As joint spacings and concrete shrinkage increases ... With Option 2, we allow slabs to crack randomly but control crack widths with steel reinforcing bars or welded wire reinforcement.

By creating straight-line weakened-planes in concrete, contraction joints “control” the cracking location by inducing cracks at predetermined locations. As slabs shrink due to cooling and ...

Rent a concrete saw to make stress relief and crack-control joints in fresh concrete. Cut to half the depth of the concrete slab. Locate joints and seams. All concrete eventually cracks to some ...

You'll need to smooth the entire surface of the freshly poured slab, then create grooves in it to act as control joints. The more complex option is to build a frost-proof concrete foundation ...