Is the concrete flammable/combustible material or is a fire-proof material?
Post 1 of 6
is the concrete flammable/combustible material or is a fire-proof material?
17 Oct 2007 01:34
Post 2 of 6
Replying to [zongren]:
Keep a fire extinguisher by each exit
Keep a fire extinguisher by each exit
18 Oct 2007 00:17
Post 3 of 6
Replying to [zongren]:For all practical purposes, concrete is a fireproof building material.
18 Oct 2007 00:28
Post 4 of 6
Replying to [zongren]:
There is no such thing as fire proof. Almost anything will burn if it gets hot enough. Thats why they put aluminum in rocket fuel. Steel will burn. Not just melt but actually react with oxygen and burn to produce heat many times hotteer than wood alone. Concrete can burn too. Worse, if it gets hot enough concrete can explode. Though there are techniques to prevent and minimize this.
There is no such thing as fire proof. Almost anything will burn if it gets hot enough. Thats why they put aluminum in rocket fuel. Steel will burn. Not just melt but actually react with oxygen and burn to produce heat many times hotteer than wood alone. Concrete can burn too. Worse, if it gets hot enough concrete can explode. Though there are techniques to prevent and minimize this.
18 Oct 2007 00:56
Post 5 of 6
Replying to [zongren]:Concrete building still have electrical, gas lines, flooring, ceiling, paint, heaters, air conditioner, doors; all materials other than the concrete can cause a fire depending on the condition and age.
18 Oct 2007 02:12
Post 6 of 6
Replying to [zongren]:Concrete buildings are also destroyed by fire even thogh they are neither flammable like oil/gas nor combustible like wood /papers and does not also fall under fireproof category like asbestos/ceramics.
Concrete walls of buildings are rated for firesafety based on its fire withstanding capabilty i.e fire exposure time duration before damage sets in e.g 1, or 2 hour etc. by safety codes . Thickness of wall/ conctrete cover thickness over reinforcement rods are criteria - more thick being more fire safe.
All things are burned by fire and lead to formation oxides at long exposure to fire.
Concrete walls of buildings are rated for firesafety based on its fire withstanding capabilty i.e fire exposure time duration before damage sets in e.g 1, or 2 hour etc. by safety codes . Thickness of wall/ conctrete cover thickness over reinforcement rods are criteria - more thick being more fire safe.
All things are burned by fire and lead to formation oxides at long exposure to fire.
18 Oct 2007 02:57
Page 1 of 1