Evaluation of phases in a hydrothermally treated CaO-SiO<inf>2</inf>-H<inf>2</inf>O system

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Journal Article
Journal of Thermal Analysis and Calorimetry, 2002, 70 (3), pp. 995 - 1003
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The evolution of hydration products with reaction time in a hydrothermally cured CaO-SiO2-H2O system, when using quartz of different fineness, was investigated by means of thermal, X-ray diffraction and wet chemical techniques. A combination of second derivative differential thermal-, first derivative thermogravimetric- and the equivalent differential thermal- and thermogravimetric curves provided more critical information about the nature of phases formed than X-ray diffraction alone. Phenomena including overlapping dehydration reactions and interactions of phases during the thermal experiment are discussed and illustrated by examples.
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