What provision can be made to avoid cracks?
There are many reasons why concrete cracks. Cracks rarely affect structural integrity. The majority of concrete cracks usually occur due to improper design and construction practices, such as: omission of isolation & control joints, improper jointing practices, improper subgrade preparation, the use of high slump (very wet) concrete or addition of water on the job, improper finishing and inadequate curing. Concrete “shrinks” slightly as it hardens, therefore, proper spacing of joints is most important. Should there be joints in a concrete driveway? Install control joints at a spacing of no more than 10’x10′. Spacing joints at wider intervals invites random cracking. While such cracks are generally not a structural problem and will not reduce the service life of the driveway, they are unsightly. Also avoid joint patterns that produce rectangular or triangular sections. Lay out your joints to form square sections. If in doubt, make the sections smaller, not larger. Ask your contractor to
