A vertical construction joint between a first and second concrete wall pour features a twelve-inch long keyway spaced at twenty-four inches on center, with two rows of keys required where the wall thickness exceeds sixteen inches. Typical horizontal wall reinforcement continues across the joint interface, with surfaces cleaned prior to placing concrete. The joint detail includes dimensional spacing for the one-and-a-half-inch key and equal spacing for reinforcing bar placement within the concrete wall.
FIRST POUR TYPICAL HORIZ WALL REINF CLEAN SURFACE PRIOR TO PLACING CONCRETE 12" LONG KEY @ 24" (2 ROWS OF KEYS WHERE WALL IS THICKER THAN 16") EQ EQ EQ CONC WALL "T" 3" 3" 1 1/2" KEY SECOND POUR
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