soil species in each soil. Therefore, as the composition of the present invention is added, the soil components necessary for germination and growth of plants may be replenished, and the amount of the present composition may be adjusted to maintain a proper content for plant growth.

Example 16: Comparison with Conventional Compositions

In this example, the composition of the present invention and the conventional composition were compared in terms of plant growth. Seedlings were grown in mountain soil using red clover and tolsqueuque, and the appearance rate, fixation rate, fresh water yield and dry matter yield of the first species were measured for both compositions. As a conventional soil improver, a product of Japan D Company was imported and used.

The fixation rate of the first species according to the amount of the present invention and the conventional composition Red clover Tall Pesque Unprocessed K-0.3-1K-0.3-3K-0.3-5J-0.3-1J-0.3-3J-0.3-5 42.555.047.547.522.538.848.8 48.860.050.052.542.545.048.8 K: Inventive composition, J: Conventional composition, 0.3: polymer addition amount, 1, 3, 5: composition addition amount, fixation unit:%

Raw sheath yield of tolsfescue according to the amount of the present invention and the conventional composition Mowing once 2 mowing system Unprocessed K-0.3-1K-0.3-3K-0.3-5J-0.3-1J-0.3-3J-0.3-5 0.503.341.660.701.941.481.08 0.563.292.901.942.631.862.00 1.066.634.562.644.573.343.08 K: Inventive composition, J: Conventional composition, 0.3: Polymer addition amount, 1, 3, 5: Composition addition amount, fresh grass yield unit: g / pot

Dry water yield of tolsfeskew according to the amount of the present invention and the conventional composition Mowing once 2 mowing system Unprocessed K-0.3-1K-0.3-3K-0.3-5J-0.3-1J-0.3-3J-0.3-5 0.140.560.310.160.310.250.20 0.090.490.390.280.360.280.28 0.231.050.700.440.670.530.48 K: Inventive composition, J: Conventional composition, 0.3: Polymer addition amount, 1, 3, 5: Composition addition amount, dry matter unit: g / pot

Figure 9 is a graph comparing the appearance of the red clover with respect to the composition of the present invention and the conventional composition, the appearance of the red clover by the composition of the present invention was higher than when using the conventional composition.

According to Table 36, in the case of the conventional composition, the fixation rate was lowered as compared to the untreated group, while in the case of the composition of the present invention, the fixation rate was improved up to 57.4%. According to Table 37 and Table 38, when the Tolsque Cultivation was added to the composition of the present invention, the yield and dry water yield were better than those of the conventional composition.

Example 17: On-Site Implementation

The composition of the present invention was directly applied to each construction site, the following is an example.

1. Slope reinforcement work for golf practice range

The composition of the present invention was applied for the purpose of reinforcing the collapsed slope of the Pyeongju-dong Golf Driving Range. 3% of the composition of the present invention was mixed to an area of 10 m 2 and a volume of 10 m 3, and after about 4 months after construction, the site was surveyed and the slope was stabilized. 10 is a photograph showing the progress of the construction, it can be seen that the vegetation is well settled.

2. National Industrial Complex Construction

In the Gunsan National Industrial Complex, Osikdo-dong, Gunsan-si, the present invention composition was applied for the purpose of securing trackability and ground stability. The soft ground of Boseong construction site of the construction section 3 was a high content silt clay and the equipment could not run and dynamic liquefaction occurred. 4 to 5 x 1 m of the ground was mixed with 2 ton of the present invention and 500 kg of an adjuvant and compacted. As shown in Figure 11, the soft ground was stably improved by the addition of the composition of the present invention.

3. Farmland Cleanup

The composition of the present invention was applied for the purpose of clearing the slope of the land in the agricultural land readjustment of the branch of Jeollabuk-do. The slope of the present invention was reinforced by mixing 600 kg of the composition of the present invention on an area of 20 m 2 and a volume of 12 m 3. As shown in FIG. 12, the farmland slope was stably arranged due to the mixing of the composition of the present invention, and the vegetated grasses were well settled.

4. Cemetery Construction

The present invention composition was applied for the purpose of improving the ground of the slope and the graveyard entrance in the graveyard construction of Jusan-myeon, Boryeong-si, Chungcheongnam-do, the specific construction details are shown in Table 39.

Construction details of cemetery composition construction to which the present invention composition is applied Slope 1 Slope 2 Slope 3 Cemetery entrance Ramp Slope and Drain Area (㎡) 120 66 160 120 - Volume (㎥) 60 33 80 60 - Dose Composition of the Invention 2 ton 1 ton 3 ton 3 ton 1 ton

As a result of surveying the site after a week of construction, as shown in FIG. 13, most of the work zones (slopes and sidewalks) were stabilized, and cracks on the weak surface of the surface due to the effect of rainwater on slope 2 where the dosage of the composition of the present invention was insufficient. And some reductions in intensity were noted.

5. Slope reinforcement work

The present invention composition was applied for the purpose of reinforcing cut slopes of Jochon-dong road construction site in Gunsan, Jeollabuk-do. 3% of the composition of the present invention was mixed on an area of 120 m 2 and a volume of 60 m 3, specifically, the composition of the present invention was mixed, filled, and compacted by using 0.2 m 3 and 1.0 m 3 excavator. As a result of surveying the site after 3 days of construction, most of the sections were stabilized as shown in FIG.

6. Main Street Walkway Construction

The composition of the present invention was applied for the purpose of installing nature-friendly trails in the construction of Jugong Apartment in Hwigyeong-dong, Seoul. 12 ton of the composition of the present invention was mixed on a slope having an area of 600 m 2 and a volume of 120 m 3. 10 cm of the total thickness of 20 cm is mixed with coarse soil, laid and then energized, and the other 10 cm is mixed and stirred with 8 mm sieve, mixed with soil, sprinkled, sprinkled, and dried again (about 1 day later). Voltage. As a result of construction, most of the sections were improved well.

7. Bentonite Improvement

As a result of mixing with 62 kg (4%) of the composition of the present invention per 1 m 3 of bentonite having a high water content, as shown in FIG. 15, water is almost absorbed after construction, and the soil can be easily dumped even by an excavator. Became.

8. Park Pond Maintenance

In the park pond maintenance work, 7% of the composition of the present invention was mixed with the water drained from the pond before construction. As shown in FIG. 16, the pond was completely dried after construction, and then used as a fill.

9. Construction of construction road

As a result of mixing 3% of the composition of the present invention on the soft ground of the construction site where the ground is poor enough that the bulldozer cannot enter before the construction, an easy road through which the bulldozer can enter is opened as shown in FIG. 17.

10. Farm Road Slope Restoration Work

In the recovery of the slope of the farm road, after removing 30 cm of the surface layer of the slope where the soil was lost and collapsed, 3% of the composition of the present invention was compacted, and as a result, as shown in FIG. As a result, the slopes did not collapse, and the vegetated grass grew vigorously.

11. Waste mud improvement

In the sludge improvement work, as shown in FIG. 19, 6% of the composition of the present invention was mixed with waste mud and used as embankment fill. As a result of the flat loading test after the soft ground reclamation work, the measured value was 20.4 kg / cm3 and exceeded the standard value (the roadbed: 10 kg / cm3, the phase prevention layer 15 kg / cm3). I could confirm it.

12. Foundation improvement work of concrete water pipe

In the concrete water pipe foundation work, after mixing the composition of the present invention 7% and compacted the outer surface of 5 cm, as shown in Figure 20 a solid concrete water pipe was completed.

13. Slope Foundation Construction

As a result of mixing 4% of the composition of the present invention on a slope that is likely to collapse when there is a lot of rain, as shown in FIG. 21, the slope base was not collapsed even after rainy weather and remained stable.

The above embodiments are merely examples for explaining the preferred configuration and effects of the present invention, and are not to be construed as limiting the scope of the invention as claimed below.

As described above, the composition of the present invention can secure the required strength in all soils and at the same time maintain a stable strength for a long time. In addition, the germination and growth of the plant in the improved soil is possible, thereby increasing the bearing capacity of the ground, and assimilation to the natural state in the artificial solidification state provides a desirable nature-friendly environment in terms of greening. Therefore, the present invention is a useful invention for civil and agricultural industries.

Claims (7)

A composition for soil stabilization and improvement comprising 30 to 50 parts by weight of SiO ₂ , 20 to 40 parts by weight of CaO, 15 to 30 parts by weight of Al ₂ O ₃ , and 5 to 10 parts by weight of SO ₃ . According to claim 1, MgO 1 to 5 parts by weight, Fe ₂ O ₃ 1 to 5 parts by weight, TiO ₂ 0.1 to 3 parts by weight, K ₂ O 0.1 to 1 parts by weight, Na ₂ O 0.1 to 1 parts by weight, P ₂ O ₅ 0.1-1 part by weight and a composition further comprising a trace material consisting of BaO, CuO, MnO, ZnO, ZrO ₂ . The composition of claim 1, further comprising 0.1 to 10 parts by weight of the polymer organic flocculant. The composition of claim 1, further comprising 0.1 to 10 parts by weight of peat moss. The composition according to claim 1, further comprising 0.1 to 3 parts by weight of iron injectable fertilizer. The composition of claim 1, further comprising 0.1 to 1 parts by weight of the composite rare earth. The composition according to any one of claims 1 to 6, wherein the plants can be germinated and grown in the improved ground containing the composition.