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Run: Slab on Grade Pre-Pour Inspection

Use this slab-on-grade pre-pour inspection template to verify subbase, vapor barrier, reinforcement, dowels, and edge conditions before concrete placement. I...

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General Site Readiness

Verify the slab area, dimensions, and pour boundaries match the latest approved drawings or field layout.
Confirm there are no obstructions that would prevent concrete trucks, pumps, screeds, or finishing equipment from reaching the work area.
Check the slab area and adjacent work zone for water, loose debris, or contamination that could affect the pour or slab performance.
Verify all planned penetrations, sleeves, blockouts, and embeds are in place, correctly located, and protected from movement during placement.
Confirm conditions are acceptable for the planned pour, including no active rain, excessive wind, or other conditions that would compromise placement or finishing.

Subbase Preparation

Confirm the subbase has been compacted per project specification and is firm, uniform, and free of soft spots.
Measure the prepared subbase elevation against the required grade and confirm it is within project tolerance.
Inspect the prepared surface for ruts, ridges, rocks, or other conditions that could damage the vapor barrier or affect slab support.
Verify the base course material matches the project specification and has been placed to the required thickness.
Confirm compaction verification, test results, or field approval is available for review when required by the project.

Vapor Barrier Installation

Verify the installed membrane type, thickness, and product match the approved specification or submittal.
Inspect seams, overlaps, and transitions to confirm the barrier is continuous and properly taped or sealed.
Check the membrane for damage, holes, or gaps that would compromise moisture protection.
Verify the membrane is properly lapped, turned up, and detailed around edges, penetrations, and blockouts per project requirements.
Confirm the membrane has not been displaced by traffic, reinforcement placement, or other site activity.

Reinforcement Mesh

Confirm the installed mesh type, wire size, and spacing match the approved drawings or specification.
Verify mesh overlaps are installed to the required lap length and tied or secured where specified.
Check that reinforcement is supported so it will remain at the specified height during the pour and not rest on the vapor barrier or subbase.
Inspect reinforcement for contamination that could impair bond or indicate improper storage/handling.
Confirm the reinforcement position and support arrangement will allow the specified concrete cover at edges and top surfaces.

Dowels and Edge Conditions

Confirm dowels are present where required and match the spacing shown on the drawings.
Check that dowels are straight, properly oriented, and fixed so they will not shift during concrete placement.
Inspect perimeter forms for line, grade, and stability before the pour begins.
Verify joint materials are in place at walls, columns, or other locations specified by the plans.
Confirm openings and edge conditions are marked, secured, and ready to remain clear during placement.

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