Cement products, Wang Wensheng means refers to the use of cement as a raw material, adding certain materials such as lime coal slag, etc., through molding and other procedures to make products of various shapes, is our most common cement products. However, the needs of Xiaobian remind you that you need to protect and protect the cement products within 12 hours after pouring.
As for the protection time of cement products, we need to decide on the specific situation. The concrete mixed with portland cement, general portland cement or slag portland cement shall not be less than 7 days; the concrete mixed with retardation admixture or impermeability requirements shall not be less than 14 days; The number of times insisted that the concrete was wet, and the water used for protection should be the same as that used for mixing.
Special Note: If the average temperature of the day is lower than 5 degrees Celsius, do not sprinkle water. Cover the protected concrete with plastic cloth, and all exposed surfaces should be covered tightly, and there should be condensed water in the plastic cloth.