Why should a plastic film be added to the new cement road?
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.
The maintenance of concrete, according to the thermal calculation, concrete internal and surface temperature is less 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.
The new cement road needs a layer of plastic film for better maintenance.
