Roof Concrete Curing Time

The minimum period for curing concrete to attain maximum strength is 28 days.

Roof concrete curing time.

The curing of concrete for longer duration increases the strength and durability of concrete structural members. However after 28 days of the casting of a concrete 99 of the hydration process of the concrete is completed. At seven days you should have concrete that is cured to 70 full strength or greater. But to answer the question of how long does concrete take to set concrete setting time is generally 24 to 48 hours.

28 days at this point the concrete should be fully cured. Curing time for concrete. Without curing don t worry sir its all okay the presence of water is essential to cause the chemical action which accompanies the setting of concrete normally there is an adequate quantity of water at the time of mixing to cause hardening of concrete but it is necessary to retain water until the concrete has fully hardened. 90 of concrete design strength achieved in 28 days.

At this point the neighborhood dog will not leave his footprints in it but you should keep it clear of heavy equipment during this time period. This suggested length of time comes not from nrca but was garnered from the concrete industry s recommendation for the appropriate amount of time for concrete to cure and develop adequate compressive strength. In standard industrial cases full strength concrete is recognized at 28 days. For a clear understanding check the below graph.

24 to 48 hours after inital set forms can be removed and people can walk on the surface. K umapathi it was left for 3 to 4 hrs. 7 days after partial curing traffic from vehicles and equipment is okay. Further to which continuation of curing is of no use.

Typically the roofing industry has required a 28 day curing period prior to testing the deck for dryness and suitability for roofing.