What is high strength microporous calcium silicate board
Calcium silicate board process is the quartz sand, lime, cement and reinforced fiber mixed evenly, spread on the blanket forming filter layer formed, and then by high temperature autoclave with strength, its strength than the microporous silicon Calcium carbonate plate much higher, the density range of 0.6 or more, the domestic general is more than 1.
Microporous calcium silicate board is prepared by dynamic hydrothermal method and pressure molding. Dynamic hydrothermal method is used to make light slurry. The slurry is mixed with glass fiber to remove water. After molding, it can be dried. Part of the glass fiber and strong pressure, into a plate is completely physical process. This product does not do the top of the ceiling, why, its strength is by squeezing out, there is no chemical combination, in the wet state no strength, so can not be too thin, dry and cut into thin sheets easily broken and out Gray, I have seen are generally more than 3 cm thick block, used in a variety of fire insulation purposes, the intensity is relatively low, the national standard GB / T10699-1998 have introduced the density of 0.22 the following, the intensity is very low, no high strength Of the Japanese standard, there are 0.35-0.55 density range of the standard, the intensity of about 2MPa or so, as the density of 0.55 or more, can be done with ordinary calcium silicate board, the lower the cost, so generally do not see this Density of microporous calcium silicate products;
The problem is not clear, the calcium carbide board with calcium silicate board is not the same thing, it is completely different products, microporous calcium silicate board compared to the advantages of ordinary calcium silicate board is mainly density, manufacturing process And the use is completely different.
