Curing of concrete

to prevent loss of moisture from concrete it is contineously cured by water for 7 days in general conditions. For hot weather or in dry conditions curing should not be less than 10 days. If mineral admixtures or PPC is being used then curing should be for 14 days. Concrete has enough water inside it to complete hydration but the surface is kept cured to prevent loss of water from inside. Method of curing may be by ponding in water, Sprinkling, Covering with moist hesian cloths, applying curing compound or by steam curing.

Curing may effect strength of structure. The inside temp and outside surface temp of concrete should not be differ than 15OC , otherwise cracks may occur in concrete.

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