A slab-on-grade construction joint features a 1/8-inch radius on edges only where the slab is exposed, with a 2-foot lap splice in the reinforcement. The minor step detail shows a vertical offset up to 4 inches with a 2-foot transition zone. The CMU supporting detail includes a thickened slab recess reinforced with two number 5 bottom continuous bars and two number 5 top continuous bars, along with number 3 dowels at 18 inches spacing. Steps on grade incorporate number 4 reinforcing bars at 18 inches spacing along the stepped profile.
1/8" RADIUS ON EDGES ONLY WHERE SLAB IS EXPOSED (2) #5 BOT CONT (2) #5 TOP CONT #3x @ 18" DWL. SEE TYP CMU DETS SUPPORTING CMU CONSTRUCTION JOINT STEPS ON GRADE MINOR STEP 24" 4" 1 1 #4 @ 18" #4x @ 18" 2'-0" 1'-6" 1'-6" 1 (MAX) 1 1 SLAB THK 4" MAX 2' - 0" 1' - 0" 2'-0" LAP 6 "
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