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Originally posted by AgentSmith
Apparantly as 12m8keall2c says it doesn't, I'm not a civil engineer and don't work with this stuff, so it's a type of wire. Looks similar to what's in those other pictures still though and I'd love to know how anyone can distinguish between that and the wire.
How come some say there was none though? How did the concrete get it's strength then?
Originally posted by AgentSmith
No your right it's not, it's one of the NIST labs, where they recreated the floor for tests.
Can you? I can't it's so fuzzy you can barely make much out at all. But funnily enough if you imagine looking at the bloke in the NIST photo from the opposite direction, you can see the bar they have going across and what's that mesh type stuff you can faintly see in the back of your photo?
How did the concrete get it's strength then?
Originally posted by AgentSmith
Originally posted by Jack Tripper
Comparing pictures that are obviously below ground level to the upper floors and writing off obvious rebar between the core colums off as electrical conduit!
Uh? Did you not look at the report, the pictures were taken when NIST recreated the floors to carry out tests.. I already said that....
Originally posted by AgentSmith
Where did all the rebar used in the floors go by the way? Can we see it in the pictures? How can we tell which is from the core and which is from the floors?
Originally posted by HowardRoark
another thermite cut column!
Originally posted by AgentSmith
Can you see the ribbing in this electrical conduit?
Originally posted by HowardRoark
Feel free to PM me and I will be glad to give you Snoonian's e-mail address. She will tell you exactly what she told me about that above refrenced quote
Originally posted by HowardRoark
For comparison, the truss diagonals were 1" thick.
I see a lot of electrical conduit in some of those pictures.
Originally posted by Jack Tripper
Could be. The angle cut columns likely are that's for sure.
Originally posted by Jack Tripper
Electrical conduit is infinitely more flexible than rebar.
Originally posted by bsbray11
That's funny. Let's compare:
Originally posted by ANOK
It's a concrete floor on top of a metal base, what extra strength would it need?
Do concrete driveways use rebar? No...
Originally posted by 12m8keall2c
Floors:
Corrugated, and typically galvanized, steel decking spot-welded to the joists. Wire mesh is layed upon the decking. While pouring the concrete you "lift" the mesh, as you go, to ensure in is IN the concrete to enhance strength and prevent shifting/cracking.
The gauge of the wire mesh is much smaller (1/8" to 1/4") than the rebar used in vertical columns pours.