Calcium silicate board, as a new type of green and environmentally friendly building material, not only has the functions of traditional gypsum board, but also has the advantages of superior fire resistance, moisture resistance, and long service life. It is widely used in the ceiling and partition walls of industrial and commercial engineering buildings, as well as in home decoration, furniture lining, advertising board lining, warehouse shed board, network floor, tunnel and other indoor engineering wall panels.
Introduction
Calcium silicate board is a board made of loose short fibers such as inorganic mineral fibers or cellulose fibers as reinforcing materials, with silicon calcium materials as the main bonding material. It is processed by pulping, forming, and accelerating the curing reaction in high temperature and high pressure saturated steam to form calcium silicate cementitious material. It is a new type of building and industrial board with excellent performance. Its products are fireproof, moisture-proof, soundproof, insect proof, and have good durability. It is an ideal decorative board for ceilings and partitions.
classification
Calcium silicate board is a new type of inorganic building material made by mixing siliceous materials (mainly composed of SiO2, such as quartz powder, fly ash, diatomaceous earth, etc.), calcareous materials (mainly composed of CaO, such as lime, calcium carbide mud, cement, etc.), reinforced fiber materials, additives, etc. in a certain proportion, and through processes such as copying, molding, and steam curing. Due to its high strength, light weight, good processability, and non flammability, it is widely used in ship compartments, ceilings, non load bearing walls of buildings, and other places with fire protection requirements. Calcium silicate board is divided into insulation calcium silicate board and decoration calcium silicate board.
Calcium silicate board for insulation
Calcium silicate board for insulation is called microporous calcium silicate, which is a new type of white and hard insulation material. It has the characteristics of light bulk density, high strength, low thermal conductivity, high temperature resistance, corrosion resistance, cutting ability, sawing ability, etc. Widely used in the fields of power, metallurgy, petrochemicals, construction, ships, etc. for insulation and fire insulation of equipment pipelines, walls and roofs. The thickness is usually above 30mm, and the density is between 200-1000kg/m3.
Calcium silicate board for decoration
Calcium silicate board for decoration, invented by OCFG company in the United States, is a new type of building board known for its comprehensive performance. It has been widely used and developed in developed countries since the 1970s. Europe, America, Japan, Australia and Taiwan, China are the countries and regions where calcium silicate boards are most commonly used. China successfully developed calcium silicate boards in the early 1980s, entered the development stage in the mid-1980s, and were widely promoted and applied in the late 1990s. The thickness is 4-20mm, and the length and width are mainly 1220 * 2440mm. At the same time, there are decorative calcium silicate ceilings made of large-sized calcium silicate boards, which are widely used for ceilings due to their advantages such as fire resistance and resistance to sinking.
Product performance
Fire resistance performance
Calcium silicate board is a non combustible A1 grade material. In the event of a fire, the board will not burn and will not produce toxic smoke.
waterproof performance
Calcium silicate board has good waterproof performance and can maintain stable performance in high humidity places such as bathrooms and toilets, without expansion or deformation.
high strength
Calcium silicate board has high strength, and the strength of 6mm thick board is much higher than that of 9.5mm thick ordinary paper faced gypsum board. Calcium silicate board walls are solid and reliable, not easily damaged or broken.
Stable size
Calcium silicate board adopts advanced formula and is produced under strict quality control. The wet swelling and dry shrinkage rate of the board are controlled within the most ideal range.
Thermal insulation and sound insulation
Calcium silicate board has good thermal insulation performance. The thermal insulation performance of 10mm thick partition wall is significantly better than that of ordinary brick wall, and it also has good sound insulation effect.
Long service life
Calcium silicate board has stable performance, acid and alkali resistance, is not easily corroded, and will not be damaged by moisture or insects, ensuring a long service life.
production process
raw materials
(1) Siliceous materials: quartz powder, diatomaceous earth, fly ash, etc.
(2) Calcium materials: hydrated lime powder, cement, calcium carbide mud, etc.
(3) Reinforced fibers: wood paper fibers, wollastonite, cotton fibers, etc.
(4) Main ingredients and formula: silicon powder+calcium powder+natural wood pulp fiber.
production method
There are molding method, copying method, and slurry method. The common method is generally the extrusion method, in which the raw materials are fully stirred and matured according to the design ratio, and then extruded and formed by a roller machine at high temperature. The length dimension is 2440mm, the width is 1220mm, and the commonly used thickness is 4-30mm.
Scope of application
Usage location
Commercial buildings: Business buildings, entertainment venues, shopping malls, hotels, industrial buildings; Factories, warehouses, and residential buildings; New residential buildings and renovated public places; Hospitals, theaters, and train stations.
main purpose
It refers to industrial panels such as walls, ceilings, floors, furniture, road sound insulation, sound-absorbing barriers, ship compartments, and air ducts, as well as panels for sound-absorbing walls, sound-absorbing ceilings, poured walls, and composite wall panels.
