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A platform for research: civil engineering, architecture and urbanism
One component type environment-friendly quick-hardening grout composition for tunnel grouting reinforcement with steel pipe and tunnel grouting reinforcement method using the same
The present invention relates to an eco-friendly fast-hardening grout composition for multi-stage reinforcement of one-component type tunnel steel pipe and a multi-stage reinforcement method for a tunnel steel pipe using the same. The eco-friendly fast-hardening grout composition for multi-stage reinforcement of one-component type tunnel steel pipe comprises water and cement at a water-cement ratio (W/C) of 0.70 to 0.90 and contains 10 to 30 parts by weight of a performance improving admixture based on 100 parts by weight of the cement. The performance improving admixture comprises 50 to 80 parts by weight of calcium fluorite smelting by-product, 50 to 80 parts by weight of fermented paper mill sludge, 30 to 60 parts by weight of anhydrite, 10 to 30 parts by weight of molybdenum disulfide powder, 10 to 30 parts by weight of CSA (Calcium Sulfo-Aluminate), 1 to 10 parts by weight of lupeol, 0.1 to 5 parts by weight of sodium sulfate, 0.1 to 5 parts by weight of sodium carbonate, and 0.1 to 5 parts by weight of tartaric acid, based on 100 parts by weight of amorphous calcium aluminate (C12A7). The fermented paper mill sludge is used by inoculating paper mill sludge against Curtobacterium oceanosedimentum and fermenting the same. As a one-component type, it is possible to secure pot life and fluidity, so the present invention has excellent work efficiency, while fast hardening and high early compressive strength can be expressed. There is no dilution or leakage by groundwater, so the present invention is eco-friendly.
본 발명은 일액형 타입의 터널강관다단 보강용 친환경 속경성 그라우트 조성물로서, 0.70 내지 0.90의 물-시멘트비(water cement ratio, W/C)로 물 및 시멘트를 포함하고, 상기 시멘트 100 중량부에 대하여, 10 내지 30 중량부의 성능개선 혼화제를 포함하고, 상기 성능개선 혼화제는 비정질 칼슘알루미네이트(C12A7) 100 중량부에 대하여, 칼슘 플로라이트 제련부산물 50 내지 80 중량부, 발효 제지슬러지 50 내지 80 중량부, 무수석고 30 내지 60 중량부, 이황화 몰리브덴 분체 10 내지 30 중량부, CSA(Calcium Sulfo-Aluminate) 10 내지 30 중량부, 루페올 1 내지 10 중량부, 황산나트륨 0.1 내지 5 중량부, 탄산나트륨 0.1 내지 5 중량부 및 주석산 0.1 내지 5 중량부를 포함하는 것이고, 상기 발효 제지슬러지는 제지슬러지에 쿠르토박테리아 오세아노세디멘텀(Curtobacterium oceanosedimentum)을 접종하여, 발효시킨 것을 사용하여; 일액형 타입으로 가사시간 및 유동성을 확보할 수 있어 작업 효율성이 우수하면서도, 속경성과 높은 조기 압축강도 발현이 가능할 뿐만 아니라, 지하수에 의한 희석이나 누출이 없어 친환경적인 터널강관다단 보강용 친환경 속경성 그라우트 조성물 및 이를 이용한 터널강관다단 보강공법에 관한 것이다.
One component type environment-friendly quick-hardening grout composition for tunnel grouting reinforcement with steel pipe and tunnel grouting reinforcement method using the same
The present invention relates to an eco-friendly fast-hardening grout composition for multi-stage reinforcement of one-component type tunnel steel pipe and a multi-stage reinforcement method for a tunnel steel pipe using the same. The eco-friendly fast-hardening grout composition for multi-stage reinforcement of one-component type tunnel steel pipe comprises water and cement at a water-cement ratio (W/C) of 0.70 to 0.90 and contains 10 to 30 parts by weight of a performance improving admixture based on 100 parts by weight of the cement. The performance improving admixture comprises 50 to 80 parts by weight of calcium fluorite smelting by-product, 50 to 80 parts by weight of fermented paper mill sludge, 30 to 60 parts by weight of anhydrite, 10 to 30 parts by weight of molybdenum disulfide powder, 10 to 30 parts by weight of CSA (Calcium Sulfo-Aluminate), 1 to 10 parts by weight of lupeol, 0.1 to 5 parts by weight of sodium sulfate, 0.1 to 5 parts by weight of sodium carbonate, and 0.1 to 5 parts by weight of tartaric acid, based on 100 parts by weight of amorphous calcium aluminate (C12A7). The fermented paper mill sludge is used by inoculating paper mill sludge against Curtobacterium oceanosedimentum and fermenting the same. As a one-component type, it is possible to secure pot life and fluidity, so the present invention has excellent work efficiency, while fast hardening and high early compressive strength can be expressed. There is no dilution or leakage by groundwater, so the present invention is eco-friendly.
본 발명은 일액형 타입의 터널강관다단 보강용 친환경 속경성 그라우트 조성물로서, 0.70 내지 0.90의 물-시멘트비(water cement ratio, W/C)로 물 및 시멘트를 포함하고, 상기 시멘트 100 중량부에 대하여, 10 내지 30 중량부의 성능개선 혼화제를 포함하고, 상기 성능개선 혼화제는 비정질 칼슘알루미네이트(C12A7) 100 중량부에 대하여, 칼슘 플로라이트 제련부산물 50 내지 80 중량부, 발효 제지슬러지 50 내지 80 중량부, 무수석고 30 내지 60 중량부, 이황화 몰리브덴 분체 10 내지 30 중량부, CSA(Calcium Sulfo-Aluminate) 10 내지 30 중량부, 루페올 1 내지 10 중량부, 황산나트륨 0.1 내지 5 중량부, 탄산나트륨 0.1 내지 5 중량부 및 주석산 0.1 내지 5 중량부를 포함하는 것이고, 상기 발효 제지슬러지는 제지슬러지에 쿠르토박테리아 오세아노세디멘텀(Curtobacterium oceanosedimentum)을 접종하여, 발효시킨 것을 사용하여; 일액형 타입으로 가사시간 및 유동성을 확보할 수 있어 작업 효율성이 우수하면서도, 속경성과 높은 조기 압축강도 발현이 가능할 뿐만 아니라, 지하수에 의한 희석이나 누출이 없어 친환경적인 터널강관다단 보강용 친환경 속경성 그라우트 조성물 및 이를 이용한 터널강관다단 보강공법에 관한 것이다.
One component type environment-friendly quick-hardening grout composition for tunnel grouting reinforcement with steel pipe and tunnel grouting reinforcement method using the same
일액형 타입의 터널강관다단 보강용 친환경 속경성 그라우트 조성물 및 이를 이용한 터널강관다단 보강공법
HONG GYEONG JA (author) / LEE SANG OK (author) / WOO YANG YI (author) / CHOI YOUNG SHIN (author)
2021-01-11
Patent
Electronic Resource
Korean
IPC:
C09K
Materialien für Anwendungen, soweit nicht anderweitig vorgesehen
,
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR
/
C01G
Verbindungen der von den Unterklassen C01D oder C01F nicht umfassten Metalle
,
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
/
C04B
Kalk
,
LIME
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