Tag Archive for Tag: Internal sulfate attac

Tag: Internal sulfate attac Background Internal sulfate attack and delayed ettringite formation

During the hydration of Portland cement at temperatures around ambient, ettringite is formed at early ages, a consequence of the use of gypsum as a set regulator (Bensted, 2002a). Since the cement paste is still plastic, it is able to accommodate the volume changes associated with the conversion of precursor phases to ettringite and significant expansion is not observed unless

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