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The study is for the purpose of synthesis-ing the pure phases of magnesium oxychloridecement and investigating the basic hydrationphases and the patterns of phase changes.Theresults suggest that the artificial synthesisbased on the correct formulations can yieldthe basic hydration phases of magnesiumoxychloride,i.e.5.1.8 and 3.1.8.The patternsof change between the two phases are described.The hydration phases in magnesiumoxychloride cement prepared with MgCl_2 solu-tions of different concentrations are mainly5.1.8 and Mg(OH)_2.The relationship betweenthe ratio of the hydration phases and thestrength of the cement was calculated using asemiquantitative method.Based on thisrelationship,the cement paste with theoptimum strength can be obtained by choosingthe proper ratio of the hydration phases.
The study is for the purpose of synthesis-ing the pure phases of magnesium oxychloridecement and investigating the basic hydrationphases and the patterns of phase changes. These results suggest that the artificial synthesis based on the correct formulations can yield the basic hydration phases of magnesiumoxychloride, ie 5.1.8 and 3.1.8.The patterns of change between the two phases are described. The hydration phases in magnesiumoxychloride cement prepared with MgCl 2 solu-tions of different concentrations are mainly 5.1.8 and Mg (OH) 2. The relationship betweenthe ratio of the hydration phases and thestrength of the cement was calculated using asemiquantitative method.Based on thislationlationship, the cement paste with theoptimum strength can be obtained by choosingthe proper ratio of the hydration phases.