Why Does New Concrete Crack? | R&M Concrete- does stamped concrete crack , · Why does concrete crack? When concrete is curing it will shrink on average 1/16th of an inch for every 10 linear feet. This may sounds like a low number, but shrinkage cracking is a common concrete mistake.Eliminating Joints in Stamped Concrete| Concrete ...Fibercon International In the 1980s this stamped concrete driveway and patio were installed with steel fibers. Control joints were cut at about 20-foot intervals. Twenty years later, the driveway is crack-free.