Structural · S-NX2ZG

Slab on Grade Control Joint Layout and Sand Drainage Layer

Materials

Elements

Floors / Slabs Arches Expansion / Control Joints Drainage Reinforcing

About this detail

This structural detail specifies a four-inch reinforced concrete slab on grade placed over a four-inch layer of free-draining sand and/or gravel. The slab is reinforced with number four reinforcing bars spaced at sixteen inches on center each way, centered within the thickness of the slab. Control joints are laid out typically across the floor area with spacing per general structural notes. The top of slab elevation is set at one hundred feet zero inches, with architectural drawings governing sloped floors, depressed slabs, and drain locations.

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