Types of Joints
05/03/2020 · Approved early concrete sawing equipment may be used to cut the joint to a depth of 1 1/4 inch. For sealing, the joint width must be a minimum of 1/4 inch wide. Figure : 'C' Plain Contraction Joint b. Doweled Contraction Joints: Dowel bars are used to supplement the load transfer produced by aggregate interlock. The joints are sawed to a depth of T/3 and are .