![]() The supplier wants it drier because that helps achieve strength also placement contractor wants that mud wetter because it makes it much easier to get it into place. “Even with the ideal floor designs and proper construction, it’s unrealistic to expect crack-free and curl-free floors. In this ACI (American Concrete Institute) addresses this issue in ACI 302.1-04. This is done by properly preparing this subase, assuring that the concrete isn’t too wet, utilizing reinforcement where needed, and by properly spacing and placing crack control joints and expansion joints.īut, sometimes cracks happen in spite of any precautions taken. Best that a contractor can do is try to control the hairline cracking. Once an owner sees a crack in his slab or wall, especially if the concrete is relatively new, he automatically assumes there is something wrong. Hairline Cracks in concrete are extremely common but often misunderstood. ![]() Hairline Cracks in New Concrete Driveway.Hairline Cracks in Concrete Block Walls.Hairline Crack in Basement Wall Leaking.Hairline Crack in Concrete Slab Foundation.Temperature and Shrinkage Cracks in Concrete
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