you use inch rock without fines under concrete slab

Installing An Engineered Hardwood Floor Over A Concrete Slab Installing An Engineered Hardwood Floor Over A Concrete Slab This article is divided into three sections. Be sure to also read What You Need To Understand Before Deciding To Use Hardwood Flooring Over A Concrete Slab . Steel Buildings Footers and Foundations You'll need to build the forms for a 4" thick slab using minimum 2800 psi concrete - make it thicker if you're putting heavy vehicles or RVs on it. The footings will be 12" deep, using the 4"' of slab as a . Guidelines for Exposed Aggregate Finishes 2015 • The slab is screeded off in the same manner as normal concrete. Leaving the concrete 1/8-3/8" low in the seeding is fine as the aggregate will increase the thickness at the surface.    Read More