How to deal with the cracks in cement foam board
Hydrogen peroxide concentration on the production of insulation board have a certain impact. When the concentration of hydrogen peroxide is too high, will make the reaction more intense, resulting in collapse, if the mixing time is not sufficient, into the mold when the slurry is too thick, are easy to crack.
The quality of fly ash and the cracking of sheet metal also have a very important relationship. Powder burning ash is burned the remaining waste of coal, which has a lot of chemical composition, some ingredients do not need to do insulation board, and will react with the existing material, so that the foam cement insulation board Production to adversely affect the solution to this problem is to try a number of manufacturers of fly ash, more raw out of the quality of the plate.
Cement is the main factor affecting the cracking of foamed cement board. The higher the cement label, the higher the strength of the product produced, but also the easier it is to crack. This is because the cement hydration reaction, the resulting internal temperature of the cement and the external temperature difference between the external environment, so if you want to maintain the strength of foam cement board unchanged, then the cause of the cracking, to rely on the late meticulous Conservation to solve.
