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Can You Use Inch Rock Without Fines Under Concrete Slab

Can You Use Inch Rock Without Fines Under Concrete Slab

2019-7-2 · Install crushed rock without fines as your slab base compacted very flat. Place rigid insulation over the rock and then your vapor barrier over the insulation. Install a mat of 3 rebar on 1 12-inch dobies. Tie the tubing to the top of the rebar. Pour a 4 12-inch slab. When you make your 1-inch-deep control cuts you will not hit the .

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