At present, China's gypsum board has three types: gypsum board, fiber gypsum board and hollow gypsum board. 1Paper gypsum board is a lightweight thin plate made of gypsum as the core material and double-sided coated paper; 2 fiber gypsum board is made of gypsum as cementing material, using various organic or inorganic fibers (such as paper fiber, grass fiber) , glass fiber, etc.) as a reinforcing material made of lightweight sheet, 8 to 12 mm thick, weighing 7 to 9 kg / m 2; 3 hollow gypsum strip, also used gypsum as a cementing material, blending each A hollow partition wall made of lightweight materials or reinforcing fibers (such as expanded vermiculite, expanded perlite, glass fiber, etc.), with a thickness of 60-100 mm and a wall weight of 40-60 kg/m2. Paper and fiber gypsum sheets need to be made of steel, wood and gypsum keel as the skeleton. Hollow gypsum strips have a certain rigidity and can form a partition wall without a skeleton. Gypsum board is easy to cut, but it is also easy to damage, so special tools are needed during transportation and installation. During construction and installation, in order to ensure that the joints are not cracked, attention should be paid to the position of the joints. The joints must be properly treated with special cement materials.
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