Structural · S-26DQF

Raised Concrete Floor Over Rigid Foam

Materials

Concrete Reinforced Concrete

Elements

Floors / Slabs Arches Expansion / Control Joints Anchors / Embeds Reinforcing

Connections

Embed Plate

About this detail

A four-inch hardrock concrete slab is cast over shaped rigid foam blocks supported by an existing structural concrete slab. The existing slab surface is roughened to one-quarter-inch amplitude and cleaned. Vertical reinforcing bars are anchored into the existing slab using drilled epoxy with a four-inch minimum embedment. Number four continuous reinforcing bars are placed at the top and bottom, with additional number four bars spaced at twenty-four inches on center each way in the topping slab. When the foam block height exceeds two feet, a horizontal number four bar is provided at mid-height.

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