How does concrete cure?

Updated: 9/17/2023
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Q: How does concrete cure?
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When is green concrete considered cure?

28 days is the usual cure time for structural concrete. For street pavements and driveways made with 6-Sack concrete, 3 days of cure will support a car, but 7 to 10 days is required for it to support trucks. All concrete continues to cure forever, as long as moisture is present.

Is there a method used to shorten the time it takes to cure concrete?

Yes and many so ask the supplier of your concrete.

Will dry concrete cure in a below ground hole from ground moisture transfer?


Will concrete cure normally if covered with soil after 24 hours?

no, not normally. It will cure more slowly and how much slower depends on how much dirt is piled on it.

What temperature does concrete need to be to harden?

all things that need to dry are based on 72 degrees concrete needs 30 days to fully cure.

Why can concrete cure underwater?

Yes it can. It actually cures harder under water then above it. True.

How long should a concrete driveway cure before parking cars on it?

At least 3 days

How long for bagged concrete to cure?

Concrete never fully cures, but a non-quicksetting concrete should be firm on the surface in about 4-8 hours, and usable for foot traffic or post setting in 36 hours.

How can you weaken concrete?

Not much you can do if the concrete is already hard, but if you are talking about plastic concrete (still in its wet state), there's lots you can do to hurt/weaken it:If you had the wrong chemical admixturesAny addition of water at the job site will weaken the concreteFailture to properly cure the concrete

What is the minimum cure time for concrete placed in temperatures of 50 degrees Fahrenheit or above?

5 days

When can you put weight on new concrete?

New concrete will need to cure for several days. Depending on how much weight it is going to hold, this should be postponed as many extra days as possible.

Can you needed to cure a blinding concrete?

All concrete need curing, since blinding is not structural concrete and treated as leveling course only, duration of curing may reduced. There is no specific period mentioned in relevant standard for curing of blinding.