Effect of calcium chloride on the volume contraction,non-evaporable water content and bound chloride content of hydrated portland cement and blast-furnace slag

The change in volume during hydration, Δv, and the water retained at 105°C at ultimate hydration, w_n^o, have been measured for cement-calcium chloride-water systems in which the cements consisted of portland cement, blastfurnace slag and mixtures of portland cement and blastfurnace slag in equal parts by mass.The results showed that the quantity of chloride bound in the solid phases increased with the initial concentration of chloride in the aqueous phase but the parameters Δv and w_n^o for a particular system were independent of the initial chloride concentration in the aqueous phase.