Strength and w/c ratio relationship of cement based materials through pore features

In this paper, the relationship between compressive strength and w/c ratio of cement based materials is revisited through the pore features such as mean distribution radius (r0.5) and permeable porosity (P). At first, the pore features for different cement based components namely OPC paste, OPC sand mortar, cement-fly ash paste and mortar are estimated as a function of mix factors (i.e. w/c ratio and curing ages) by using the readily available relationships. The relationships between compressive strength and pore features for the above mentioned cement based components are also established. Finally the estimated compressive strength through the pore features versus w/c ratio curves are plotted which resembles the nature of Abrams established relationship between strength and water cement ratio.