A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CONCRETE COMPOSITION AND METHOD OF PRODUCING CONCRETE COMPOSITION
PROBLEM TO BE SOLVED: To provide a concrete composition which is reduced in dry shrinkage strain and has high compression strength and its production method.SOLUTION: A concrete composition comprises fine aggregate containing hard sandstone, coarse aggregate, a cement and water and has a wt. average grain size D50 of the hard sandstone contained in the fine aggregate of the concrete composition of greater than 0.85 mm. A method of producing a concrete composition is based on kneading fine aggregate containing hard sandstone, coarse aggregate, a cement and water together and includes adjustment of the grain sizes of the hard sandstone so that the wt. average grain size D50 of the sandstone contained in the whole of the fine aggregate becomes greater than 0.85 mm.
【課題】乾燥収縮ひずみが低減された、圧縮強度の高いコンクリート組成物及び該コンクリート組成物の製造方法を提供する。【解決手段】硬質砂岩を含む細骨材と、粗骨材と、セメントと、水とを含むコンクリート組成物であって、コンクリート組成物中の細骨材全体に含まれる硬質砂岩の重量平均粒径Ｄ５０が０．８５ｍｍを超えることを特徴とするコンクリート組成物、及び、硬質砂岩を含む細骨材と、粗骨材と、セメントと、水とを混練するコンクリート組成物の製造方法であって、細骨材全体に含まれる硬質砂岩の重量平均粒径Ｄ５０が０．８５ｍｍを超えるように該硬質砂岩の粒径を調整するコンクリート組成物の製造方法。【選択図】なし
CONCRETE COMPOSITION AND METHOD OF PRODUCING CONCRETE COMPOSITION
PROBLEM TO BE SOLVED: To provide a concrete composition which is reduced in dry shrinkage strain and has high compression strength and its production method.SOLUTION: A concrete composition comprises fine aggregate containing hard sandstone, coarse aggregate, a cement and water and has a wt. average grain size D50 of the hard sandstone contained in the fine aggregate of the concrete composition of greater than 0.85 mm. A method of producing a concrete composition is based on kneading fine aggregate containing hard sandstone, coarse aggregate, a cement and water together and includes adjustment of the grain sizes of the hard sandstone so that the wt. average grain size D50 of the sandstone contained in the whole of the fine aggregate becomes greater than 0.85 mm.
【課題】乾燥収縮ひずみが低減された、圧縮強度の高いコンクリート組成物及び該コンクリート組成物の製造方法を提供する。【解決手段】硬質砂岩を含む細骨材と、粗骨材と、セメントと、水とを含むコンクリート組成物であって、コンクリート組成物中の細骨材全体に含まれる硬質砂岩の重量平均粒径Ｄ５０が０．８５ｍｍを超えることを特徴とするコンクリート組成物、及び、硬質砂岩を含む細骨材と、粗骨材と、セメントと、水とを混練するコンクリート組成物の製造方法であって、細骨材全体に含まれる硬質砂岩の重量平均粒径Ｄ５０が０．８５ｍｍを超えるように該硬質砂岩の粒径を調整するコンクリート組成物の製造方法。【選択図】なし
CONCRETE COMPOSITION AND METHOD OF PRODUCING CONCRETE COMPOSITION
コンクリート組成物及びコンクリート組成物の製造方法
YAMADA KAZUNORI (author) / MUTO TAKAHIKO (author)
2015-11-02
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
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