Structural · S-S2AR7

Typical Slab-On-Grade Details

Materials

Concrete

Elements

Columns Walls Floors / Slabs Expansion / Control Joints Anchors / Embeds Reinforcing

Connections

Rebar Splice / Development

About this detail

Typical slab-on-grade conditions include an isolation joint at a wall or column, a sawcut control joint, a construction joint with smooth dowels, and a standard slab section. The slab consists of a five-inch concrete slab reinforced with number four bars at twelve inches on center each way at mid-depth, supported over a continuous vapor retarder, four inches of clean one-half inch crushed rock base, and prepared subgrade. Isolation joints feature a one-quarter inch premolded filler with sealant at exposed surfaces and two number four bars at the edge of the slab. Sawcut joints incorporate a one-eighth to one-quarter inch wide by one and one-quarter inch deep sawcut with every other bar cut at the joint. Construction joints utilize five-eighths inch diameter by sixteen-inch long smooth dowels at twelve inches on center with greased ends and bond breakers, located at designated control joint locations within a thickened slab edge.

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