If the correct concrete mix is used and laid properly, hot weather should not make concrete crack. Instead, it is the freeze-thaw cycle that makes concrete crack.
A little bit, but not much. If it is really hot, and then really cold, then your cement will crack.
A concrete patio usually cracks due to heat cold. If it is to cold it contract and break. If it is to hot it will expand and break. Then water can seep into those cracks and freeze causing the crack to expand
To allow for expansion in hot weather
How stuffy is the weather today. Cloudness and hot temperature make the weather stuffy.
Either avoid walking on the concrete, or make sure your feet are always wet. This will help protect you from the burn of the concrete. Just make sure to dip them in the water every now and then.
Due to dry climate or environment,your nasal membranes dry out and crack which results to bleeding. Ok there you go. I hope I answered your question.
An "expansion joint" is a joint left in between sections of the same material, like concrete or steel, that allows movement as the material heats up or cools down. Without it, concrete, for example, can expand and crack in hot temperature.
It might be possible to melt concrete if lava in contact with it was hot enough. But it is more likely that concrete would decompose and become "crumbly" before it "melted" when heated.
It allows for the expansion of the concrete during hot weather and provides a water block during rains and that prevents water freezing (and expanding) during the winter. Ice expanding in those cracks would damage the cement slabs.
Usually 24 hours, depending on temperature and humidity. If it is excessively hot, you could walk on it sooner, and if it is cold or damp, you might want to give it a little longer. If it is hot, you might want to consider covering the concrete with plastic a couple of hours after finish, so that the moisture will not excape too rapidly, causing the concrete to shrink and crack. If you are going to put a lot of weight on the concrete, such as a car, wait at least a week, to be safe.
Concrete can reach temperatures of up to 572 degrees Fahrenheit (300 degrees Celsius) before it begins to lose its structural integrity and strength. After this point, it may start to crack, spall, or experience other detrimental effects.
What year and make vehicle?.