Contraction joint spacing for residential slabs-on-ground cast monolithically with perimeter footings.
Contraction joint spacing for slabs-on-ground at locations of interior footings.
Contraction joint layout for a residential slab-on-ground that’s isolated from the perimeter footings.
Contraction joint layout for residential slab-on-ground which is monolithic with perimeter footings.
A grooving tool is commonly used to install contraction joints in residential driveways, sidewalks, and garage slabs.
Early entry sawcutting creates clean and effective joints.
This sawcut contraction joint was filled with epoxy to resist forklift wheel loading. The crack through the slab showed that the contraction joint was effective.
An embedded tape contraction joint where a strip of plastic tape was pushed into fresh concrete.