What is A grade fireproof material?
Combustion performance for the A-class insulation materials are: rock (mine) cotton, foam glass, inorganic insulation mortar and so on. Fire insulation with insulation materials can be used rock (mine) cotton, foam glass, inorganic insulation mortar and other combustion performance grade A grade material. According to the relevant provisions of the relevant state: 1, residential buildings: building height greater than 100 meters above the insulation material combustion performance should be Class A. 2, other civil buildings: building height greater than 50 meters need to set A-class fireproof material. 3, other civil buildings: 24 ≤ height & lt; 50 can be used A1, can also use fire isolation belt
Inorganic insulation materials are basically able to achieve, such as glass wool, rock wool, foam glass and so on. Organic foam inside the phenolic foam material, more special. Phenolic foam is not only good insulation properties, and can be combined with steel and other materials, to achieve fire A-class combustion performance for the A-level of the muscle-chop resistance of the Gui-Guai-helium slurry temperature materials are: rock (mine) cotton, Inorganic insulation mortar and so on. Combustion performance for the B1-level insulation materials are: phenolic, powder polystyrene particles. Fire insulation with insulation materials can be used rock (mine) cotton, foam glass, inorganic insulation mortar and other combustion performance grade A grade material.
A grade fireproof material refers to non-combustible material, is a kind of fireproof material. In China, building materials are divided into A, B1, B2, B3 four kinds of materials, respectively, said nonflammable, flame retardant, flammable and flammable, commonly used building fireproof material is A, B1, B2 three.
B1 grade, flame retardant; B2 grade, flammability; B3 grade, flammability. B1 grade, flame retardant; B2 grade, flammability; B3 grade, flammability. A grade fireproof material is burned material.
