Why should a plastic film be affixed after the concrete has been poured?
Direct point1, if the appearance of concrete can not hide the ugly2, water charges are too expensive, after cover, you can reduce or no watering seal supervision mouth
According to the actual situation at that time, if the temperature difference is greater than 25 degrees, should strengthen the insulation materials, such as covering rock wool, etc., in order to prevent concrete produce too large temperature difference, stress and cracks
According to thermodynamic calculation, and the concrete surface temperature difference is not greater than 25 degrees, concrete pouring time after surface covered with a layer of plastic film insulation, timely prevent the conservation of water caused by excessive temperature difference between inside and outside the concrete temperature crack.
