Age-dependent dynamics of water in hydrated cement paste - art. no. 020201

Self-dynamics of water molecules has been studied in hydrated tricalcium si licate as functions of temperature, aging, and in the presence of an additi ve. A dynamical model taking into account the existence of "immobile water" and "glassy water" has been used to analyze quasielastic neutron spectrome ter spectra. We deduced the fraction of the immobile water (p), the stretch exponent (beta), and the average relaxation time ((r) over bar) of the gla ssy water. A quantitative picture for an aspect of the kinetics of the curi ng process and the structural relaxation parameters of the glassy water hav e been established.