depends on the thickness and the water content, 3-4 days is safe for all
Imediatly after trowling
probably about 30-50 years
before plcement in any mold with out compction is the fresh concrete. or just after plceing the concrete before initial setting is the fresh concrete.
First of all, concrete does not "dry" to become hard. It cures, which is a chemical interaction between its water and its portland cement. Usually, a couple of hours is plenty of time for concrete to 'set' enough to not be damaged by rain. The best and strongest concrete never dries out for the first 28 days from pouring it.
2 days
Imediatly after trowling
Concrete should cure for at least 28 days before it can be used for construction purposes.
ideally 28 days
probably about 30-50 years
127 hours
Concrete forms should generally be left in place for at least 24 to 48 hours to allow the concrete to properly set and cure. Leaving the forms on for too long can make it difficult to remove them and may result in damage to the concrete.
At least 3 days
before plcement in any mold with out compction is the fresh concrete. or just after plceing the concrete before initial setting is the fresh concrete.
How long will a driveway of concrete last in Louisiana?
A cement anchor is a general term to describe a fastner that is attached to concrete. Common concrete anchors have a lead tip that mushrooms and "grabs" the concrete. Usually a hole is first drilled into the concrete. Then a concrete anchor is driven into the hole using a hammer. This allows for attaching wood or metal to concrete.
To repair concrete effectively and efficiently, start by cleaning the damaged area thoroughly. Next, apply a concrete patching compound and smooth it out with a trowel. Allow the patch to dry completely before sealing it with a concrete sealer. This will help prevent future damage and ensure a long-lasting repair.
Yes. . it is concrete. . and it is close. . ever driven through a tunnel, even a short one, and had problems with radio reception. So yes. . a concrete wall could reduce signal