KR20110126899A - Soil stabilizer - Google Patents

Soil stabilizer Download PDF

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KR20110126899A
KR20110126899A KR20100046411A KR20100046411A KR20110126899A KR 20110126899 A KR20110126899 A KR 20110126899A KR 20100046411 A KR20100046411 A KR 20100046411A KR 20100046411 A KR20100046411 A KR 20100046411A KR 20110126899 A KR20110126899 A KR 20110126899A
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ground
weight
stabilizer
soil
industrial
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KR20100046411A
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Korean (ko)
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KR101290592B1 (en
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김동수
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김동수
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
    • C04B28/142—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)

Abstract

PURPOSE: An environment-friendly ground stabilizer is provided to improve water permeability while reinforcing the strength of the ground, to reutilize industrial byproducts, and to avoid the discharge of heavy metals. CONSTITUTION: An environment-friendly ground stabilizer without cement comprises, based on the total weight of the ground stabilizer, 5~30 weight% of mineral including one kind selected from vermiculite, pearlite and a mixture thereof, 40~70 weight% of industrial byproducts including one kind selected from waste gypsum, waste lime and a mixture thereof, 10~40 weight% of soil including one kind selected from loess, clay and a mixture thereof, and 1~10 weight% of additives including one or two or more kinds selected from zeolite, diatomite, kaolin, fly ash, carbonate, calcium hydroxide, silica fume, and sodium silicate.

Description

지반안정제{SOIL STABILIZER}Ground Stabilizer {SOIL STABILIZER}

본 발명은 지반안정제에 관한 것이다.The present invention relates to a ground stabilizer.

일반적으로 지반안정제는 총 중량에 대하여 70~80% 이상의 시멘트를 함유하고 있다. 시멘트의 함량이 너무 높으면 지반의 강도는 강화될지라도, 지반의 투수성이 저하되는 문제가 있다. 이러한 문제점을 개선하기 위하여 시멘트의 양을 줄인 슬래그와 플라이애쉬를 혼합한 시멘트를 개발하였고, 이를 지반안정제에 적용하였다. 또한, 지반안정제의 단가를 낮추기 위하여, 비교적 가격이 고가인 슬래그를 플라이애쉬로 대체하기 위하여 노력하였다. In general, ground stabilizers contain more than 70-80% of the cement by weight. If the content of cement is too high, even if the strength of the ground is strengthened, there is a problem that the permeability of the ground is lowered. In order to improve this problem, cement with reduced slag and fly ash was developed and applied to ground stabilizer. In addition, to lower the unit price of the ground stabilizer, efforts were made to replace the relatively expensive slag with fly ash.

하지만, 상기와 같이 지반안정제에 시멘트의 사용량을 줄이고, 포졸란 재료인 플라이애쉬를 혼합하는 개발들은, 포졸란 물질의 활성도를 증가시켜야 하는데, 이는 아직 미흡한 실정이다.However, the development of reducing the amount of cement in the ground stabilizer and mixing fly ash, which is a pozzolanic material, should increase the activity of the pozzolanic material, which is still insufficient.

한편, 화학공장 등에서 발생하는 인산석고 등의 폐석고의 처리방법으로는 재활용하는 방법, 강이나 바다에 폐기하는 방법, 석고장 등에 적치하는 방법 등이 있다. 폐석고의 처리방법 중 가장 바람직한 방법으로는, 재활용하는 방법, 즉 시멘트 및 석고보드의 원료로 이용하는 것이다.On the other hand, as a method for treating waste gypsum such as phosphate gypsum generated in a chemical plant, etc., there are a method of recycling, a method of disposing in a river or the sea, a method of placing it in a gypsum field and the like. The most preferable method of the treatment of waste gypsum is a method of recycling, that is, used as raw materials for cement and gypsum board.

그러나, 폐석고 중에서도 인산석고는 비경제적이고, 매우 강산성 물질이고, 중금속(Cr, Cd) 및 방사능 물질(radon)을 함유하고 있으므로 일반폐기물로 분류되므로 재활용하기는 어렵다. 따라서 인산석고는 대부분이 석고장 등에 적치되고 있는 실정이다. However, among the waste gypsum, it is difficult to recycle since it is classified as general waste because it is inexpensive, very strong acidic material, and contains heavy metals (Cr, Cd) and radioactive material (radon). Therefore, most of the phosphate gypsum is stored in the plaster and the like.

본 발명의 목적은 시멘트를 포함하지 않는 지반안정제를 제공하는 것이다.It is an object of the present invention to provide a ground stabilizer that does not contain cement.

또한, 본 발명의 목적은 산업부산물을 재활용할 수 있고, 산업부산물을 사용할지라도 중금속 등이 방출되지 않아 환경친화적인 지반안정제를 제공하는 것이다.In addition, an object of the present invention is to provide an environmentally friendly ground stabilizer that can recycle industrial by-products, heavy metals, etc. are not released even when the industrial by-products are used.

또한 본 발명의 목적은 지반의 강도를 강화시키면서 투수성이 향상된 지반안정제를 제공하는 것이다.It is also an object of the present invention to provide a ground stabilizer having improved water permeability while enhancing the strength of the ground.

또한 본 발명의 목적은 원지반과의 친화성이 강화된 지반안정제를 제공하는 것이다.It is also an object of the present invention to provide a ground stabilizer having enhanced affinity with the ground.

본 발명은 시멘트를 포함하지 않는 지반안정제에 있어서, 지반안정제 총 중량에 대하여, 질석, 진주암 및 이들의 혼합물 중에서 선택되는 1종을 포함하는 광물 5~30중량%; 폐석고, 폐석회 및 이들의 혼합물 중에서 선택되는 1종을 포함하는 산업부산물 40~70중량%; 황토, 점토 및 이들의 혼합물 중에서 선택되는 1종을 포함하는 흙 10~40중량%; 및 제올라이트, 규조토, 고령토, 플라이애쉬, 탄산칼슘, 소석회, 실리카흄 및 규산소다 중에서 선택되는 1종 또는 2종 이상을 포함하는 첨가제 1~10중량%를 포함하는 것을 특징으로 하는 지반안정제를 제공한다.The present invention provides a ground stabilizer containing no cement, 5-30% by weight of a mineral including one selected from vermiculite, pearlite, and mixtures thereof, based on the total weight of the ground stabilizer; 40 to 70% by weight of industrial by-products including one selected from waste gypsum, waste lime and mixtures thereof; 10 to 40% by weight of soil, including one selected from loess, clay, and mixtures thereof; And it provides a ground stabilizer comprising 1 to 10% by weight of an additive including one or two or more selected from zeolite, diatomaceous earth, kaolin, fly ash, calcium carbonate, slaked lime, silica fume and sodium silicate.

본 발명은 상기 산업부산물의 수분함유량이 5~15중량%인 것을 특징으로 하는 지반안정제를 제공한다.The present invention provides a ground stabilizer, characterized in that the water content of the industrial by-product is 5 to 15% by weight.

본 발명은 상기 폐석고가 인산석고인 것을 특징으로 하는 지반안정제를 제공한다.The present invention provides a ground stabilizer, characterized in that the waste gypsum is phosphate gypsum.

본 발명은 상기 광물의 입경이 1~5㎜가 되도록 분쇄한 후, 700~1,200℃에서 급속가열하여 10~15배로 박리팽창시킨 것을 특징으로 하는 지반안정제를 제공한다.The present invention provides a ground stabilizer, which is ground to a particle diameter of 1 to 5 mm, and then rapidly heated at 700 to 1,200 ° C. for 10 to 15 times expansion.

본 발명은 토양 100중량부에 대하여, 상기 지반안정제를 20~30중량부 혼합하여 지반을 안정시키는 것을 특징으로 하는 지반안정방법을 제공한다.The present invention provides a ground stability method characterized in that the ground stabilizes by mixing 20 to 30 parts by weight of the ground stabilizer with respect to 100 parts by weight of soil.

본 발명은 상기 토양이 연약지반의 토양 및 해안점토인 것을 특징으로 하는 지반안정방법을 제공한다.The present invention provides a soil stabilization method characterized in that the soil is soft soil and coastal clay.

본 발명의 지반안정제는 시멘트를 포함하지 않고도 지반을 안정시킬 수 있다. 또한 본 발명의 지반안정제는 산업부산물을 재활용할 수 있고, 산업부산물을 사용할 지라도 중금속 등이 방출되지 않아 환경친화적이다. 또한 본 발명의 지반안정제는 지반의 강도를 강화시키면서 투수성을 향상시킨다. 또한 본 발명의 지반안정제는 원지반과의 친화성이 우수하다.The ground stabilizer of the present invention can stabilize the ground without including cement. In addition, the ground stabilizer of the present invention can recycle the industrial by-products, even if the industrial by-products are used, it is eco-friendly because heavy metals are not released. In addition, the ground stabilizer of the present invention improves water permeability while enhancing the strength of the ground. In addition, the ground stabilizer of the present invention is excellent in affinity with the original ground.

이하, 본 발명에 대해 상세히 설명한다.Hereinafter, the present invention will be described in detail.

본 발명은 시멘트를 포함하지 않고, 광물, 산업부산물, 흙 및 첨가제를 포함하는 지반안정제를 제공한다.
The present invention provides a ground stabilizer that does not include cement and includes minerals, industrial by-products, soil, and additives.

본 발명의 지반안정제에 포함되는 광물은 질석, 진주암 및 이들의 혼합물 중에서 선택되는 1종을 포함한다. 상기 광물은 지반안정제 총 중량에 대하여, 5~30중량%로 포함되고, 10~20중량%로 포함되는 것이 바람직하다. 상술한 범위를 만족하는 지반안정제를 이용하면, 지반의 강도를 저하시키지 않으면서 지반의 투수성이 우수해진다.The mineral contained in the ground stabilizer of the present invention includes one selected from vermiculite, pearlite and mixtures thereof. The mineral is contained in 5 to 30% by weight, 10 to 20% by weight relative to the total weight of the ground stabilizer. When the ground stabilizer satisfying the above-mentioned range is used, the water permeability of the ground is excellent without lowering the strength of the ground.

상기 질석은 흑운모가 풍화 또는 열수변질에 의해서 생성된 광물로서, 그 내부에 물분자가 결합되어 있어 고온으로 가열되면 광물 내부의 수분이 증발하면서 형성되는 기포로 인해 내부에 무수한 기공이 형성되고 원석 부피의 20~40배까지 팽창하는 성질을 갖는다.The vermiculite is a mineral produced by weathering or hydrothermal alteration of biotite, and water molecules are bound therein, and when heated to a high temperature, numerous pores are formed therein due to bubbles formed by evaporation of moisture inside the mineral, It has the property of expanding up to 20 ~ 40 times.

상기 진주암은 화산암이 급속히 냉각될 때 형성되는 흑요석으로, 그 내부에 함유된 수분은 고온으로 가열될 때 증발하고 부풀어 올라 미세한 다공질의 하얀 광물성이 되고 산도가 중성이며 양분함량이 거의 없다. 따라서 잡초, 종자, 병원균 및 해충 등이 전혀 서식하지 않는다. The pearlite is obsidian formed when the volcanic rock is rapidly cooled, and the moisture contained therein evaporates and swells when heated to a high temperature, becoming a fine porous white mineral, having a neutral acidity, and almost no nutrient content. Therefore, weeds, seeds, pathogens and pests do not live at all.

상기 질석 및 진주암은 입경이 1~5㎜가 되도록 분쇄한 후, 700~1,200℃에서 급속가열하여 10~15배로 박리팽창시킨 것이 바람직하다. 상기 박리팽창은 공지의 팽창로(expansion furnace)로 된 팽창장치를 사용한다.
The vermiculite and pearlite are preferably pulverized so as to have a particle diameter of 1 to 5 mm, and then rapidly heated at 700 to 1,200 ° C. to be peeled and expanded 10 to 15 times. The exfoliation expansion uses an expansion device made of a known expansion furnace.

본 발명의 지반안정제에 포함되는 산업부산물은 폐석고, 폐석회 및 이들의 혼합물 중에서 선택되는 1종을 포함한다. 상기 산업부산물은 지반안정제 총 중량에 대하여, 40~70중량%로 포함되고, 50~60중량%로 포함되는 것이 바람직하다. 상술한 범위를 만족하는 지반안정제를 이용하면, 시멘트를 사용하지 않으면서도 포졸란 반응을 일으켜 지반안정층의 고결력을 증강시켜 시멘트와 비슷한 강도 및 투수성이 우수한 지반을 구현할 수 있다. 또한 산업부산물을 재활용하는 것이므로 환경친화적이고 원지반과의 친화성도 우수하다. Industrial by-products included in the ground stabilizer of the present invention includes one selected from waste gypsum, waste lime and mixtures thereof. The industrial by-products are included in the 40 to 70% by weight, 50 to 60% by weight relative to the total weight of the ground stabilizer. By using a ground stabilizer that satisfies the above-described range, it is possible to realize a ground having excellent strength and permeability similar to cement by causing a pozzolanic reaction without using cement to enhance the high strength of the ground stabilized layer. In addition, because it is recycling industrial by-products, it is environmentally friendly and has excellent affinity with the ground.

상기 산업부산물의 수분함유량이 5~15중량%인 것이 바람직하다. 상술한 범위를 만족하면, 안정화하고자 하는 지반의 수분을 흡수하여 지반의 강도를 개선시킬 수 있다. 또한 상기 산업부산물은 pH 6.5~7.0으로 중성화된 것이 바람직하다. 중성화된 산업부산물에서는 기포가 발생하게 되므로, 지반안정제가 경량화되고 투수성이 우수해질 수 있다.It is preferable that the water content of the industrial by-product is 5 to 15% by weight. If the above range is satisfied, the strength of the ground can be improved by absorbing the moisture of the ground to be stabilized. In addition, the industrial by-product is preferably neutralized to pH 6.5 ~ 7.0. Since bubbles are generated in the neutralized industrial by-products, the ground stabilizer may be lighter and more excellent in permeability.

상기 산업부산물은 인산석고에서 유래된 폐석고인 것이 바람직하다.
The industrial by-products are preferably waste gypsum derived from phosphate gypsum.

본 발명의 지반안정제에 포함되는 흙은 황토, 점토 및 이들의 혼합물 중에서 선택되는 1종을 포함한다. 상기 흙은 지반안정제 총 중량에 대하여 10~40중량%로 포함된다. 상술한 범위를 만족하는 지반안정제를 이용하면, 상기 산업부산물을 중성화시켜 보다 환경친화적인 지반안정제를 구현할 수 있다.
Soil included in the ground stabilizer of the present invention includes one type selected from ocher, clay and mixtures thereof. The soil is included in 10 to 40% by weight based on the total weight of the ground stabilizer. By using a ground stabilizer that satisfies the above-mentioned range, it is possible to implement a more environmentally friendly ground stabilizer by neutralizing the industrial by-products.

본 발명의 지반안정제에 포함되는 첨가제는 제올라이트, 규조토, 고령토, 플라이애쉬, 탄산칼슘, 소석회, 실리카흄 및 규산소다 중에서 선택되는 1종 또는 2종 이상을 포함한다. The additive contained in the ground stabilizer of the present invention includes one or two or more selected from zeolite, diatomaceous earth, kaolin, fly ash, calcium carbonate, slaked lime, silica fume and sodium silicate.

상기 제올라이트, 규조토, 고령토는 지반의 강도를 증진시켜주는 물질이다. 상기 플라이애쉬는 포졸란물질로서 포졸란 반응을 일으키는 물질이다. 상기 탄산칼슘은 지반의 강도발현을 도와주는 물질이다. 상기 실리카흄은 비정질 실리카로서 상기 산업부산물의 수화활동을 원활하게 하여 포졸란 반응을 활성화시켜주는 물질이다. 상기 규산소다는 상기 산업부산물의 양생제 또는 안정제로 사용되며 토양의 고결력과 강도를 유지시켜주는 물질이다.The zeolite, diatomaceous earth, kaolin are materials that enhance the strength of the ground. The fly ash is a material that causes a pozzolanic reaction as a pozzolanic material. The calcium carbonate is a material that helps to express the strength of the ground. The silica fume is an amorphous silica that facilitates the hydration activity of the industrial by-products to activate the pozzolanic reaction. The sodium silicate is used as a curing agent or stabilizer of the industrial by-products and is a material that maintains high strength and strength of the soil.

상기 첨가제는 지반안정제 총 중량에 대하여 1~10중량%로 포함되고, 3~7중량%로 포함되는 것이 바람직하다. 상술한 범위로 지반안정제에 포함되면, 지반의 강도증진, 포졸란 반응을 활성화시켜 지반의 안정을 도울 수 있다.The additive is included in 1 to 10% by weight, 3 to 7% by weight relative to the total weight of the ground stabilizer. When included in the ground stabilizer in the above range, it is possible to help stabilize the ground by increasing the strength of the ground, activating the pozzolanic reaction.

본 발명의 지반안정제는 광물, 산업부산물, 흙 및 첨가제를 혼합하고, 300~400℃에서 저속회전하고 건조시키는 것이 바람직하다. 상기 조건에서 혼합된 지반안정제를 물에 직접 타설하면 산업부산물인 폐석고의 응집력이 플라이애쉬의 화학반응에 힘을 받아 미네랄 성분은 물론 원적외선 방출과 음이온의 교환능력이 발생되게 된다. 이러한 작용으로 무공의 지반안정제를 제공할 수 있다.
It is preferable that the ground stabilizer of the present invention is mixed with minerals, industrial by-products, soil, and additives, and rotated at low speed and dried at 300 to 400 ° C. When the ground stabilizer mixed in the above conditions is directly poured into water, the cohesive force of the waste gypsum, which is an industrial by-product, is affected by the chemical reaction of the fly ash, thereby generating the ability to exchange not only minerals but also far infrared rays and anions. This action can provide a ground stabilizer.

본 발명은 토양 100중량부에 대하여, 본 발명의 지반안정제를 20~30중량부 혼합하여 지반을 안정시키는 것을 특징으로 하는 지반안정방법을 제공한다. 상술한 범위로 혼합하면 과도한 경제적 손실 없이도 지반을 안정화시킬 수 있다.The present invention provides a ground stabilizing method characterized in that the ground stabilizes by mixing 20 to 30 parts by weight of the ground stabilizer of the present invention with respect to 100 parts by weight of soil. Mixing in the above-described range can stabilize the ground without excessive economic loss.

본 발명은 상기 토양이 연약지반의 토양 및 해안점토인 것을 특징으로 하는 지반안정방법을 제공한다.
The present invention provides a soil stabilization method characterized in that the soil is soft soil and coastal clay.

본 발명의 지반안정제는 시멘트를 포함하지 않고도 지반을 안정시킬 수 있다. 또한 본 발명의 지반안정제는 산업부산물을 재활용할 수 있고, 산업부산물을 사용할 지라도 중금속 등이 방출되지 않아 환경친화적이다. 또한 본 발명의 지반안정제는 지반의 강도를 강화시키면서 투수성을 향상시킨다. 또한 본 발명의 지반안정제는 원지반과의 친화성이 우수하다.
The ground stabilizer of the present invention can stabilize the ground without including cement. In addition, the ground stabilizer of the present invention can recycle the industrial by-products, even if the industrial by-products are used, it is eco-friendly because heavy metals are not released. In addition, the ground stabilizer of the present invention improves water permeability while enhancing the strength of the ground. In addition, the ground stabilizer of the present invention is excellent in affinity with the original ground.

이하에서, 실시예 및 시험예를 통하여 본 발명을 더욱 상세하게 설명한다. 그러나, 본 발명의 범위가 하기의 실시예 및 시험예에 의하여 한정되는 것은 아니다.
Hereinafter, the present invention will be described in more detail with reference to Examples and Test Examples. However, the scope of the present invention is not limited by the following examples and test examples.

실시예1, 비교예1 및 비교예2: 지반안정제의 제조Example 1, Comparative Example 1 and Comparative Example 2: Preparation of Ground Stabilizer

하기 표 1의 구성성분 및 함량으로 지반안정제를 제조하였다. 이때, 질석의 화학성분은 하기 표 2와 같고 진주암의 화학성분은 하기 표 3과 같다. 또한 인산석고의 화학성분은 하기 표 4와 같다.The ground stabilizer was prepared according to the ingredients and contents shown in Table 1 below. At this time, the chemical composition of vermiculite is shown in Table 2 below, and the chemical composition of pearlite is shown in Table 3 below. In addition, the chemical composition of the phosphate gypsum is shown in Table 4.

질석Vermiculite 진주암Mother-of-pearl 폐석고(인산석고)Waste Gypsum (Phosphate Gypsum) 황토ocher 플라이애쉬Fly ash 제올라이트Zeolite 시멘트cement 실시예1
(중량%)Example 1
(weight%) 1515 1010 6060 1010 22 33 -- 비교예1
(중량%)Comparative Example 1
(weight%) -- -- 8585 1010 22 33 -- 비교예2Comparative Example 2 1515 1010 -- 1010 22 33 6060

SiO2 SiO 2 Fe2O3 Fe 2 O 3 Al2O3 Al 2 O 3 CaOCaO MgOMgO K2OK 2 O Na2ONa 2 O 강열감량Ignition loss 수분moisture pH
(측정온도: 20.8℃)pH
(Measurement temperature: 20.8 ℃) 함량
(중량%)content
(weight%) 30.730.7 7.267.26 18.418.4 2.222.22 21.4021.40 2.212.21 0.220.22 8.98.9 7.57.5 8.18.1

SiO2 SiO 2 Fe2O3 Fe 2 O 3 Al2O3 Al 2 O 3 CaOCaO MgOMgO K2OK 2 O Na2ONa 2 O 강열감량Ignition loss 수분moisture pH (측정온도: 20.8℃)pH (measurement temperature: 20.8 ℃) 함량
(중량%)content
(weight%) 71.171.1 0.880.88 19.019.0 0.730.73 0.310.31 5.495.49 1.191.19 1.01.0 0.20.2 6.76.7

석고gypsum 인산염phosphate 플로오르화물Fluoride 모래sand 가용성 염류Soluble salts 함량(중량%)Content (% by weight) 8585 1One 1One 88 55

시험예: 지반안정제의 특성 평가Test Example: Evaluation of Characteristics of Ground Stabilizer

토양(모래) 100㎏에 실시예1, 비교예1 및 비교예2의 지반안정제를 25㎏을 첨가, 교반하면서 최적함수비에 해당하는 물을 넣고, 평탄화 작업으로 20㎝이하가 되도록 다짐하였다. 한달 동안의 양생기간을 거쳐 코어채취를 시험하였다.25 kg of ground stabilizers of Example 1, Comparative Example 1 and Comparative Example 2 were added to 100 kg of soil (sand), and water was added to the optimum water content ratio while stirring, and compacted to be 20 cm or less by a flattening operation. Core harvesting was tested after a month-long curing period.

실시예1Example 1 비교예1Comparative Example 1 비교예2Comparative Example 2 일축압축강도(kgf/㎠) Uniaxial compressive strength (kgf / ㎠) 205205 185185 198198 투수계수(cm/s)Permeability coefficient (cm / s) 5.23*10-2 5.23 * 10 -2 0.23*10-2 0.23 * 10 -2 5.03*10-2 5.03 * 10 -2

표 5를 참조하면, 질석, 진주암 및 폐석고가 모두 포함된 실시예1의 지반안정제를 이용하면 강도 및 투수성이 모두 우수하나, 질석 및 진주암이 포함되지 않은 비교예1의 경우 투수성이 저하됨을 알 수 있다. 또한 실시예1에 비하여 비교예1이 일축강도가 낮음을 알 수 있다. 또한, 실시예1과 비교하여 폐석고 대신에 시멘트가 포함된 비교예2는 강도 및 투수계수가 우수하지는 못하나, 유사하여 나쁘지 않음을 알 수 있다. 이러한 결과로 폐석고를 사용하여도 시멘트를 포함한 지반안정제와 비슷한 지반강도를 구현할 수 있음을 알 수 있다.Referring to Table 5, when the ground stabilizer of Example 1 containing all vermiculite, pearlite and waste gypsum was used, both the strength and permeability were excellent, but in the case of Comparative Example 1 without the vermiculite and pearlite, the permeability decreased. Able to know. In addition, it can be seen that Comparative Example 1 has a lower uniaxial strength than Example 1. In addition, Comparative Example 2 containing cement instead of waste gypsum compared to Example 1 is not good, but the strength and permeability coefficient is similar, not bad. As a result, the use of waste gypsum can realize the ground strength similar to the ground stabilizer including cement.

Claims (6)

시멘트를 포함하지 않는 지반안정제에 있어서,
지반안정제 총 중량에 대하여,
질석, 진주암 및 이들의 혼합물 중에서 선택되는 1종을 포함하는 광물 5~30중량%;
폐석고, 폐석회 및 이들의 혼합물 중에서 선택되는 1종을 포함하는 산업부산물 40~70중량%;
황토, 점토 및 이들의 혼합물 중에서 선택되는 1종을 포함하는 흙 10~40중량%; 및
제올라이트, 규조토, 고령토, 플라이애쉬, 탄산칼슘, 소석회, 실리카흄 및 규산소다 중에서 선택되는 1종 또는 2종 이상을 포함하는 첨가제 1~10중량%를 포함하는 것을 특징으로 하는 지반안정제.In ground stabilizers that do not contain cement,
With respect to the total weight of the ground stabilizer,
5-30 wt% of minerals including one selected from vermiculite, pearlite, and mixtures thereof;
40 to 70% by weight of industrial by-products including one selected from waste gypsum, waste lime and mixtures thereof;
10 to 40% by weight of soil, including one selected from loess, clay, and mixtures thereof; And
A ground stabilizer comprising 1 to 10% by weight of an additive comprising one or two or more selected from zeolite, diatomaceous earth, kaolin, fly ash, calcium carbonate, slaked lime, silica fume and sodium silicate. 청구항 1에 있어서,
상기 산업부산물의 수분함유량은 5~15중량%인 것을 특징으로 하는 지반안정제.The method according to claim 1,
The soil stabilizer, characterized in that the water content of the industrial by-product is 5 to 15% by weight. 청구항 1에 있어서,
상기 폐석고는 인산석고인 것을 특징으로 하는 지반안정제.The method according to claim 1,
The waste gypsum is ground stabilizer, characterized in that the phosphate gypsum. 청구항 1에 있어서,
상기 광물은 입경이 1~5㎜가 되도록 분쇄한 후, 700~1,200℃에서 급속가열하여 10~15배로 박리팽창시킨 것을 특징으로 하는 지반안정제.The method according to claim 1,
The mineral is ground ground stabilizer characterized in that the particle diameter is 1 to 5mm, and then pulverized and expanded to 10 to 15 times by rapid heating at 700 ~ 1,200 ℃. 토양 100중량부에 대하여,
청구항 1 기재의 지반안정제를 20~30중량부 혼합하여 지반을 안정시키는 것을 특징으로 하는 지반안정방법.Per 100 parts by weight of soil,
A ground stabilizing method comprising: mixing 20-30 parts by weight of a ground stabilizer according to claim 1 to stabilize the ground. 청구항 5에 있어서,
상기 토양은 연약지반의 토양 및 해안점토인 것을 특징으로 하는 지반안정방법.The method according to claim 5,
The soil is ground stability method, characterized in that the soil and soft clay soil.
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KR101303251B1 (en) * 2012-11-16 2013-09-04 (주)그룹한 어소시에이트 Rooftop gardening block
KR20180124320A (en) 2017-05-11 2018-11-21 경북대학교 산학협력단 Method of eco-friendly soil stabilizer and forest road pavement using the same
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KR20180124320A (en) 2017-05-11 2018-11-21 경북대학교 산학협력단 Method of eco-friendly soil stabilizer and forest road pavement using the same
CN110510979A (en) * 2018-05-21 2019-11-29 中国石油天然气股份有限公司 A kind of loess pipe trench waterproof chemical slurry and preparation method thereof
CN113563043A (en) * 2021-08-13 2021-10-29 贵州大学 Phosphogypsum-stabilized red clay roadbed material and preparation method thereof

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