几何尺寸与公差论坛------致力于产品几何量公差标准GD&T (GDT:ASME)|New GPS(ISO)研究/CAD设计/CAM加工/CMM测量 - 查看单个帖子

pre precast floor planks
i have a building built in 1966. the floor slabs are concrete 16" thick with 12" diameter tubes cast in (like todays hollow core planks). my question is what do you think these 12" diameter tubes are made of? did they have pvc back then? steel or iron tubes seem like a lot of dead load.
pylko,
we ran into a situation similar to this a few years back and the tubes used there were transite pipe sections. i wonder if those you encountered might be transite also?
david
beware of transite... it's asbestos!
wasn't transite used for water pipes years ago?

__________________
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]

2009-09-15, 02:03 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	pre precast floor planks pre precast floor planks i have a building built in 1966. the floor slabs are concrete 16" thick with 12" diameter tubes cast in (like todays hollow core planks). my question is what do you think these 12" diameter tubes are made of? did they have pvc back then? steel or iron tubes seem like a lot of dead load. pylko, we ran into a situation similar to this a few years back and the tubes used there were transite pipe sections. i wonder if those you encountered might be transite also? david beware of transite... it's asbestos! wasn't transite used for water pipes years ago? __________________ 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]