Structural · S-SPWE4

Slab on Grade Joint and Edge Details

Materials

Elements

Columns Walls Floors / Slabs Expansion / Control Joints

About this detail

This drawing collection details various concrete slab-on-grade joint configurations, including connections adjacent to walls, sawed control joints, construction joints, minor slab steps, isolation joints at columns, structural slab transitions, CMU support conditions, and steps on grade. Reinforcement includes number four straight bars placed at eighteen inches on center at mid-depth, two number five bottom continuous bars, two number five top continuous bars, and number three dowels at eighteen inches on center. Isolation joints feature three-quarter by three-and-a-half by six-inch plates at eighteen inches on center and number four edge bars. Sawed joints are cut to one-quarter slab depth with a one-eighth-inch radius on exposed edges.

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