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afm phase cement

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afm phase cement

Feb 01, 2007· The AFm phase of Portland cements refers to afamily of hydrated calcium aluminates based on the hydrocalumite-like structure of 4CaO·Al 2 O 3 ·13–19 H 2O. However OH − may be replaced by SO 4 2− and CO 3 2−. Except for limited replacement (50 mol%, maximum) of sulfate by hydroxide, these compositions do not form solid solutions and, from the mineralogical standpoint, …

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