What is the fire resistance time of rock wool sandwich panel
With the large-scale utilization of rock wool sandwich panels, people have gained some understanding of its properties. Rock wool sandwich panel a big advantage is fire resistance, then how to know its fire resistance performance?What is the fire resistance time of rock wool sandwich panel？
Size of Sandwich Panel Rock Wool
The size of the rock wool sandwich panel will affect the board’s fire resistance time, when the outside of the building rock wool board parcel area is too large, even if the outside world to produce fire phenomena such as combustion, it is not easy to the inside of the building, to protect the safety and stability of the building interior. So the larger the size of the rock wool sandwich panel, the longer the fire-resistant limit of time, but most of the rock wool sandwich panel fire-resistant time, are not more than six hours.
Performance of Sandwich Panel Rock Wool
The performance of rock wool sandwich panel, and the plate itself, the production process, the use of raw materials, manufacturers. If the use of qualified materials and processes, then it can greatly improve the performance of the rock wool sandwich panel, so that the rock wool sandwich panel fire-resistant time to six hours. But if you buy a fake or shoddy products, then the performance of this panel will be a drop, and can not accurately estimate the fire-resistant time of the rock wool sandwich panel.
Flame temperature
Although the flame is a combustion phenomenon, but different sizes of the fire, the internal temperature is different. The different temperatures will affect the fire resistance limit of the rock wool sandwich panel itself, the use of this plate temperature can reach 700 degrees Celsius or so. When the temperature rises, the structure and performance of the rock wool sandwich panel will be affected, then its fire-resistant limit time will be greatly reduced.
According to the provisions of the “Code for Fire Protection Design of Buildings”, the double-sided single-layer color steel plate is filled with rock wool in the middle, the thickness of the component is 200mm, and its fire resistance limit is 2.00h. If different specifications of rock wool color steel plates are used, the fire resistance limit can reach 4 hours.