Issue: Finishing concrete while bleed water is on the surface is one of the primary causes of surface defects in concrete slabs....

Issue: Plastic shrinkage cracks are cracks in the surface of concrete, usually flatwork, that appear before the concrete actually...

Issue: Cold weather slows the cement/water reaction (cement hydration process) which in turn increases the set time of freshly...

Issue: Curling or warping of a concrete slab is caused by differences in moisture and temperature conditions between the top...

Issue: Other terms for concrete blow-up include: buckling and tenting. Although the concrete doesn’t actually explode and blow-up,...

Issue: Homebuyers expect a high level of quality, and because garage floor cracks are so visible, they often think that cracks...

Issue: A crazed concrete surface contains a network pattern of very shallow, fine/hairline cracks. They do not penetrate much...

Issue: All surface defects in concrete are of concern. To think that a short article such as this can address all of the causes...

READY MIX TECH TOPIC: Discoloration / Spotted Concrete Driveway Discoloration of concrete, especially in a residential driveway,...

Additional Resources Surface Discoloration of Concrete Flatwork, PCA Research Department Bulletin RX 203....