A, during the period of concrete curing, should focus on strengthening the humidity and temperature control of concrete, as far as possible to reduce the exposure time of surface concrete, and timely to closely cover the exposed surface of concrete (tarpaulin, plastic sheeting, etc. Can be used for covering) to prevent evaporation of surface moisture. Before the initial setting of the exposed surface protective layer concrete, the covering should be rolled up and rubbed with a trowel at least twice to make it smooth, and then covered. At this point, attention should be paid to the fact that the covering should not directly contact the concrete surface before the final setting of the concrete.

Second, after concrete pouring, if the climate is hot and the air is dry, the water in the concrete evaporates too quickly, which leads to dehydration, so that the cement particles that have formed gel can not be fully hydrated, can not be transformed into stable crystals, and lack sufficient cohesive force, resulting in flaky or powdery peeling off the concrete surface. In addition, when concrete does not have enough strength, premature evaporation of water will also produce large shrinkage deformation and drying cracks. Therefore, the initial curing after concrete pouring is very important. Concrete should be cured immediately after final setting, and hard concrete should be cured immediately after pouring.