| FORMATION MECHANISM ON PHASE 5 AND PHASE 3 |
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| 作者姓名： | 张振禹 戴长禄 张铨昌 郭伯芝 刘蔚玲 |
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| 作者单位： | Institute of Geology，Academia Sinica，Beijing 100029，PRC，Institute of Geology，Academia Sinica，Beijing 100029，PRC，Institute of Geology，Academia Sinica，Beijing 100029，PRC，Institute of Geology，Academia Sinica，Beijing 100029，PRC，Institute of Geology，Academia Sinica，Beijing 100029，PRC |
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| 摘 要： | From the viewpoint of crystallography and thermodynamics the formation and phase-transformation reaction of phase 5Mg,(OH)5Cl·4H2O] and phase 3Mg2(OH)3Cl·4H2O] as a major resultant for the hardening reaction of magnesium oxychloride cement have been systematically investigated. It is recognized that the formation of phase 5 and phase 3 is mainly controlled by the molar ratio of MgO, MgCl2, and H2O in the initial reaction mixture. Phase 5 and phase 3 are formed by the reaction between MgO or Mg2+ dissolved out from MgO and the aqueous solution of MgCl2. In the system of MgO-MgCl2-H2O both phase 5 and phase 3 are metastable phases, and under given conditions phase 5 may transform into phase 3 and the latter also into Mg(OH)2.
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FORMATION MECHANISM ON PHASE 5 AND PHASE 3 |
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| ZHANG ZHEN-YU DAI CHANG-LU ZHANG QUAN-CHANGGUO BO-ZHI LIU WEI-LING.FORMATION MECHANISM ON PHASE 5 AND PHASE 3[J].Science in China(Chemistry),1991(12). |
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| Authors: | ZHANG ZHEN-YU DAI CHANG-LU ZHANG QUAN-CHANGGUO BO-ZHI LIU WEI-LING |
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| Abstract: | |
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| Keywords: | magnesium oxychloride cement hardening reaction phase-transformation mechanism |
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