GB requirements for b1 grade extruded plate oxygen index?
First, JGJ59-2011 construction safety inspection standards for building construction safety inspection is divided into three levels: excellent, qualified, unqualified
The difference between the two is: First, the extruded plate than the polystyrene board thermal conductivity is low In the selection of thickness than polystyrene board has a great advantage Second, the extruded plate than the polystyrene board compressive strength or high compressive strength, so the extruded board commonly used with the roof insulation and basement and floor insulation Third, the extruded board than polystyrene board is the lack of: density, compact structure, brittle, airtight, and the surface is smooth, without interface treatment, poor adhesion
It is developed in recent years, a new scaffolding system, mainly used in high-rise shear wall real estate
