KR20020035547A - Eco-Amending method for rapid soil hardner - Google Patents

Eco-Amending method for rapid soil hardner Download PDF

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KR20020035547A
KR20020035547A KR1020020022249A KR20020022249A KR20020035547A KR 20020035547 A KR20020035547 A KR 20020035547A KR 1020020022249 A KR1020020022249 A KR 1020020022249A KR 20020022249 A KR20020022249 A KR 20020022249A KR 20020035547 A KR20020035547 A KR 20020035547A
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soil
mixture
hardener
weight
parts
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KR1020020022249A
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Korean (ko)
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유정근
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유정근
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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
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/06—Oxides, Hydroxides
    • 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
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/02—Agglomerated materials, e.g. artificial aggregates
    • C04B18/023—Fired or melted materials
    • 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
    • C04B28/001—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 unburned clay
    • 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
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/10—Clay
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/10—Accelerators; Activators
    • C04B2103/14—Hardening accelerators
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00732—Uses not provided for elsewhere in C04B2111/00 for soil stabilisation
    • 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

Abstract

PURPOSE: Provided is an environment-friendly hardener, a mixture of Ca, Al and Si-compound, to solidify soil rapidly by using limestone, clay and bauxite as raw materials. The resultant hardener offers high strength, cracking prevention and rapid solidification for short-time working. CONSTITUTION: The hardener, being instead of cement, for soil solidification is prepared by mixing mixture(A) and mixture(B). The mixture(A) is obtained by mixing 100pts.wt. of lime stone with 50pts.wt. of clay and sintering at 1100deg.C for 1-2hrs. The mixture(B) is obtained by the following steps; melting 50pts.wt. of bauxite and flux(10pts.wt. of NaOH + 30pts.wt. of CaO) at 850deg.C; adding 10% of dilute HNO3 for a slurry, and adjust pH of the slurry between 6-8; adding 10pts.wt. of silica fume; evaporate drying and sintering at 600deg.C for 4hrs. The 10pts.wt. of prepared hardener is mixed with 90pts.wt. of soil and yellow earth for constructional use.

Description

환경친화성 속경 흙 경화제 제조방법{Eco-Amending method for rapid soil hardner}Eco-Amending Method for Rapid Soil Hardner

근래에 환경과 건강에대한 관심이 높아지고 세멘트가 가지는 독성에대해 차츰 알려지면서 황토나 흙으로 지어지는 건축물,구조물등에대한 선호가 점차 증가하고 있다. 그러나 황토나 흙을 사용하여 건축물이나 구조물등을 제조하는 경우 가장 문제가 되는 것은 제품의 강도발현이 제대로 되지못하여 구조물의 수명이 세멘트경우에비해 길지못하고, 또한 구조물을 고층으로 세우지 못하여 공간활용이 불가능한 것이다. 이러한 문제점을 해결하기위해 세멘트와황토,흙등을 혼합하여 사용함으로서 세멘트구조물의 장점인 강도와 황토의 장점인 건강,환경을 동시에 만족시킬 수 있는 흙 콘크리이트가 많이 연구되고있다. 이러한 부분의 기술적 핵심은 세멘트를 최대한 적게 사용하고 흙이나 황토를 많이 사용하면서 제품의 강도가 뛰어나고 균열의 발생이 없어야 하는 것이다. 그러나 이제까지 개발된 기술수준은 세멘트와 흙또는황토의 혼합비가 중량비로 30:50 정도밖에 못미쳐있고, 이비율 이상으로 흙이나 황토의 사용량이 증가하면 제품의 강도가 제대로 발현되지 못하고 제품에 균열이 심하게 발생하여 사용하기가 곤란하였다.Recently, with increasing interest in the environment and health and gradually becoming aware of the toxicity of cement, the preference for ocher or earth-based structures and structures is gradually increasing. However, when manufacturing buildings or structures using loess or soil, the most problematic thing is that the product's strength is not properly expressed and the life of the structure is not as long as in the case of cement. will be. In order to solve this problem, by using a mixture of cement, loess, soil, etc., soil concrete that can satisfy the strength of cement structure and health and environment of loess is studied. The technical core of this part is to use as little cement as possible and use more soil or loess, so that the strength of the product is excellent and there are no cracks. However, the technical level developed so far is that the mixing ratio of cement and soil or loess is less than 30:50 by weight ratio, and if the amount of soil or loess is increased above this ratio, the strength of the product is not properly expressed and cracks are generated. It was badly generated and difficult to use.

본 발명의 핵심내용은 세멘트를 대신할 새로운 경화제를 제조하는것이며 이를 흙과 혼합하여 사용하는 것이다. 본 발명에의해 개발된 새로운 흙 경화제 물질을 사용하면 경화제와 흙또는황토의 혼합비를 10∼20:90∼80 비율까지 획기적으로 흙또는 황토의 사용량을 늘릴수있으며 이때 제품의 강도는 250kgf/cm2 이상 발현되었으며 제품의 균열또한 조금도 없었다. 또한 본 발명물질을 사용하는경우에는 구조물등이 경화되는 시간이 매우 단축되어 짧게는 30분안에 강도가 120kgf/cm2 까지 발현된다.The core of the present invention is to prepare a new curing agent to replace the cement and to use it mixed with soil. By using the new soil hardener material developed by the present invention, the mixing ratio of the hardener and the soil or loess can be dramatically increased by 10 to 20:90 to 80 ratio, and the strength of the product is 250kgf / cm2 or more. There was no cracking of the product. In addition, in the case of using the present invention, the time to harden the structure, etc. is very shortened, and the strength is expressed to 120 kgf / cm 2 in a short time.

이러한 혼합비율로 제조된 제품은 80∼90%가 흙으로 이루어져있고 경화제의 성분도 흙과 유사한 성분으로 주로 이루어져있으므로 인체에 해가 전혀없고 원적외선등의 효과로 건강에도 매우 유익할뿐만아니라, 구조물노후시또는 파괴시 별다른 환경적인 문제점없이 파쇄물을매립하여도 성분의 대부분이 흙이므로 문제가 발생하지않는다. 이러한 기술은 기존의 기술에비해 놀랄만큼 획기적이라 할 수 있다.Since 80 ~ 90% of the products manufactured at such mixing ratio are made of soil and the components of the hardener are mainly composed of soil-like components, they are harmless to the human body and are very beneficial to health due to the effects of far infrared rays. Or, even if the destruction of landfill without any environmental problems when destroying, most of the components are soil, so no problem occurs. This technology is surprisingly innovative compared to the existing technology.

본 발명에의해 제조된 물질은 칼슘,알루미늄,규소화합물의 혼합물이다.The material produced by the present invention is a mixture of calcium, aluminum and silicon compounds.

본 물질은 석회석과 점토의 혼합물을 고온으로 소성시킨뒤 적당량의 실리카흄과The material is calcined at a high temperature by burning a mixture of limestone and clay,

NaOH로 미리 용융시킨 보오크사이트를 혼합하여 제조된다.It is prepared by mixing the bauxite previously melted with NaOH.

본 경화제 물질을 일반 흙이나 황토에 1:9의 중량비까지 혼합하여도 일반 콘크리트에 뒤지지않는 강도가 발현되며 2∼3시간안에 경화가 진행되는 속경성을 가지고 1시간이내에 130kgf/cm2의 압축강도를 발현하게되고 1일 후에는 260kgf/cm2 의 압축강도를 나타낸다. 또한, 속경성을 가지고있음에도 불구하고 시공시 제품에 전혀 균열이 생기지않는 매우 뛰어난 특성을 가지고 있다. 이제까지 이같은 비율로 흙의 함량을 높였을 경우 충분한 강도가 발현되는 제품은 없었다.Even when this hardener material is mixed with general soil or loess up to a weight ratio of 1: 9, the strength is comparable to that of general concrete, and it has a rapid hardening process within 2 to 3 hours and has a compressive strength of 130kgf / cm2 within 1 hour. After 1 day of expression it exhibits a compressive strength of 260kgf / cm2. In addition, despite its fastness, it does not have any cracks in the product at construction. So far, when the soil content is increased at such a ratio, no product exhibits sufficient strength.

본 발명물질은 일반세멘트나 고로세멘트,고로슬래그등과 혼합하여 사용하여도 기능에는 전혀 문제가 발생하지않으며 다만 전체적인 중량의 증가로인해 경화속도만 약간 저하될뿐이다.The present invention does not cause any problem even when used in combination with general cement, blast furnace cement, blast furnace slag, etc., but only a slight decrease in the curing speed due to the increase in the overall weight.

도 1 은 본 발명공정에의해 제조된 속경성 흙콘크리이트원료의 화학조성을 나타낸것이다.Figure 1 shows the chemical composition of the fast-dry soil concrete raw material prepared by the process of the present invention.

이하 본 발명에 대한 상세한 내용은 다음과 같다.Hereinafter, the details of the present invention are as follows.

본 물질의 제조는 석회석100중량부와 점토 50중량부를 혼합한후 이를 1100℃에서 1시간∼2시간동안 소성시켜서 얻어진 혼합물에 다음과 같은 공정단계를 거쳐 제조된 물질을 혼합함으로서 완성된다.The preparation of the material is completed by mixing 100 parts by weight of limestone and 50 parts by weight of clay and then calcining it at 1100 ° C. for 1 hour to 2 hours to mix the material prepared through the following process steps.

보오크사이트 50중량부를 융제(NaOH 10중량부 + CaO 30중량부)와 함께 850℃에서 용융시키는 공정단계; 여기에 10% 내외의 농도로 묽힌 질산용액을 가하여 슬러리 상태로 만든후 액의 pH를 6∼8로 조절하는 공정단계; 여기에 실리카흄 10중량부를 가하는 공정단계; 혼합물을 증발 건고시키고 600℃에서 4시간동안 소성시키는 공정단계등을 통해 얻어진 물질을 앞서 1000℃에서 소성하여 제조된 물질과 균일하게 혼합하면 본 발명물질이 완성된다.A process step of melting 50 parts by weight of bauxite at 850 ° C with a flux (10 parts by weight of NaOH + 30 parts by weight of CaO); Adding a diluted nitric acid solution at a concentration of about 10% to form a slurry, and then adjusting the pH of the solution to 6 to 8; A process step of adding 10 parts by weight of silica fume thereto; The material of the present invention is completed by uniformly mixing the material obtained through the process step of evaporating and drying the mixture and firing at 600 ° C. for 4 hours.

이와같이 제조된 본 발명물질 10중량부에 일반 흙이나 황토 90중량부를 혼합하여이를 그대로 구조물의 시공에 사용하면된다.10 parts by weight of the present invention prepared as described above, mixed with 90 parts by weight of ordinary soil or loess may be used for the construction of the structure as it is.

실시예 1Example 1

이하 본 발명과 관련된 실시예를 나타내지만 이에 본 발명의 범주가 한정되는 것은 아니다.Hereinafter, examples related to the present invention are shown, but the scope of the present invention is not limited thereto.

석회석 500g과 점토 250g을 혼합하고 이를 1100℃에서 1시간동안 소성시켜 물질A를 제조한다.500 g of limestone and 250 g of clay are mixed and calcined at 1100 ° C. for 1 hour to prepare material A.

NaOH 50g 과 CaO 150g 을 혼합한것을 보오크사이트(Al2O3 함량 68%) 200g과 함께 850℃에서 40분동안 용융시킨다. 이혼합물을 식힌후 여기에 10% 질산 350ml정도를 가하면 슬러리상의 pH가 대략 7∼8사이가 된다. 여기에 실리카흄 60g을 가하고 균일하도록 혼합하여 물질B를 제조한다.A mixture of 50 g of NaOH and 150 g of CaO was melted at 850 ° C. for 40 minutes with 200 g of bauxite (68% Al 2 O 3 content). After cooling the mixture, about 350 ml of 10% nitric acid is added to bring the pH of the slurry to approximately 7-8. To this, 60 g of silica fume was added and mixed to make a substance B.

물질A와 물질B를 균일하게 혼합하면 본 발명에서 목적하는 물질 860g 정도가 얻어지며 이는 다음과 같은 조성으로 이루어져있다.The uniform mixing of substance A and substance B yields about 860 g of the substance of interest in the present invention, which consists of the following composition.

실시예 2Example 2

실시예1 의 공정방법에의해 제조한 물질 500g과 일반 황토 4500g을 혼합하여 공시체를 제작한후 1일후 이의 압축강도를 조사한 결과 268kgf/cm2을 나타내었다.500g of the material prepared by the process method of Example 1 and 4500g of normal loess were mixed to prepare a specimen, and after 1 day, the compressive strength of the material was 268kgf / cm2.

본 발명은 석회석이나 점토, 보오크사이트등을 원료로하여 칼슘, 알루미늄, 규소화합물의 혼합물로 이루어진 새로운진 물질을 제조하여 이를 속경성 흙경화제의제조원료로서 사용하는 것이다. 본 물질을 10%내외만 흙에 혼합하여도 매우 고강도가 발현되며 제품의 균열도 발생하지않는다. 또한, 속경성을 나타내어 작업의 시간을 줄일수있다.The present invention is to prepare a new material consisting of a mixture of calcium, aluminum, silicon compounds using limestone, clay, bauxite, etc. as a raw material and to use it as a raw material for the fast curing soil hardener. Even if 10% of this material is mixed in soil, it shows very high strength and there is no cracking of the product. In addition, it shows fastness and can reduce work time.

Claims (2)

속경성 흙 경화제를 제조하는 다음과 같은 공정방법.The following process method for preparing a hard soil soil hardener. 석회석100중량부와 점토 50중량부를 혼합한후 이를 1100℃에서 1시간∼2시간동안 소성시켜서 얻어진 물질에 다음과 같은 공정단계를 거쳐 제조된물질A를 혼합함.100 parts by weight of limestone and 50 parts by weight of clay are mixed and calcined at 1100 ° C. for 1 to 2 hours to mix the material A prepared through the following process steps. (물질A: 보오크사이트 50중량부를 융제(NaOH 10중량부 + CaO 30중량부)와 함께 850℃에서 용융시키는 공정단계; 여기에 10% 내외의 농도로 묽힌 질산용액을 가하여 슬러리 상태로 만든후 액의 pH를 6∼8로 조절하는 공정단계; 여기에 실리카흄 10중량부를 가하는 공정단계; 혼합물을 증발 건고시키고 600℃에서 4시간동안 소성시키는 공정단계를 통해 얻어진 물질) (Material A : 50 parts by weight of bauxite is melted at 850 ° C with flux (10 parts by weight of NaOH + 30 parts by weight of CaO); A process step of adjusting the pH of the liquid to 6 to 8; a process step of adding 10 parts by weight of silica fume; a material obtained through a process step of evaporating and drying the mixture and firing at 600 ° C for 4 hours) 청구항1의 공정에의해 얻어진 제품을 흙이나 황토에 10∼20%혼합하여 사용하는 사항Matters used by mixing 10 to 20% of products obtained by the process of claim 1 with soil or loess
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR850004508A (en) * 1983-12-20 1985-07-15 신또오 히사시 Adhesive material injection device and method for injecting adhesive material into cracks of concrete structures
JPH101346A (en) * 1996-06-18 1998-01-06 Mitsubishi Materials Corp Single powder type polymer cement composition for half deflective pavement
WO2001090021A1 (en) * 2000-05-25 2001-11-29 Sumitomo Osaka Cement Co., Ltd. Thermoplastic hydraulic composition, formed product prepared from the composition by hardening through hydration thereof, and method for preparing the formed product
KR20030010976A (en) * 2001-07-28 2003-02-06 씨엠씨 코리아 주식회사 Environment-friendly inorganic soil-stabilizer with outstanding durability

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR850004508A (en) * 1983-12-20 1985-07-15 신또오 히사시 Adhesive material injection device and method for injecting adhesive material into cracks of concrete structures
JPH101346A (en) * 1996-06-18 1998-01-06 Mitsubishi Materials Corp Single powder type polymer cement composition for half deflective pavement
WO2001090021A1 (en) * 2000-05-25 2001-11-29 Sumitomo Osaka Cement Co., Ltd. Thermoplastic hydraulic composition, formed product prepared from the composition by hardening through hydration thereof, and method for preparing the formed product
KR20030010976A (en) * 2001-07-28 2003-02-06 씨엠씨 코리아 주식회사 Environment-friendly inorganic soil-stabilizer with outstanding durability

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