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fire rating of 4-inch thick concrete wall
i have a pre-cast concrete building that will have four-inch wall thickness. if i recall correctly, this should give at least 2 hours of fire rating. am i correct?
lutfi
i would think so - you would have to check the ul book or within the ibc (i re
the pci manual addresses this (5th ed - fig 9.3.2, 6th ed - fig 9.3.6.1).
a 4" thick carbonate agregate concrete wall will give you 1 1/2 hour fire rating. if you use light weight concrete you can get a 2 1/2 hour rating.
(using carbonate aggregate concrete wall you'd need a 5" thick panel to meet a 2hr fire rating.)
i hope this helps. if you want a copy of the charts your local precaster might be able to fax a copy of it over to you.
astructural,
i found the same table. thanks for your help.
lutfi

2009-09-09, 11:55 AM	#1
huangyhg 超级版主注册日期: 04-03 帖子: 18592 精华: 36 现金: 249466 标准币资产: 1080358888 标准币	fire rating of 4-inch thick concrete wall fire rating of 4-inch thick concrete wall i have a pre-cast concrete building that will have four-inch wall thickness. if i recall correctly, this should give at least 2 hours of fire rating. am i correct? lutfi i would think so - you would have to check the ul book or within the ibc (i re the pci manual addresses this (5th ed - fig 9.3.2, 6th ed - fig 9.3.6.1). a 4" thick carbonate agregate concrete wall will give you 1 1/2 hour fire rating. if you use light weight concrete you can get a 2 1/2 hour rating. (using carbonate aggregate concrete wall you'd need a 5" thick panel to meet a 2hr fire rating.) i hope this helps. if you want a copy of the charts your local precaster might be able to fax a copy of it over to you. astructural, i found the same table. thanks for your help. lutfi __________________ 借用达朗贝尔的名言：前进吧，你会得到信心! [url="http://www.dimcax.com"]几何尺寸与公差标准[/url]