A lightweight partition wall made of gypsum sheet or hollow gypsum strip can be used to separate the indoor space. It has the characteristics of simple structure, easy processing and installation. At the end of the 19th century, countries began to use gypsum board as the inner partition wall. It is a lightweight building material with large output and wide application in the world. This partition wall usually adopts steel-wood keel as the skeleton, and according to the use requirements, it can be combined with other materials (such as mineral wool board, waterproof coating and decorative surface material) to form a partition wall with sound insulation, waterproof or high-grade decoration requirements. In the 1970s, China began testing and production of gypsum plasterboard and hollow gypsum strips, and applied them in construction projects.
species
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.
Features
1 sound insulation. The double-layer sound insulation wall composed of two-layer separated sound insulation wall and hollow slab composed of thin plates has a sound insulation effect equivalent to a brick wall of 24 cm thick, and the sound insulation index can reach 40 to 50 decibels. 2 fire prevention. Gypsum board is a non-combustible material with certain fire performance, and some can be used as a fire protection layer for steel structures. 3 intensity. When the lateral load of the wall is 250 Pa, the lateral maximum deformation of the wall is not more than 1/240 of the wall height. 4 humidity adjustment. When the humidity in the air is greater than its own water content, the gypsum board can absorb the moisture in the air; otherwise, the gypsum board can release the moisture in the board, which can adjust the humidity in the indoor air.
Smd Led Lamp Beads,Led Chip Yellow Lamp Beads,Strip Led Bead,Orange Light Lamp Beads
Shenzhen Huangtai Photoelectric Co.,Ltd. , https://www.huangtailightstrip.com