PPI drugs can be both prescribed and purchased over the counter â in strengths that both cause the same level of damage to the kidneys. Researchers recommend PPIs should be avoided, especially when acid reflux or the like can easily be treated with kidney-safe H2 blockers.
Recommended thickness of concrete slabs. 1  Driveways: 6 - 8 inches (0.15 - 0.2 m). 2  Side walks, barn and granny floors: 5 - 6 inches (0.125 - 0.15 m). 3  Porches, Home garage floors: 4 - 5 inches (0.1 - 0.125 m).
Determine the Size and Depth of a Cement Slab. The cost of a cement slab is largely dependent on its size and thickness. In most cases, a cement slab will be 4 inches thick with 2 inches of the cement being below ground and 2 inches being above ground.ince this is a labor-intensive project, the cost of labor will often be significantly more than the cost of the materials themselves. On average, the cost of installing a cement slab can run between $3 and $12 per square foot of space.