It dries, the water or liquid in it evaporates
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.
yes they need to be set in concrete. depending on your fence, one bag of concrete per post should be enough.
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 pour liquid concrete into a frame and let it set.
Water
The scientific method is a definite and concrete set of rules.
Post tensioning is the prestressing of a concrete member by tensioning the reinforcing tendons after the concrete has set
Regular sugar will cause the concrete to never set.
Anchor bolts are used to secure items to concrete. They can be wet-set meaning inserted into the concrete while it is still hardening or the concrete can be drilled and the anchors set in to them.
you can't once set.
To ensure that posts are set in concrete without mixing, you can use pre-mixed concrete that only requires water to be added. This eliminates the need for mixing on-site and helps maintain the integrity of the concrete when setting the posts.
yes it can