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In the family decoration, gypsum board is the most common decoration material. Gypsum board is made of anhydrite as the main raw material, adding additives and fibers. It has the properties of light weight, heat insulation, sound absorption, non combustion and sawability. The price of gypsum board is lower than other decoration materials, but it has good decoration effect and sound absorption performance. What are the thickness and specifications of gypsum board? How to construct gypsum board?
Introduction of gypsum board
Gypsum board is a kind of material which is made of building gypsum as the main raw material. It is one of the new light board which focuses on the development at present. When used, light steel keel is usually used as ceiling and partition wall. The flat surface and seamless structure can form a simple and practical decorative effect.
Advantages of gypsum board: light weight, high strength, thin thickness, convenient processing, sound insulation, fireproof, non aging, anti moth
Gypsum board disadvantages: the gap is difficult to deal with, easy to crack, not sound insulation, not thermal insulation (asbestos can be added to solve), vulnerable walls
Gypsum board uses: residential, office buildings, shops, hotels and industrial plants and other internal walls, wall cladding, ceiling, sound-absorbing board, ground base plate and various decorative boards
Gypsum board specification
General gypsum board thickness (unit: mm): 2400 * 1200 * 12; 2400 * 1200 * 9.5; 2440 * 1220 * 12; 2400 * 1220 * 9.5; 3000 * 1200 * 12; 3000 * 1200 * 9.5; 1800 * 1200 * 9.5.
Types of gypsum board
This paper is a kind of light board which is made of paper as cover and gypsum slurry as sandwich. Light texture, high strength, fireproof, mothproof, easy to process. Ordinary paper faced gypsum board is used for interior wall, partition wall and ceiling. The water-resistant gypsum board with fireproof treatment can be used in the room with high humidity, such as kitchen and toilet.
02 decorative gypsum board
With building gypsum as the main raw material, mixed with a small amount of fiber materials, the board with various patterns and decorations is suitable for medium and high-grade decoration. It is light, fireproof, moisture-proof, easy to process and easy to install. In particular, the new type of resin imitation facing waterproof gypsum board can be used to decorate the wall, to make wall protection board and skirting board. It is an ideal material to replace natural stone and terrazzo.
03 gypsum hollow slab
Gypsum hollow strip board is a kind of hollow board, which is made of building gypsum as the main raw material, adding appropriate amount of light filler or fiber material. This kind of board does not need paper and binder, and does not need keel when installing. It is a kind of light board which develops rapidly. It is mainly used for interior wall and partition wall.
04 fiber gypsum board
Fiber gypsum board is made of building gypsum as the main raw material and adding appropriate amount of fiber reinforced materials. The bending strength of this board is higher than that of paper faced gypsum board. It can be used for interior wall and partition wall, and can also replace wood to make furniture.
Difference between gypsum board and calcium silicate board
Gypsum board: fireproof, sound insulation, heat insulation, light weight, high strength, small shrinkage, insect proof
Calcium silicate board / mineral wool board: fireproof, variety, good waterproof performance, long service life, insect proof, sound insulation
From the perspective of building materials, calcium silicate board and gypsum board are two different building thermal insulation materials. The raw material of gypsum board is gypsum, and the main material of calcium silicate board is high-grade cement. The two building thermal insulation materials are different in terms of materials.
From the performance point of view, where gypsum board can be used, calcium silicate board can be used instead of gypsum board, but gypsum board can not replace calcium silicate board. Calcium silicate board is often used in some places with high strength or high fire protection level, because its waterproof performance and fire resistance performance are better than gypsum board, and its service life is significantly longer than gypsum board.
Gypsum board purchase
Mark and inspection report: pay attention to purchase regular gypsum board when selecting. Regular gypsum board, on its packaging box, will be clearly printed with the name of the product, quality grade, production date, as well as moisture-proof, handle with care and product marks and other signs and fonts. It also depends on whether there is a national "building decoration materials radionuclide limit" standard test report.
Appearance quality: under the condition of bright light at 0.5m away, check whether the surface is flat and smooth without pores, stains, cracks, missing corners, uneven colors and incomplete cases. The two layers of kraft paper on the gypsum board should be firm. Whether the texture of side gypsum is dense and whether there is hollowing phenomenon. The more dense the gypsum board is, the more durable it is.
Tapping by hand: check the elasticity of the gypsum board. If it is knocked by hand, it will make a solid sound, indicating that the gypsum board is tight and durable. If it makes a very empty sound, it means that there is hollowing in the board and the quality is not good. Hand weight can also be used to measure the pros and cons of gypsum board.
Gypsum board size: the allowable deviation, flatness and right angle deviation of gypsum board size shall meet the qualified standards. If the deviation of decorative gypsum board is too large, the decorative surface joint will be irregular, and the whole surface will be uneven, which will have a great impact on the decoration effect.
Gypsum board price: gypsum board price calculation method is different, one is based on the number of pieces, the price is a price, the larger the gypsum board specification, the higher the price; more is to calculate the safety area, the unit is per square meter, the general gypsum board price is in forty or fifty yuan. If it is thickened gypsum board, the price will be more expensive.
Gypsum board brand: for those consumers who don't know about gypsum board, there will be a lot of problems in the process of purchasing, so try to choose products with high popularity, large scale, good reputation and in line with national standards to avoid decoration pollution and long radionuclide