Rockbottom period is 7 days once quality concreting is done and meticulous watering the concrete , otherwise normally 21 days is recokened as the period for curing the concrete( that is, setting the concrete) to take care of failure to adhere to correct processing of laying concrete and curing with water .
The length of time that concrete takes to set, will depend on the temperature. It would take approximately 4 hours for concrete to set at a temperature of 80 degrees.
you need to have a ''keyway''---that is a groove in the base concrete,can be cut in if concrete has set,if not set,oil a 2x4lightly(lightly) & imbed it into the base concrete flush.
You cannot determine how much time it takes for magnetic line of forces to set up in space. It is not considered a real thing.
Depends how fast you set the time for. If it is set on cheetah speed and not bothered probably a couple of minutes but if it is set on a slower speed or paused a lot then it could be infinite time.
To set a 4x4 fence post, you will typically need about 1/2 to 1 cubic foot of concrete.
That varies from mix design to mix design and in highly influenced by the weather (temperature and humidity). Concrete can be made to reach initial set in under and hour, or can be delayed for days if needed. A typical mix on moderate conditions may take a 2 to 3 hours to reach initial set. Initial set is just the first 500 psi... it will continue to hydrate and "set" as long a moister is present. Concrete can continue to gain strength for months, years and even decades (though less and less and time goes on).
yes they need to be set in concrete. depending on your fence, one bag of concrete per post should be enough.
It depends on the outside temperature. Also, you can add calcium chloride at lower temperatures, to decrease set time. 70°F - 6 hours 60°F - 8 hours 50°F - 11 hours 40°F - 14 hours 30°F - 19 hours 20°F - Concrete will freeze
You pour liquid concrete into a frame and let it set.
That varies from mix design to mix design and in highly influenced by the weather (temperature and humidity). Concrete can be made to reach initial set in under and hour, or can be delayed for days if needed. A typical mix on moderate conditions may take a 2 to 3 hours to reach initial set. Initial set is just the first 500 psi... it will continue to hydrate and "set" as long a moister is present. Concrete can continue to gain strength for months, years and even decades (though less and less and time goes on).
Water
The scientific method is a definite and concrete set of rules.