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A platform for research: civil engineering, architecture and urbanism
CEMENT COMPOSITION, MANUFACTURING METHOD THEREOF, AND MANUFACTURING METHOD OF FLY ASH FOR CEMENT COMPOSITION
PROBLEM TO BE SOLVED: To provide a cement composition including fly ash capable of maintaining those characteristics necessary as an admixture such as improving of a flowability and contribution to a strength development property even when all of raw material fly ash obtained from a coal-fired power plant etc. is used as an admixture without removing coarse powder by classification, and contributing to a long-term strength development property, and a manufacturing method thereof, and further, a manufacturing method of fly ash for the cement composition.SOLUTION: The cement composition comprises cement and fly ash, in which the fly ash content is 30 mass% or less, and the fly ash satisfies the following formula (I) in volume-based particle size distribution. 0.24<(D50-D10)/(D90-D50)≤0.5 (I) (where, D10, D50, and D90 respectively represent a particle diameter corresponding to a cumulative frequency of 10%, a cumulative frequency of 50%, and a cumulative frequency of 90%, from a small diameter side of the fly ash.SELECTED DRAWING: None
【課題】流動性の向上、強度発現性の寄与などの混和材料として特性を維持し、分級によって粗粉を除去することなく、石炭火力発電所などから得られる原料フライアッシュの全てを混和材料として使用することができ、長期の強度発現性の寄与も可能なセメント組成物、その製造方法、及びセメント組成物用フライアッシュの製造方法を提供する。【解決手段】セメントと、フライアッシュとを含み、該フライアッシュ含有量が３０質量％以下であり、該フライアッシュが体積基準の粒度分布において下記式（Ｉ）を満たすことを特徴とする、セメント組成物である。０．２４＜（Ｄ５０−Ｄ１０）／（Ｄ９０−Ｄ５０）≦０．５ （Ｉ）（式中、Ｄ１０、Ｄ５０、Ｄ９０は、それぞれ、フライアッシュの小径側からの累積頻度１０％、累積頻度５０％及び累積頻度９０％に相当する粒径を示す。）【選択図】なし
CEMENT COMPOSITION, MANUFACTURING METHOD THEREOF, AND MANUFACTURING METHOD OF FLY ASH FOR CEMENT COMPOSITION
PROBLEM TO BE SOLVED: To provide a cement composition including fly ash capable of maintaining those characteristics necessary as an admixture such as improving of a flowability and contribution to a strength development property even when all of raw material fly ash obtained from a coal-fired power plant etc. is used as an admixture without removing coarse powder by classification, and contributing to a long-term strength development property, and a manufacturing method thereof, and further, a manufacturing method of fly ash for the cement composition.SOLUTION: The cement composition comprises cement and fly ash, in which the fly ash content is 30 mass% or less, and the fly ash satisfies the following formula (I) in volume-based particle size distribution. 0.24<(D50-D10)/(D90-D50)≤0.5 (I) (where, D10, D50, and D90 respectively represent a particle diameter corresponding to a cumulative frequency of 10%, a cumulative frequency of 50%, and a cumulative frequency of 90%, from a small diameter side of the fly ash.SELECTED DRAWING: None
【課題】流動性の向上、強度発現性の寄与などの混和材料として特性を維持し、分級によって粗粉を除去することなく、石炭火力発電所などから得られる原料フライアッシュの全てを混和材料として使用することができ、長期の強度発現性の寄与も可能なセメント組成物、その製造方法、及びセメント組成物用フライアッシュの製造方法を提供する。【解決手段】セメントと、フライアッシュとを含み、該フライアッシュ含有量が３０質量％以下であり、該フライアッシュが体積基準の粒度分布において下記式（Ｉ）を満たすことを特徴とする、セメント組成物である。０．２４＜（Ｄ５０−Ｄ１０）／（Ｄ９０−Ｄ５０）≦０．５ （Ｉ）（式中、Ｄ１０、Ｄ５０、Ｄ９０は、それぞれ、フライアッシュの小径側からの累積頻度１０％、累積頻度５０％及び累積頻度９０％に相当する粒径を示す。）【選択図】なし
CEMENT COMPOSITION, MANUFACTURING METHOD THEREOF, AND MANUFACTURING METHOD OF FLY ASH FOR CEMENT COMPOSITION
セメント組成物、その製造方法、及びセメント組成物用フライアッシュの製造方法
KANAI KENSUKE (author) / MATSUDA HIDEAKI (author)
2018-11-29
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
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