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.

Contraction joints create weakened planes in concrete slabs to help control the location of cracks and reduce random cracking. The most popular ways of creating contraction joints is by using saw ...

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 ...