Water curing involves which practice?

Water curing involves which practice?

• A. Keeping the surface wet by ponding, spraying, or covering with wet burlap
• B. Applying a glossy sealant
• C. Covering with plastic sheets only
• D. Spraying oil on the surface

Answer: (A)

Water curing means keeping the concrete surface moist so the hydration process can continue. This is done by ponding water on the surface, spraying water, or covering the surface with something damp like wet burlap. Maintaining moisture in this way helps the concrete gain strength and reduces drying shrinkage and cracking. The other choices don’t provide the ongoing moisture essential to water curing: a glossy sealant creates a moisture-blocking surface rather than adding moisture; plastic sheets alone mainly trap moisture but don’t actively wet the surface; and spraying oil would form a barrier that hinders proper hydration.

Water curing means keeping the concrete surface moist so the hydration process can continue. This is done by ponding water on the surface, spraying water, or covering the surface with something damp like wet burlap. Maintaining moisture in this way helps the concrete gain strength and reduces drying shrinkage and cracking. The other choices don’t provide the ongoing moisture essential to water curing: a glossy sealant creates a moisture-blocking surface rather than adding moisture; plastic sheets alone mainly trap moisture but don’t actively wet the surface; and spraying oil would form a barrier that hinders proper hydration.