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Application of gypsum board

Application of gypsum board
Building gypsum hardening body strong hygroscopicity, gypsum board is suitable for absorption in what parts of water will weaken the binding force between the strength of gypsum crystal, significantly reduced; if the long-term water immersion, but by two water gypsum crystals gradually dissolved and destroyed. Gypsum products saturated after the cold, will destroy the water crystal pore expansion.
Gypsum products water resistance and freezing resistance is poor, in which parts should not be used for wet parts in order to improve the water resistance of gypsum board is suitable for, can be added to the amount of cement, slag and other hydraulic material, it can be added to organic waterproofing agent, pore state can improve the gypsum products or the hole wall with increasing water, building gypsum in mixing, in order to make the slurry has plasticity requirement of construction, need to add 60% to the dosage of gypsum with water, while the building gypsum hydration theory content is 18.6%, so the large number of water evaporation, the building gypsum products formed capillary pore in a lot of. Small coefficient of thermal conductivity, good sound absorption property, which belongs to the light, heat insulating material.