WWM vs WWF
WWM vs WWF
(OP)
Sounds like pro wrestling, but my question is: Is WWM the correct designation for welded wire fabric (mesh)?
Thanks.
Thanks.
When was the last time you drove down the highway without seeing a commercial truck hauling goods?
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RE: WWM vs WWF
RE: WWM vs WWF
RE: WWM vs WWF
http:
www.SlideRuleEra.net![[idea] idea](https://www.tipmaster.com/images/idea.gif)
RE: WWM vs WWF
"mashed into the ground"
RE: WWM vs WWF
RE: WWM vs WWF
RE: WWM vs WWF
RE: WWM vs WWF
sure...
RE: WWM vs WWF
RE: WWM vs WWF
RE: WWM vs WWF
RE: WWM vs WWF
RE: WWM vs WWF
i never understood why it's so hard to get the stuff up off the ground. in my contractor days, we supported the wwf at 4' o.c. and still had someone going around during the pour pulling up the areas in between. it wasn't rocket science and didn't take that much time/effort to do.
i like to see the heavier guage stuff specified if at all. at least the industry has moved away from that rolled up crap that would tear you up if the guy on the roll end let it go after rolling out about 20' of the stuff and you were on the other end (end that the stuff rolls up toward like a wound up spring). however, it did make for some comical scenes at times (thank goodness i never saw anyone seriously hurt).
RE: WWM vs WWF
The problem with pulling up WWC (heh) is that there is NO way to provide quality assurance that you are getting what you ask for.
The wire fabric cannot be seen, it is being stood on by the workers who have no direct control over the height of the wire in the concrete, and then step over it again to get to the next area. This is absurd and goes against everything recommended in ACI in terms of placing reinforcing in a secure fashion prior to placing concrete.
RE: WWM vs WWF
I know there are two distinctly divided schools of thought on this one, but I will never cross the line again with this welded wire crap.
welded wire crap is exactly right.
RE: WWM vs WWF
RE: WWM vs WWF
Dik
RE: WWM vs WWF
RE: WWM vs WWF
In addition, who cares if a crack forms in the bottom. Nobody will ever see it. You want to control the crack dimension where it is visible (on the top).
RE: WWM vs WWF
If you are interested in thinking about this more, there is an excellent paper in the July 1997 issue of Concrete International, "A Structural Looks at Slabs on Grade" by Cesar Kiamco, which explains it in detail much better than I can.
RE: WWM vs WWF
I guess I'll stick with the traditional.
RE: WWM vs WWF
RE: WWM vs WWF
RE: WWM vs WWF
RE: WWM vs WWF
While I find that with concrete work the quality is in general much better here than in Canada, that's not to say that everything is better....
Most steel quality if comparable between the two countries, and falls into the classic (pretty much always good out of the shop, usually good on site), timber is again the same with good quality work being the norm, and the occasional horrifying nightmare job being the exception to the rule.
That said, Site Safety is no where near as good here in New Zealand as it was at home. Also awareness is very different, and the guys here on site often chuckle and call me a "blouse"; Sort of a polite/teasing "You're a girl" when I wear safety gear. Except for the once in a while someone gets hurt while I'm still there. Always happy to help with the first aid when that happend... *evil smile*
Cheers,
YS
B.Eng (Carleton)
Working in New Zealand, thinking of my snow covered home...
RE: WWM vs WWF
We use a lot of reinforcement mesh in Australia, both in slabs on ground and in suspended slabs. Probably because it is used so much in suspended slabs, our workers seem to give it as much respect as bars in terms of placing accuracy. Our standard bars are now deformed, 500 MPa, and the standard sizes are 5, 6, 6.75, 7.6, 8.6, 9.5, 10.7, and 11.9. Square meshes are usually at 200 centres each way. Rectangular meshes with the main bars at 100 centres are readily available for one way slabs, and special orders are often done for large projects.
RE: WWM vs WWF
RE: WWM vs WWF
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