Vertical placement tolerance for reinforcement in slabs-on-ground is ± 3/4 inch from the specified location. For slab thicknesses 12 inches or less, the concrete cover tolerance is - 3/8 inch ...

but the impossible task of placing the reinforcing steel and concrete slab with no tolerance isn't likely to happen. What now? The first obvious solution to the problem is that ACI 318-08 does not ...