- product description
New cement foundation requirements for plastic stadiums :
Solid leveling (flatness requirements: 3m ruler error is not greater than 3mm), drainage slope (generally no greater than 40/00 horizontally, no greater than 20/00 longitudinally, water leakage must be guaranteed), the strength reaches the strength of building concrete standard C20, pouring After the system is made, it should retain water for no less than 7 days, and the overall curing time should be no less than 28 days (to ensure the curing time of the cement, so that the white powder generated by the cement during the curing process will precipitate out of the base surface). After the new cement foundation is poured, the reasonable temperature expansion joints are cut. The principle is to cut a block of no more than 6x10m. If the temperature joints are cut between the plates cast in separate plates, the cutting temperature joints must be 4 ~ 5mm wide and the depth is 1 / 2 to 2/3, (ensure that the thermal expansion and contraction of the foundation can be concentrated in the temperature gap and will not cause cracks in other parts of the foundation).