Fiber cement pressure plate and calcium silicate plate appearance and composition similar can not be identified, how to distinguish it?

With the development of science and technology, the extensive use of building materials, calcium silicate board and fiber cement board are common building decoration materials on the market, appearance and composition are similar, many people can not recognize. Calcium silicate board is formed by chemical reaction under high temperature after pulping of siliceous and calcareous fiber material. Fiber cement board is cement, fiber and other raw materials pulping molding after thousands of tons of press from. In fact, two completely different products, in the national industry standard number also belong to different product categories: fiber cement pressure plate number is JC/T412, calcium silicate plate number is JC/T564. When the interior decorates, general exterior wall chooses fiber cement board, interior wall decorates with calcium silicate board, calcium silicate board green material does not have harmful fiber and dust to fly, also do not have any harmful radiate, because this can be used extensively in building interior wall adornment.

The common ground of fiber cement pressure plate and calcium silicate plate

1. The raw materials of both are similar, including silica powder, calcium and fiber.

2, both through the pulping, copying (or flow pulp) and molding process.

3. Their appearance shape and length and width specifications are basically the same.

4. There are many overlapping areas in the scope of use, such as inner wall and insulation board.

The difference between fiber cement pressure plate and calcium silicate plate

1, calcium silicate board is composed of siliceous materials (mainly composition is SiO2, such as quartz powder, fly ash, diatomite, etc.), calcium material (ingredient is CaO, such as lime, calcium carbide, cement, etc.) mud, enhance fiber, additives according to certain proportion coordination, the copy or moulding, autoclaved curing processes such as made of a new type of inorganic building materials.

2, fiber cement board refers to the cement as the basic material and adhesive, with mineral fiber cement and other fibers as reinforcing materials, through pulping, molding, curing and other processes and made of the board. According to the different fiber added into the asbestos fiber cement board and asbestos-free fiber cement board, according to the different molding pressure into fiber cement no pressure board and fiber cement pressure board.

3. The density of fiber cement pressure plate is higher than that of calcium silicate plate. The density of fiber cement pressure plate is about 1.8g/cm3, and that of calcium silicate plate is about 1.2g/cm3.

4, the thickness of the fiber cement pressure plate can do 2.5-100mm, calcium silicate plate can not do under 4mm ultra-thin plate and 30mm above ultra-thick plate, general calcium silicate plate manufacturers can only do 6-12mm thickness.

5, the normal production of fiber cement pressure plate color for cement color, calcium silicate plate color for white or gray black.

6, fiber cement pressure plate due to high density, good toughness, tensile and impact resistance, etc., can be used for external wall veneer; Calcium silicate plates cannot be used as exterior siding.

How to distinguish the fiber cement pressure plate and calcium silicate plate

1. Calculated density: the density of calcium silicate plate is far lower than that of fiber cement pressure plate, and the approximate density can be calculated by the weight of the plate.

2, look at the color: although there are manufacturers in order to pretend to be fiber cement pressure plate and deliberately add carbon black board made of dark, but the color is generally deeper or black; The color of fiber cement pressure plate is natural cement color, the color is natural simple but elegant, it is gray black extensive white; Fiber cement pressure plate flatness is generally better than calcium silicate plate, give a person with smooth brightness feeling, calcium silicate plate flatness is poor, give a person a kind of acerbity dark feeling.

3, ask the manufacturer whether there is ultra-thin plate and ultra-thick plate, if not or can not do, that he is selling calcium silicate plate or ordinary calcium silicate plate.

4, if you go to the factory, you can visit the workshop, if there is autoclave fu (commonly known as bullet) and no press, it is certainly calcium silicate plate manufacturers; If there is no autoclave and no press, is the ordinary calcium silicate plate manufacturers. Huacheng xing building materials calcium silicate plate series products, using the domestic more advanced production technology, precision preparation and special technology processing, set safety, reliability, high value and excellent characteristics in one, has been widely used in various types of buildings. Calcium silicate board with high strength, large surface, light, fire prevention, moisture proof, sound insulation, heat insulation, energy saving and other excellent performance, is a new type of building decoration materials.