The United States "9 - 11" incident, skyscrapers suddenly toppled, standing strong steel structure beam column actually burned into a silk like, from then on, the safety of fire and steel structure building is sensitive to contact together. How Hangxiao steel structure residential fire performance? This is a problem that the society pays close attention to.
"For the steel resistant corrosion difference, heat-resistant refractory characteristics, to be protected, we use the air tightness of the Jharkhand CCA board package reinforced steel corrosion resistance, fire resistance, decoration and steel corrosion, fire unified consideration." Li Wenbin described the fire protection technology for us.
Specific approach is: in the cavity between the CCA board and steel member pump into the fireproof filling slurry (EPS concrete, thick coated fire-proof coating), filling slurry fireproof heat insulation effect to CCA board and fire prevention to improve the steel parts of the fire resistance limit of a composite type fire protection method. Has the following characteristics: good fireproof performance, steel member is completely consolidation in refractory material, low cost, the EPS concrete filling slurry and existing coating method and coating method compared, significant cost savings; good decoration, surface smooth; good air tightness, to steel corrosion.
And Hangxiao the high-frequency welded rectangular steel pipe concrete column frame - concrete tube structure, is the concrete is poured into the steel tube to form a steel pipe concrete. When a fire occurs in a concrete absorbs heat, in which the steel tube structure compared with the pure steel structure has better fire proof performance, which can reduce the cost of fire treatment.