A-level fireproof-soundproof-heat-preservation wall board

Abstract

The invention relates to the field of building materials and particularly relates to an A-level fireproof-soundproof-heat-preservation wall board. The A-level fireproof-soundproof-heat-preservation wall board comprises two light refractory heat-preservation layers and a supporting keel layer, wherein the supporting keel layer is positioned between the two light refractory heat-preservation layers and consists of two layers of foamed ceramic plates wrapped by metal plates and an inorganic heat-preservation cotton arranged between the foamed ceramic plates. The A-level fireproof-soundproof-heat-preservation wall board has the advantages that according to the structure, the supporting keel layer is adopted to completely wrap and protect the supporting keel layer with main functions, and by adoption of the mode of additionally arranging the light refractory heat-preservation layers outside the supporting keel layer to play roles in protecting the metal plates in the wall board, improving the performance of the wall board and decorating the wall board, the A-level fireproof-soundproof-heat-preservation wall board has the characteristics of relatively stable and firm structure, long service life, and good fireproof, soundproof and heat-preservation effects.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a Class A fire-proof, sound-insulating and heat-insulating wallboard. Background technique [0002] Since 2005, the Ministry of Construction has vigorously promoted the thin plastering system project for external wall insulation. Organic thermoplastic polystyrene board (EPS) and extruded plastic board (XPS) are characterized by low price, convenient construction, light bulk density and good thermal insulation performance. , has been widely used in the decoration engineering of the external thermal insulation thin plastering system; but in several years of practical application, it has exposed the disadvantages of its thermoplastic thermal insulation material, which has a low ignition point and burns quickly and is not suitable for rescue; inorganic salt thermal insulation materials have Good fire performance, such as rock wool board, perlite board and cement-based foam insulatio...

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Problems solved by technology

[0003] The thermal insulation boards in the prior art use rock wool, glass wool, phenolic glass wool, etc. that meet the requirements of Class A fire resistance for building external thermal insulation materials as thermal insulation materials. Polyurethane material is used for wrapping. Due to the low hardness of gypsum material and rigid polyurethane foam, high brittleness and poor fire resistance, the wrapping layer is easily cracked and deformed, which makes the insulation material face the problems of water absorption, shape is not easy to fix, and extruded pulverization. The manufactured insulation board Poor thermal insulation performance and low service life; in addition, with the development of society, people pay more and more attention to building fire safety and sound insulation performance, and the requirements are getting higher and higher. It only plays the role of heat preservation, and cannot meet the construction requirements of public buildings such as cinemas, KTV entertainment venues, theaters, and conference centers; in order to meet the above-mentioned requirements, at present, the structure of keel gypsum board filled with rock wool is generally used in the interior walls of buildings. , but this kind of structure deforms greatly, the service life is not high, and the thermal insulation effect and sound insulation effect are not good

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