A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
QUICK HARDENING ADDITIVE MATERIAL FOR CEMENT AND MANUFACTURING METHOD THEREFOR
PROBLEM TO BE SOLVED: To provide a quick hardening additive material for cement post-added to cement, excellent in hydration activity, exhibiting good quick hardening property as well as capable of sufficiently securing predetermined flowability even under low temperature and a manufacturing method therefor.SOLUTION: There is provided a quick hardening additive material for cement which is post-added to cement, contains C12A7-based mineral phase of 70 mass% or more, C3A of 5.0 mass% or less, Ti of 1.0 mass% or less in terms of TiO, Fe of 1.5 mass% or less in terms of FeOand has crystallite diameter of the C12A7-based mineral phase measured by an X ray diffraction of 150 to 500 nm and contents of SiO2, Al2O3 and CaO (mass%) satisfying CaO≤1.9×SiO2+0.9×Al2O3, preferably further contains F of 0.5 to 3.0 mass% with lattice constant of the C12A7-based mineral phase of 11.940 to 11.975Å.SELECTED DRAWING: None
【課題】低温においても、水和活性が優れて良好な急硬性能を示すと同時に所定の流動性を十分に確保することができる、セメントに後添加す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】セメントに後添加する添加材であって、Ｃ１２Ａ７系鉱物相を７０質量％以上、Ｃ３Ａを５．０質量％以下、ＴｉをＴｉＯ２換算で１．０質量％以下、ＦｅをＦｅ２Ｏ３換算で１．５質量％以下で含有し、Ｘ線回析で測定したＣ１２Ａ７系鉱物相の結晶子径が１５０〜５００ｎｍであって、ＳｉＯ２、Ａｌ２Ｏ３およびＣａＯ含有量（質量％）がＣａＯ≦１．９×ＳｉＯ２＋０．９×Ａｌ２Ｏ３を満たし、好ましくは、更にＦを０．５〜３．０質量％含有し、Ｃ１２Ａ７系鉱物相の格子定数が１１．９４０〜１１．９７５Åである、セメント用急硬性添加材。【選択図】なし
QUICK HARDENING ADDITIVE MATERIAL FOR CEMENT AND MANUFACTURING METHOD THEREFOR
PROBLEM TO BE SOLVED: To provide a quick hardening additive material for cement post-added to cement, excellent in hydration activity, exhibiting good quick hardening property as well as capable of sufficiently securing predetermined flowability even under low temperature and a manufacturing method therefor.SOLUTION: There is provided a quick hardening additive material for cement which is post-added to cement, contains C12A7-based mineral phase of 70 mass% or more, C3A of 5.0 mass% or less, Ti of 1.0 mass% or less in terms of TiO, Fe of 1.5 mass% or less in terms of FeOand has crystallite diameter of the C12A7-based mineral phase measured by an X ray diffraction of 150 to 500 nm and contents of SiO2, Al2O3 and CaO (mass%) satisfying CaO≤1.9×SiO2+0.9×Al2O3, preferably further contains F of 0.5 to 3.0 mass% with lattice constant of the C12A7-based mineral phase of 11.940 to 11.975Å.SELECTED DRAWING: None
【課題】低温においても、水和活性が優れて良好な急硬性能を示すと同時に所定の流動性を十分に確保することができる、セメントに後添加す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】セメントに後添加する添加材であって、Ｃ１２Ａ７系鉱物相を７０質量％以上、Ｃ３Ａを５．０質量％以下、ＴｉをＴｉＯ２換算で１．０質量％以下、ＦｅをＦｅ２Ｏ３換算で１．５質量％以下で含有し、Ｘ線回析で測定したＣ１２Ａ７系鉱物相の結晶子径が１５０〜５００ｎｍであって、ＳｉＯ２、Ａｌ２Ｏ３およびＣａＯ含有量（質量％）がＣａＯ≦１．９×ＳｉＯ２＋０．９×Ａｌ２Ｏ３を満たし、好ましくは、更にＦを０．５〜３．０質量％含有し、Ｃ１２Ａ７系鉱物相の格子定数が１１．９４０〜１１．９７５Åである、セメント用急硬性添加材。【選択図】なし
QUICK HARDENING ADDITIVE MATERIAL FOR CEMENT AND MANUFACTURING METHOD THEREFOR
セメント用急硬性添加材及びその製造方法
KANO KAZUHIRO (author) / KIKO TOMOKO (author) / KAMIKOUCHI TAKASHI (author) / ITO KYOKO (author) / KIKUCHI SADATO (author) / HIRANO YUKI (author)
2016-06-20
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
QUICK HARDENING ADDITIVE MATERIAL FOR CEMENT AND MANUFACTURING METHOD THEREFOR
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