Hi

I'm planning on a concrete drive. If I use re-bar in the concrete can I get
away with less thickness?

Most sources suggest 6" for driveways. Could I use 4" & re-bar?

Dave

On Tue, 12 Apr 2005 16:02:13 GMT, "David Lang"
wrote:

If I use re-bar in the concrete can I get
away with less thickness?

For typical drives, I doubt it. The thickness limit isn't for
ultimate strength, it's to improve stiffness. If it's thin enough to
bend, then it will also crack.

No doubt you could do this with some complex pre-stressed tendons run
low through the slab. But for the average "drop in a sheet of
weldmesh" approach, then it won't stop the bending.

On Tue, 12 Apr 2005 16:02:13 GMT, "David Lang"
wrote:

Hi

I'm planning on a concrete drive. If I use re-bar in the concrete can I get
away with less thickness?

Most sources suggest 6" for driveways. Could I use 4" & re-bar?

Dave


You need 50mm of concrete arround the bar, so 50mm+20mm bars (10mm
mesh) +50mm is over 4 inches, assuming you can do the 50mm accuratly.

From my experience I very much dought the mesh is cheeper than the
concrete you save.

Rick