ABSTRACT

ACI 308R-01 1 describes curing as a process during which hydraulic-cement concrete develops hardened properties through the hydration of the cement in the presence of water and heat. Curing allows hydration to occur so that the intended mechanical and durability properties of the concrete may develop. Hardened cement paste reacts as a porous matrix that bonds aggregates. As hydration continues, the strength of the inter-particle bonding increases, and the inter-particle porosity decreases. The rate and extent of the hydration depend on the availability of water.