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AFm phase

An AFm phase is an "alumina, ferric oxide, monosulfate" phase. AFm phases are important in the hydration of hydraulic cements.

They are crystalline hydrates with general, simplified formula 3CaO.(Al,Fe)2O3.CaSO4.nH2O They form inter alia when tricalcium aluminate reacts with dissolved calcium sulfate.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "AFm_phase". A list of authors is available in Wikipedia.
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