YOU DICTATE THE LIFE OF YOUR CONCRETE BY CURING OR NOT CURING.
REQUEST THAT ALL EXTERIOR CONCRETE BE CURED!!!
CURING is the maintenance of a satisfactory moisture content and temperature in concrete for a period immediately following the placing and finishing so that the desired properties may develop.
50% OF SURFACE STRENGTH CAN BE LOST IF CONCRETE IS NOT CURED. Concrete most likely to scale has been weakened at the surface during the finishing and/or curing process. Curing assures the proper hydration, which allows the concrete to reach its highest potential strength.
ADVANTAGES FOR PROPER CURING
HOW TO CURE CONCRETE
THE OTHER IMPORTANT ASPECT OF CURING IS TEMPERATURE — the concrete cannot be too cold or too hot. As fresh concrete gets cooler, the hydration reaction slows down. The temperature of the concrete is what is important here, not necessarily the air temperature. Below about 50 degrees Fahrenheit, hydration slows down a lot; below about 40 degrees Fahrenheit, it virtually stops. Hot concrete has the opposite problem: the reaction goes too fast, and since the reaction is exothermic (produces heat), it can quickly cause temperature differentials within the concrete that can lead to cracking. In addition, cement that reacts too quickly does not
have time for the crystals to grow properly so it does not develop as much strength as it should.
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