The key to achieving a strong, durable concrete rests in the careful proportioning and mixing of the ingredients.
A properly proportioned concrete mixture will possess the desired workability for the fresh concrete and the required durability and strength for the hardened concrete.
Curing is one of the most important steps in concrete construction, because proper curing greatly increases concrete strength and durability.
During the curing period (from five to seven days after placement for conventional concrete) the concrete surface needs to be kept moist to permit the hydration process to continue. New concrete should either be kept continuously wet with soaking hoses, sprinklers or by covering with wet burlap or filter fabric, or concrete can be coated with commercially available curing compounds, which maintain moisture in the concrete while it cures.