SC Concrete Practice Questions - South Carolina Concrete Contractor Examination Exam

Before placing a concrete slab-on-ground, IBC site preparation requires which of the following?

Remove vegetation, topsoil, and foreign material from the area to receive the slab Leave the topsoil in place to improve slab friction Pond the subgrade for 24 hours so the soil is saturated Place the vapor retarder on top of the finished slab after troweling

Correct Answer:

Remove vegetation, topsoil, and foreign material from the area to receive the slab

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