Page 85 - Handbook of Thermal Analysis of Construction Materials

References 67

than ASTM Type I or Type V cement. Thermal drying after high
temperature curing intensifies the deterioration. In the secondary ettringite
formation, calcium sulfate formed from the decomposition of AFt or AFm
phase, as a consequence of severe drying, may dissolve upon rewetting and
migrate into cracks to react with the local Al-bearing materials to cause
expansion.

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