How should you prepare a concrete surface for curing on a hot day?

• A. Begin finishing in cooler parts of the day, apply curing promptly (curing compounds or misting), and minimize evaporation.
• B. Finish as late as possible and ignore curing.
• C. Use dry tamping.
• D. Use high heat.

Answer: (A)

On a hot day the key is to keep the surface moist long enough for proper hydration. Finishing during cooler parts of the day helps reduce the initial heat of the concrete, while applying curing promptly—using curing compounds or a controlled misting of water—and minimizing evaporation keeps the surface from drying out too quickly. This combination ensures the concrete retains enough moisture during the critical early curing period for strength and durability. Finishing late and ignoring curing lets the surface dry out, weakening the cure. Dry tamping isn’t a curing method and can dry the surface, and using high heat speeds evaporation, worsening drying and cracking risks.