Research on composite fireproof plate for smoke exhaust fireproof air duct
The manufacturing method of a new type of fire-proof board for fire-proof duct was studied.The forming formula and technology of composite fire-proof board for smoke exhaust duct were discussed under certain technological conditions.The results show that the fire rating of the developed composite fire-proof board is class A,which has the characteristics of thin,light,high strength,convenient construction,safety and environmental protection,waterproof and mildew proof,and good environmental weather resistance.The fire resistance limit of the designed and manufactured composite fire-proof board is greater than 1h.
refractory ductpassive fire protectionfire ratingfire resistance limit