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concrete pan joist top slab thickness
this is a survey: ibc table 719.1(3) shows 4.6" thickness for 2 hour fire rating when using carbonate aggregate concrete. do you usually round this number down to 4 1/2" or round up to 4 3/4" or 5"?
check out our whitepaper library.
up to either 4 3/4".
round up to 5".
5" may certainly lead to less mistakes in the field.
however, that 1/4" of concrete can be a savings depending on the size of the building.
100'x200x1/4" is 15+ yards of concrete
50'x50'x1/4" is almost 2 yards of concrete
i seem to re
1/4" of concrete, assuming $150 per cubic yard for concrete material (assuming finishing is a wash) amounts to about 12 cents per square foot to the building.
meanwhile, the interior designer is trying to decide between the quarry tile at $5.00/sf or the marble tile at $10.00/sf.

2009-09-08, 12:22 PM	#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	concrete pan joist top slab thickness concrete pan joist top slab thickness this is a survey: ibc table 719.1(3) shows 4.6" thickness for 2 hour fire rating when using carbonate aggregate concrete. do you usually round this number down to 4 1/2" or round up to 4 3/4" or 5"? check out our whitepaper library. up to either 4 3/4". round up to 5". 5" may certainly lead to less mistakes in the field. however, that 1/4" of concrete can be a savings depending on the size of the building. 100'x200x1/4" is 15+ yards of concrete 50'x50'x1/4" is almost 2 yards of concrete i seem to re 1/4" of concrete, assuming $150 per cubic yard for concrete material (assuming finishing is a wash) amounts to about 12 cents per square foot to the building. meanwhile, the interior designer is trying to decide between the quarry tile at $5.00/sf or the marble tile at $10.00/sf. __________________ 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]