①, the concrete should be poured as soon as possible after the insulation and moisturizing maintenance, concrete lightening, should be maintained immediately, in the concrete surface cover plastic

material film,

Strengthening of insulation and moisturizing maintenance of concrete after pouring,

Conditions can be increased in the place of the wet anti-cloth above the watering of the strengthening of the insulation and moisturizing

conservation. Thermal insulation and moisturizing maintenance is a good way to prevent dry concrete pavement sand, cracks, maintenance time should not be less than 7 days.

②, when the concrete surface has considerable hardness, generally with a finger light pressure without traces, can also be covered with wet straw mats or wet sacks, sprinkler maintenance should pay attention to the water can not be poured directly on the surface of the concrete, when encountered in heavy rain or high winds, to be covered in a timely manner to moisten the straw mats. Every day with a person diligently sprinkler maintenance, keep the grass mat or sack wet. Add water-reducing agent concrete strength 5 days can reach more than 80%, this time you can remove the straw mat, plastic film or wet sacks, after the release of traffic, still need to sprinkle water maintenance 2 ~ 3 days.