The effect of w/c ratio and curing temperature on the permeability of hardened cement paste

Abstract The importance of concrete permeability is discussed relative to its effect on durability. Experimental studies were made of the effect of water/cement ratio and curing temperature on the porosity, pore size distribution and permeability of cement pastes. Although total porosities of samples cured at 60°C are smaller than in those cured at 27°C, the pore volume larger than 750A radius is greater in the 60°C samples and is related to higher permeabilities also in the latter.