How to make a cement board
In advance with a board made of a box, four corners and then pull the cable to prevent the shift, put the plastic cloth can be. And then use the No. 8 wire on both ends of the hook, put into the box, with fine wire tied to make it a net (outside the sale of ready). A small amount of some cement into the sand, the proportion of this cement to be larger 1: 3. Wire to the prefabricated plate thickness of half, began to put a lot of cement sand, smoothing at the same time, with the hammer hitting the surrounding wood. OK. At least 10 days to health, summer 5-7 days can be. Do not water in winter.
Simply said: quick-drying cement is mainly used for emergency repair, underground, tunnel, anchor spray support works, plugging water and road repair and other projects. Before the construction mix, mix immediately after pouring, if the transport from the mixing site to the construction site can not be controlled within ten minutes, the cement coagulation time can be adjusted according to the construction needs of retarder.
Cement board is a cement as the main raw material processing and production of a building plate, is a between the gypsum board and stone, free cutting, drilling, carving of the building products, with its superior to gypsum board, wood fire , Waterproof, anti-corrosion, pest control, sound insulation and far lower than the price of stone and become the construction industry widely used in building materials. The cement board is prefabricated and also cast.
