Concrete Floor Slab Movement Joints

Concrete Floor Slab Movement Joints. Joint spacing that is greater than 15 feet require the use of load transfer devices (dowels or diamond plates). Guide for concrete floor and slab construction, aci 302.1r, american concrete institute, farmington hills, Internal restraint is created when one part of a slab shrinks more than another, or shrinks in a different direction.

Contraction joints, in theory, accommodate the movement created by the shrinking of the concrete slab as it cures. Place joints under walls or under carpet areas. Tips for placing concrete expansion joints place joints around 30 times the slab thickness apart.

Gallery of Concrete Floor Slab Movement Joints

A joint cut into a slab to ensure that as the concrete slab. Be designed to permit movement and/or to transfer load. Contraction joints, in theory, accommodate the movement created by the shrinking of the concrete slab as it cures. Joints are commonly spaced at distances equal to 24 to 30 times the slab thickness.