Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
CEMENT COMPOSITION, AND METHOD OF PRODUCING CEMENT HARDENED BODY
To provide a cement composition that can be hardened in a shortened heating time and can produce a hardened body of high compression strength and flexural strength, and a method of producing a cement hardened body using the cement composition.SOLUTION: There is provided a cement composition according to the present invention comprising cement, silica fume of a BET surface area of 15 to 25 m/g, inorganic powder of 50% cumulative particle diameter of 0.8 to 5 μm, a lime-based expansion material, aggregate A of a maximum particle diameter of not larger than 1.2 mm, a metal fiber of a diameter of 0.01 to 1.0 mm and of a length of 2 to 30 mm, a high performance water reducing agent, a defoaming agent, and water, in which cement composition, the cement content is 55 to 65 volume%, the silica fume content is 5 to 25 volume%, and the inorganic powder content is 15 to 35 volume%, relative to 100 volume% of the total of the cement, the silica fume, and the inorganic powder.SELECTED DRAWING: None
【課題】本発明は、前記加熱時間を短縮でき、また圧縮強度と曲げ強度が高いセメント組成物と、該セメント組成物を用いたセメント質硬化体の製造方法を提供する。【解決手段】本発明は、セメント、ＢＥＴ比表面積が１５〜２５ｍ２／ｇのシリカフューム、５０％累積粒径が０．８〜５μｍの無機粉末、石灰系膨張材、最大粒径が１．２ｍｍ以下の骨材Ａ、直径が０．０１〜１．０ｍｍで長さが２〜３０ｍｍの金属繊維、高性能減水剤、消泡剤、および水を含むセメント組成物であって、セメント、シリカフューム、および無機粉末の合計を１００体積％として、セメントの含有率が５５〜６５体積％、シリカフュームの含有率が５〜２５体積％、および無機粉末の含有率が１５〜３５体積％であるセメント組成物等である。【選択図】なし
CEMENT COMPOSITION, AND METHOD OF PRODUCING CEMENT HARDENED BODY
To provide a cement composition that can be hardened in a shortened heating time and can produce a hardened body of high compression strength and flexural strength, and a method of producing a cement hardened body using the cement composition.SOLUTION: There is provided a cement composition according to the present invention comprising cement, silica fume of a BET surface area of 15 to 25 m/g, inorganic powder of 50% cumulative particle diameter of 0.8 to 5 μm, a lime-based expansion material, aggregate A of a maximum particle diameter of not larger than 1.2 mm, a metal fiber of a diameter of 0.01 to 1.0 mm and of a length of 2 to 30 mm, a high performance water reducing agent, a defoaming agent, and water, in which cement composition, the cement content is 55 to 65 volume%, the silica fume content is 5 to 25 volume%, and the inorganic powder content is 15 to 35 volume%, relative to 100 volume% of the total of the cement, the silica fume, and the inorganic powder.SELECTED DRAWING: None
【課題】本発明は、前記加熱時間を短縮でき、また圧縮強度と曲げ強度が高いセメント組成物と、該セメント組成物を用いたセメント質硬化体の製造方法を提供する。【解決手段】本発明は、セメント、ＢＥＴ比表面積が１５〜２５ｍ２／ｇのシリカフューム、５０％累積粒径が０．８〜５μｍの無機粉末、石灰系膨張材、最大粒径が１．２ｍｍ以下の骨材Ａ、直径が０．０１〜１．０ｍｍで長さが２〜３０ｍｍの金属繊維、高性能減水剤、消泡剤、および水を含むセメント組成物であって、セメント、シリカフューム、および無機粉末の合計を１００体積％として、セメントの含有率が５５〜６５体積％、シリカフュームの含有率が５〜２５体積％、および無機粉末の含有率が１５〜３５体積％であるセメント組成物等である。【選択図】なし
CEMENT COMPOSITION, AND METHOD OF PRODUCING CEMENT HARDENED BODY
セメント組成物、およびセメント質硬化体の製造方法
MORI KANAKO (Autor:in) / KONO KATSUYA (Autor:in) / TADA KATSUHIKO (Autor:in)
02.04.2020
Patent
Elektronische Ressource
Japanisch
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