Yes, rebar is usually set on chairs. Wire mesh is typically laid right on the ground, and pulled up into the concrete as it's poured, using a hooked tool. Steel must be in the middle of the slab to be effective. We would usually use rebar for footers, or where joining concrete to other concrete, and mesh for slabs. Mesh is much easier, and less labor intensive.

Fiber mesh is added at the batch plant most often, but can be added to the truck on the jobsite, providing there is time for adequate incorporation throughout the entire load.

Last edited by sprkplug; 10/08/15 04:46 PM.

"Forget pounds and ounces, I'm figuring displacement!"

If we accept that: MBG(+)FGSF(=)HBG(F1)
And we surmise that: BG(>)HBG(F1) while GSF(<)HBG(F1)
Would it hold true that: HBG(F1)(+)AM500(x)q.d.(=)1.5lbGRWT?
PB answer: It depends.