Crystal Growth of [Ca3Al(OH)6·12H2O]2·(SO4)3·2H2O (Ettringite) Studied Under Microgravity Conditions

On parabolic flights, the growth of ettringite, [Ca 3 Al(OH) 6 ·12H 2 O]2·(SO 4 ) 3 ·2H 2 O, a major reaction product of cement with water which forms instantaneously, was crystallized under microgravity conditions and studied. In the experiments, Ca(OH) 2 /Al 2 (SO 4 ) 3 solutions were combined and...

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