Traditional Culture Encyclopedia - Weather forecast - How to prevent cracks in concrete structure in high temperature weather

How to prevent cracks in concrete structure in high temperature weather

Main preventive measures:

First, choose silicate or ordinary portland cement with small dry shrinkage and high early strength.

Second, strictly control the water-cement ratio, add superplasticizer to increase the slump and workability of concrete, and reduce the amount of cement and water. Third, before pouring concrete, water evenly to drench the foundation and formwork.

Fourth, before the final set, cover the concrete surface with plastic film, wet straw mat and hemp chips in time to keep it moist, or spray curing agent on the concrete surface for curing.

Fifth, in hot and windy weather, we should set up sunshade and windproof facilities and maintain them in time.