A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
ANTI-WASHOUT UNDERWATER CONCRETE COMPOSITION AND CURED BODY THEREOF
PROBLEM TO BE SOLVED: To provide an anti-washout underwater concrete composition which has better development of initial strength than conventional anti-washout underwater concrete compositions, has small difference of strengths when cured in water and air and has excellent workability.SOLUTION: There is provided the anti-washout underwater concrete composition which comprises cement, an expansive admixture, an accelerator and a thickener and in which Blaine specific surface area of the expansive admixture is 4,000 cm/g to 7,000 cm/g, blended amount of the expansive admixture is 10 to 30 kg/mby unit amount and blended amount of the accelerator is 10 to 40 kg/mby unit amount.SELECTED DRAWING: None
【課題】従来の水中不分離性コンクリート組成物よりも初期強度の発現性が良好であり、水中および気中で硬化させた場合の強度の差が小さく、かつ、ワーカビリティーに優れる水中不分離性コンクリート組成物を提供する。【解決手段】セメントと、膨張材と、促進剤と、増粘剤とを含む水中不分離性コンクリート組成物であって、膨張材のブレーン比表面積が４，０００ｃｍ２／ｇ〜７，０００ｃｍ２／ｇであり、膨張材の配合量が、単位量で１０〜３０ｋｇ／ｍ３であり、かつ促進剤の配合量が、単位量で１０〜４０ｋｇ／ｍ３であることを特徴とする、水中不分離性コンクリート組成物である。【選択図】なし
ANTI-WASHOUT UNDERWATER CONCRETE COMPOSITION AND CURED BODY THEREOF
PROBLEM TO BE SOLVED: To provide an anti-washout underwater concrete composition which has better development of initial strength than conventional anti-washout underwater concrete compositions, has small difference of strengths when cured in water and air and has excellent workability.SOLUTION: There is provided the anti-washout underwater concrete composition which comprises cement, an expansive admixture, an accelerator and a thickener and in which Blaine specific surface area of the expansive admixture is 4,000 cm/g to 7,000 cm/g, blended amount of the expansive admixture is 10 to 30 kg/mby unit amount and blended amount of the accelerator is 10 to 40 kg/mby unit amount.SELECTED DRAWING: None
【課題】従来の水中不分離性コンクリート組成物よりも初期強度の発現性が良好であり、水中および気中で硬化させた場合の強度の差が小さく、かつ、ワーカビリティーに優れる水中不分離性コンクリート組成物を提供する。【解決手段】セメントと、膨張材と、促進剤と、増粘剤とを含む水中不分離性コンクリート組成物であって、膨張材のブレーン比表面積が４，０００ｃｍ２／ｇ〜７，０００ｃｍ２／ｇであり、膨張材の配合量が、単位量で１０〜３０ｋｇ／ｍ３であり、かつ促進剤の配合量が、単位量で１０〜４０ｋｇ／ｍ３であることを特徴とする、水中不分離性コンクリート組成物である。【選択図】なし
ANTI-WASHOUT UNDERWATER CONCRETE COMPOSITION AND CURED BODY THEREOF
水中不分離性コンクリート組成物およびその硬化体
NAGASHIO YASUHIRO (author) / TACHIKAWA NORIHISA (author) / KONUMA TAKAHITO (author)
2017-02-09
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
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