Structural · S-AZ57G

Horizontal Wall Joint

Materials

Elements

Walls Expansion / Control Joints Reinforcing

About this detail

A horizontal construction joint in a reinforced concrete wall occurs between a first and second concrete pour. The joint interface is roughened to a minimum one-quarter inch amplitude for shear transfer, with continuous reinforcing steel continuing through the joint. A continuous two-by-four is provided at the edge to form a continuous edge notch, which is removed before the second pour. Form ties span between the forms on the exposed face, positioned a maximum of three inches below the joint line with a one-half inch clearance dimension. When both faces are exposed, continuous two-by-fours are required on both faces, and form ties must be tightened after removing the wood blocking prior to placing subsequent concrete.

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