The effects of CaCl 2 and sucrose on the hydration of monoclinic and triclinic tricalcium silicate were studied using quasielastic neutron scattering and calorimetry. Aside from acceleration and retardation, other effects on the reaction were revealed including changes to the rate constant and the type and amount of hydration product. These effects were measured in terms of specific kinetic parameters for the first time. The phenomenon of “delayed acceleration” caused by sucrose is attributed to the solubilization of the silicate species.
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Peterson et al. (2006) studied this question.
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