Dehydration and rehydration processes of cement paste exposed to high temperature environments

By C. Alonso, L. Fernández. 2004

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Activation of liberated concrete fines and their application in mortars (2014, background): “Alonso and Fernandes [11] concluded that ettringite became dehydrated abruptly after the temperature of 100 (cid:2) C.”
Investigation of the structure of heated Portland cement paste by using various techniques (2013, unknown): “(C–S–H) and calcium hydroxide (CH) dehydrate respectively at high temperature, which leads to irreversible change of the structure of cement paste [2].”
Cementitious characteristics of hydrated cement paste subjected to various dehydration temperatures (2009, methodology): “After high temperature exposure at 450 C and 750 C in turn, the spectrum of Q and Q gradually disappears and replaces by the new dimer and monomer of Q1N and Q 0 N [11].”