Infrastructure Development Code

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  1. Strict attention shall be paid to adequate curing, which is an important factor in attaining the required strength for the concrete.
  2. Immediately after placement, concrete shall be protected from premature drying, excessively high or low temperatures and mechanical damage and shall be maintained with minimal moisture loss for the necessary curing period and hardening of the concrete. In hot dry weather this will involve the use of sprinklers.
  3. All concrete surfaces not in contact with formwork shall be cured by the application of a curing compound conforming to ASTM C309 "Specification for liquid membrane - forming compounds for curing concrete".
  4. In cold or wet weather, concrete shall be protected from the elements during the curing period by covering with sheets of PVC or alternative approved material.

Definitions in this section

Approved material