Influence of water-to-cement ratio and curing period on pore structure of cement mortar

► Porosity and hydration degree of mortar increased with increasing w/c. ► Total porosity of mortar decreased with increasing curing period. ► Existing models for pore size distribution of mortar were reviewed. ► A single lognormal distribution may not be adequate for pore size distribution. ► Compound lognormal distribution could be used to model pore size distribution.