Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
RAPID HARDENING ADDITIVE FOR CEMENT AND METHOD FOR PRODUCING THE SAME
To provide a rapid hardening additive for cement, which exhibits sufficient strength not only at room temperature but also at high temperatures such as in summer, exhibits good rapid hardening performance, while sufficiently ensuring flowability and having excellent workability.SOLUTION: A quick-hardening additive for cement containing 70% or more by mass of a C12A7 mineral phase, 25% or less by mass of C2S, 5% or less by mass of C3A, 10% or less by mass of CA, and 20% or less by mass of C2AS. Preferably, C4AF is contained in an amount of 0.5% or less by mass, and more preferably, the total mass of CaO and MgO and the remaining mineral phase is 15% by mass.SELECTED DRAWING: None
【課題】常温のみならず夏季のような高温下で十分な強度を発現し、良好な急硬性能を示すとともに、所定の流動性を十分に確保して施工性に優れる、セメント用急硬性添加材及びその製造方法の提供。【解決手段】Ｃ１２Ａ７系鉱物相を７０質量％以上、Ｃ２Ｓを２５質量％以下、Ｃ３Ａを５質量％以下、ＣＡを１０質量％以下、Ｃ２ＡＳを２０質量％以下で含む、セメント用急硬性添加材。好ましくは、Ｃ４ＡＦを０．５質量％以下で含み、更に好ましくは、ＣａＯ及びＭｇＯ並びに、残部鉱物相の総質量が、１５質量％であることが望ましい。【選択図】なし
RAPID HARDENING ADDITIVE FOR CEMENT AND METHOD FOR PRODUCING THE SAME
To provide a rapid hardening additive for cement, which exhibits sufficient strength not only at room temperature but also at high temperatures such as in summer, exhibits good rapid hardening performance, while sufficiently ensuring flowability and having excellent workability.SOLUTION: A quick-hardening additive for cement containing 70% or more by mass of a C12A7 mineral phase, 25% or less by mass of C2S, 5% or less by mass of C3A, 10% or less by mass of CA, and 20% or less by mass of C2AS. Preferably, C4AF is contained in an amount of 0.5% or less by mass, and more preferably, the total mass of CaO and MgO and the remaining mineral phase is 15% by mass.SELECTED DRAWING: None
【課題】常温のみならず夏季のような高温下で十分な強度を発現し、良好な急硬性能を示すとともに、所定の流動性を十分に確保して施工性に優れる、セメント用急硬性添加材及びその製造方法の提供。【解決手段】Ｃ１２Ａ７系鉱物相を７０質量％以上、Ｃ２Ｓを２５質量％以下、Ｃ３Ａを５質量％以下、ＣＡを１０質量％以下、Ｃ２ＡＳを２０質量％以下で含む、セメント用急硬性添加材。好ましくは、Ｃ４ＡＦを０．５質量％以下で含み、更に好ましくは、ＣａＯ及びＭｇＯ並びに、残部鉱物相の総質量が、１５質量％であることが望ましい。【選択図】なし
RAPID HARDENING ADDITIVE FOR CEMENT AND METHOD FOR PRODUCING THE SAME
セメント用急硬性添加材及びその製造方法
KANO KAZUHIRO (Autor:in) / KIKO TOMOKO (Autor:in) / KAMIKOUCHI TAKASHI (Autor:in) / ITO KYOKO (Autor:in) / KIKUCHI SADATO (Autor:in) / HIRANO YUKI (Autor:in) / SHINSUGI MASASHI (Autor:in)
31.10.2019
Patent
Elektronische Ressource
Japanisch
IPC:
C04B
Kalk
,
LIME
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