Effects of Improper Curing on Concrete Durability

This research investigates the effect of improper curing on concrete durability, considering the effects on carbonation and sorptivity. Experiments were performed on 100mm concrete cubes cured for 28days under ideal and ambient conditions. The depth of carbonation was determined after exposing samples to 100% CO₂ at 20°C and 65% RH. Sorptivity testing was performed on samples dried in an oven at 400°C to constant weight. The results show that improper curing increases sorptivity and susceptibility to carbonation as addition of PFA reduces sorptivity and the depth of carbonation.