KR960030736A - Process for producing hardening agent by chemical hybrid hybridization (C.C.H) - Google Patents

Process for producing hardening agent by chemical hybrid hybridization (C.C.H) Download PDF

Info

Publication number
KR960030736A
KR960030736A KR1019950000884A KR19950000884A KR960030736A KR 960030736 A KR960030736 A KR 960030736A KR 1019950000884 A KR1019950000884 A KR 1019950000884A KR 19950000884 A KR19950000884 A KR 19950000884A KR 960030736 A KR960030736 A KR 960030736A
Authority
KR
South Korea
Prior art keywords
chemical
added
mixed
aqueous solution
ratio
Prior art date
Application number
KR1019950000884A
Other languages
Korean (ko)
Other versions
KR970010291B1 (en
Inventor
이서우
이상헌
양용호
Original Assignee
이서우
이상헌
양용호
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 이서우, 이상헌, 양용호 filed Critical 이서우
Priority to KR1019950000884A priority Critical patent/KR970010291B1/en
Publication of KR960030736A publication Critical patent/KR960030736A/en
Application granted granted Critical
Publication of KR970010291B1 publication Critical patent/KR970010291B1/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/24Compositions 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 alkyl, ammonium or metal silicates; containing silica sols
    • C04B28/26Silicates of the alkali metals
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00Use 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
    • C04B18/04Waste materials; Refuse
    • C04B18/14Waste materials; Refuse from metallurgical processes
    • C04B18/141Slags
    • C04B18/142Steelmaking slags, converter slags
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B22/00Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/06Oxides, Hydroxides
    • C04B22/062Oxides, Hydroxides of the alkali or alkaline-earth metals
    • C04B22/064Oxides, Hydroxides of the alkali or alkaline-earth metals of the alkaline-earth metals
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B22/00Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/08Acids or salts thereof
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B22/00Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/08Acids or salts thereof
    • C04B22/14Acids or salts thereof containing sulfur in the anion, e.g. sulfides
    • C04B22/142Sulfates
    • C04B22/148Aluminium-sulfate
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24Macromolecular compounds
    • C04B24/26Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B24/2623Polyvinylalcohols; Polyvinylacetates
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions 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 hydraulic cements other than calcium sulfates
    • C04B28/04Portland cements
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/28Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

Abstract

가. 발명이 속하는 기술분야.end. The technical field to which the invention belongs.

신결합제를 사용한 화락 혼성 교배법{Castable Chemical Hybride(C.C.H)}법에 의한 경화제 제조방법.Method for producing a curing agent by Hakrak hybrid mating method using a new binder [Castable Chemical Hybride (C.C.H)] method.

나.발명이 해결하고자 하는 기술적 과제.B. Technical problem to be solved.

본 발명은 새로 개발된 결합재를 사용하여 소성 하지않고 화학적으로 여러가지 물질을 혼성하여 경화체를 만드는 방법에 관한 것이다.The present invention relates to a method of producing a cured body by chemically mixing various materials without firing using a newly developed binder.

다. 발명의 해결방법의 요지.All. Summary of the Solution of the Invention.

0.2%의 알깅산 소다(Na-alginate) 100㏄수용액에 가용성 실리카(silica) 1g을 넣어 혼합하여 이에 물유리(water glass) 100㏄와 리그노황산 소다(Na-Ligno sulfate) 1g의 수용액과 소듐 트리폴리포시페이트(Na-tripolyphosphate) 0.5g의 수용액을 첨가하여 공용시킨 다음 염기성 삭산 알루미늄(basic aluminum oxy acetate) 1g의 수용액을 첨가하고 쉐어링 믹서(shearing mixer)로 혼합, 용해시켜 결합체 Leecom-Al(L-Ai)를 완성하고 10메쉬(mesh) 통과분인 고로 슬래그(slag)와 포트랜드 시멘트(portland cement(P.C))를 3:1의 배합비로 평취하여 혼합하고 최적의 플로우(Flow)값을 찾아서 여기에 상기 결합재 L-Ai을 10~15% 첨가하여 쉐어링 믹서(Shearing mixer)로 혼합시킨 다음 이를 프레스성형하여 공기중에 20~24시간 보관하고 다시 하룻동안(약 24시간) 자연건조, 양생시켜서 된 것에 요지가 있음.100 g of 0.2% sodium alginate (Na-alginate) solution is mixed with 1 g of soluble silica, which is then mixed with 100 g of water glass and 1 g of Na-Ligno sulfate and sodium tripoli. Aqueous solution of 0.5 g of Na-tripolyphosphate was added to the solution, followed by addition of 1 g of basic aluminum oxy acetate, followed by mixing and dissolving with a shearing mixer. Ai) is completed, and the blast furnace slag and portland cement (PC), which are 10 mesh passes, are flattened and mixed at a ratio of 3: 1, and the optimum flow value is found here. 10 to 15% of the binder L-Ai was added and mixed in a shearing mixer, which was press-molded, stored in air for 20 to 24 hours, and then dried and cured for one day (about 24 hours). In there.

라. 발명의 중요한 용도.la. Important use of the invention.

항만공사용 재료, 도로포장공사용 재료, 철도노반 강화용재료 및 샌드 파일(Sand pile)용도.Port work materials, road pavement materials, railway roadbed reinforcement materials and sand piles.

Description

화학 혼성 교배법{Castable Chemical Hybride(C.C.H)}에 의한 경화제 제조방법Process for producing hardening agent by chemical hybrid hybridization (C.C.H)

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (9)

0.2%의 알깅산 소다(Na-alginate) 100cc수용액에 가용성 실리카(silica) 1g을 넣어 혼합하고 이에 물유리(water glass) 100cc와 리그노황산 소다(Na-Ligno sulfate) 1g의 수용액과 소듐 트리폴리포시페이트(Na-tripolyphosphate) 0.5g의 수용액을 첨가하여 공용시킨 다음 염기성 삭산 알루미늄(basic aluminum oxy accetate) 1g의 수용액을 첨가하고 쉐어링 믹서(shearing mixer)로 혼합, 용해시켜 결합체 Leecom-Ai(L-Ai)를 완성하고 10메쉬 (mesh) 통과분인 고로 슬래그(slag)와 포트랜드 시멘트(portland cement(P.C))를 3:1의 배합비로 평취하여 혼합하고 최적의 플로우(Flow)값을 찾아서 여기에 상기 결합재 L-Ai을 10-15% 첨가하여 쉐어링 믹서(Shearing mixer)로 혼합시킨 다음 이를 프레스성형하여 공기중에 20-24시간 보관하고 다시 하룻동안 자연건조, 양생시켜서 된 것에 특징이 있는 화학 혼성 교배법{Castable Chemical Hybride(C.C.H)}법에 의한 경화제 제조방법.1 g of soluble silica is mixed with 100 cc aqueous solution of 0.2% Na-alginate, and aqueous solution of 100 g water glass and 1 g Na-Ligno sulfate and sodium tripolyphosphate (Na-tripolyphosphate) 0.5g aqueous solution was added and shared, then 1g basic aluminum oxy accetate aqueous solution was added, mixed and dissolved with a shearing mixer Leecom-Ai (L-Ai) And blast furnace slag and portland cement (PC), which are 10 mesh passes, are mixed in a ratio of 3: 1 and mixed to find an optimal flow value. 10-15% L-Ai is added and mixed in a shearing mixer, which is press-molded and stored in air for 20-24 hours, followed by natural drying and curing for one day. Castable chemical Method for producing a curing agent by the Hybride (C.C.H)} method. 제1항에 있어서: 고로 슬래그(slag)와 포트랜드 시멘트(portland cement)의 배합비를 중량비로 4:1 로 조정, 성형한 것에특징이 있는 화학 혼성 교배법{Castable Chemical Hybride(C.C.H)}법에 의한 경화체 제조방법.The method according to claim 1, characterized in that the mixing ratio of blast furnace slag and portland cement is adjusted to 4: 1 by weight, and formed by the Castable Chemical Hybride (CCH) method. Hardened body manufacturing method. 제1항 또는 제2항에 있어서; 0.2% 포리비닐 알콜(PVA) 1000cc 수용액에 황산 알루미늄(Alunium sulfate) 1g을 첨가하여 혼합하고, 여기에 다시 염화 칼슘(CaCl) 1g를 혼합하여 리그노황산 소다(Na-Ligno sulfate) 1g 수용액과 물유리(water glass) 100cc를 첨가한 결합재 Leecom-PVA(PVA)를 사용한 것에 특징이 있는 화학 혼성 교배법{Castable Chemical Hybride(C.C.H)}법에 의한 경화체 제조방법.The method of claim 1 or 2; 1 g of aluminum sulfate was added to a 1000 cc solution of 0.2% polyvinyl alcohol (PVA), followed by mixing 1 g of calcium chloride (CaCl), followed by mixing 1 g of aqueous solution of l-naigno sulfate and water glass (Water glass) A method for producing a cured product by the chemical hybrid crossing method (CCH) method characterized by using a binder Leecom-PVA (PVA) to which 100 cc is added. 제1항 또는 제2항에 있어서; 0.2%의 알깅산 소다(Na-Alginate) 1000cc 수용액에 황산 알루미늄 (Alumium Sulfate) 1g 수용액과 염화 칼슘(CaCl) 1g 수용액을 첨가한 것에 물유리(water glass) 1000cc에 리그노황산 소다(Na-Lignosulfate) 1g수용액과 소듐 트리폴리포시페이트(Na-tripolyphosphate) 0.5g 수용액을 첨가한 것과 혼합한 결합재 Leecom-V(L-V)와 고로(高爐)슬래그(slag)와 포트랜드 시멘트(portland cement)의 배합비를 중량비로 4:1로 조정, 성형한 것에 특징이 있는 화학 혼성 교배법{Castable Chemical Hybrice(C.C.H)}법에 의한 경화체 제조방법.The method of claim 1 or 2; 1000g aqueous solution of 0.2% Na-Alginate and 1g aqueous solution of Aluminum Sulfate and 1g aqueous solution of calcium chloride (CaCl) were added to the water glass 1000cc Na-Lignosulfate. The mixing ratio of Leecom-V (LV), blast furnace slag and portland cement, mixed with 1g aqueous solution and 0.5g aqueous solution of sodium tripolyphosphate, was added. A method for producing a cured product by a chemical hybrid crossover method (CCH) method characterized by adjusting to 1 and molding. 제1항 또는 제4항에 있어서; 결합재 Leecom-V(L-V)에 고로 슬래그(slag) 200g에 생석회(Quick lime(Q.L)); 석고(Gypsum){부산물(by products GYP(b.p)}의 배합비를 1:2로 하여 상기 비율에 대하여 2%의 황산 소다 (sodium, sulfate(S.S))를 첨가하고 다시 여기에 생석회 (Quicked lime): 화학 석고 (Chemical Gypsum(C-GYP))의 배합비를 1:2로 하여 이 비율에 대하여 2%의 황산 소다(Sodium sulfate)를 약 20g정도 혼합하여 성형한 것에 특징이 있는 화학 혼성 교배법 {Castable Chemical Hybride(C.C.H)}법에 의한 경화체 제조방법.The method of claim 1 or 4; Fast lime (Q.L) in 200g of blast furnace slag (Lim) Leecom-V (L-V); Gypsum {by products GYP (bp)} in a ratio of 1: 2 was added to 2% of sodium sulfate (sodium, sulfate (SS)) with respect to the above ratio and again lime quickened (Quicked lime) : Chemical hybridization method characterized by mixing about 20g of 2% sodium sulfate in this ratio with the chemical gypsum (C-GYP) ratio of 1: 2. Method for producing a cured product by the Castable Chemical Hybride (CCH) method. 제1,3 또는 제5항에 있어서; 고로 슬래그(slag)와 포트랜드 시멘트(portland cement)의 배합비는 중량비로 4:1로 조정하고 결합재는 Leecom-PVA(L-PVA)를 사용하며 생석회(Quicked lime)대신에 소석회(slaked lime)를 사용한 것에 특징이 있는화학 혼성 교배법 {Castable Chemical Hybride(C.C.H)}법에 의한 경화체 제조방법.The method of claim 1, 3 or 5; The mixing ratio of the blast furnace slag and portland cement is adjusted to 4: 1 by weight, the binder is Leecom-PVA (L-PVA), and slaked lime is used instead of quick lime. A method for producing a cured product by the chemical hybridization method (CCH) method characterized by the above. 제1 또는 제4항에 있어서; 결합재 Leecom-V(L-V)를 사용하며, 슬래그(slag) 200g에 소석회(slacked lime): 부산물 석고(by-product-Gypsum)의 배합비를 1:1로하고 이 비에 대하여 2%의 황산 소다(sodium sulfate(S.S))를 첨가한 것에 특징이있는 화학 혼성 교배법 {Castable Chemical Hybride(C.C.H)}법에 의한 경화체 제조방법.The method of claim 1 or 4; The binder Leecom-V (LV) is used, and the ratio of slag lime to by-product-Gypsum is 1: 1 in 200 g of slag, and 2% of sodium sulfate is used for this ratio. A method for producing a cured product by the chemical hybridization method (CCH) method characterized by the addition of sodium sulfate (SS)). 결합재는 Leecom-Al(L-Al)를 사용하고 고로 슬래그(slag) 200g에 소석회(slacked lime) : 부산물 석고(by-product-Gypsum)의 배합비를 1:1로 한 것을 50g 첨가하여 혼합한 것을 특징으로 하는 화학 혼성교배법{Castable Chemical Hybride(C.C.H)}법에 의한 경화체 제조방법.As the binder, Leecom-Al (L-Al) was used and 200g of blast furnace slag was added to 50 g of slacked lime: by-product-Gypsum. A method for producing a cured product by the Chemical Hybriding Method (Castable Chemical Hybride) method characterized in that the method. 제1항에 있어서; 결합재 Leecom-Al(L-Al)를 사용하고 고로 슬래그(slag) 200g에 소석회(slacked lime) : 부산물 석고(by-product-Gypsum)의 배합비를 2:1로 한 것을 50g 첨가하여 혼합한 것을 특징으로 하는 화학 혼성 교배법{Castable Chemical Hybride(C.C.H)}법에 의한 경화체 제조방법.The method of claim 1; The binder Leecom-Al (L-Al) is used and 200g of slag (slag) slag (slacked lime): By-product gypsum (by-product-Gypsum) in a ratio of 2: 1 50g was added and mixed The hardened body manufacturing method by the chemical hybridization method (CCH) method which uses. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950000884A 1995-01-17 1995-01-17 Castable Chemical Hybride(C,C,H) KR970010291B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950000884A KR970010291B1 (en) 1995-01-17 1995-01-17 Castable Chemical Hybride(C,C,H)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950000884A KR970010291B1 (en) 1995-01-17 1995-01-17 Castable Chemical Hybride(C,C,H)

Publications (2)

Publication Number Publication Date
KR960030736A true KR960030736A (en) 1996-08-17
KR970010291B1 KR970010291B1 (en) 1997-06-25

Family

ID=19406956

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950000884A KR970010291B1 (en) 1995-01-17 1995-01-17 Castable Chemical Hybride(C,C,H)

Country Status (1)

Country Link
KR (1) KR970010291B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200001073U (en) 2018-11-16 2020-05-26 강미현 Fluorescence revelation type album
CN116396098A (en) * 2023-04-20 2023-07-07 南通市建设混凝土有限公司 Thermal insulation concrete and preparation process thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200001073U (en) 2018-11-16 2020-05-26 강미현 Fluorescence revelation type album
CN116396098A (en) * 2023-04-20 2023-07-07 南通市建设混凝土有限公司 Thermal insulation concrete and preparation process thereof
CN116396098B (en) * 2023-04-20 2023-11-14 南通市建设混凝土有限公司 Thermal insulation concrete and preparation process thereof

Also Published As

Publication number Publication date
KR970010291B1 (en) 1997-06-25

Similar Documents

Publication Publication Date Title
CN105731942B (en) Cement-base composite material for 3D printing and its preparation method and application
US5601643A (en) Fly ash cementitious material and method of making a product
CN113149530B (en) Red mud modified foam light soil and preparation method and application thereof
CN101182139A (en) Masonry cement having higher strength and water retention
CN110002824A (en) A kind of non-burning brick and its production method
CN107602023A (en) A kind of high volume fly ash concrete and preparation method thereof
CN103482898A (en) Thickening time control agent used for gypsum mortar, and preparation method thereof
CN106946513B (en) A kind of normal temperature solidified geopolymer and its application
CN107117856A (en) Pure pulvis pervious concrete reinforcing agent and its application method with nanometer humidification
JP3511287B2 (en) Soil hardener composition and method for producing the same
CN107892531A (en) The production method of tunnel cement mortar
CN110436801A (en) A kind of highly resistance folding composite Portland cement and preparation method
CN104108897A (en) Concrete expanding agent
KR101473228B1 (en) The composition of solidificant having highstrength and rapid solidification
CN116835949A (en) High-doping-amount and high-strength electrolytic manganese slag-based environment-friendly baking-free brick and preparation method thereof
CN115403350B (en) Artificial fish reef material prepared from incineration slag and method for preparing fish reef by using artificial fish reef material
KR960030736A (en) Process for producing hardening agent by chemical hybrid hybridization (C.C.H)
CN101786848B (en) Gypsum-based composite hydraulic curing agent and gypsum-based composite hydraulic curing block
CN107226676A (en) A kind of coal slime, coal gangue concrete and its modulator approach
CN103570308B (en) A kind of flyash in great mixed amount GHPC accelerating setting and harden
CN114524654A (en) Phosphogypsum lightweight concrete and preparation method thereof
CN111807739A (en) Fast-setting brucite-phosphate-based cementing material and preparation method and application thereof
CN110128091A (en) A kind of novel energy-saving environment-friendly mortar and its production method
CN109294589A (en) A kind of nanometer of soil-solidified-agent and preparation method thereof
CN115583827B (en) Plastic early-strength type synchronous grouting material for shield tunnel and preparation method thereof

Legal Events

Date Code Title Description
A201 Request for examination
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee