Contraction joints (sometimes called control joints) are used in unreinforced and lightly reinforced slabs-on-ground to minimize random cracking. By creating straight-line weakened-planes in concrete, ...

Two new developments have recently occurred regarding the installation of contraction joints in slabs-on-ground. First, the ACI Committee on Residential Concrete now recognizes joints, installed soon ...

There is an increasing trend for structural engineers to limit their role to the design of key structural members (typically beams and columns) and not other structural aspects. This can be concerning ...