What actually happens to make it set
Concrete has chemical fixers added to it that allow it to dry -- even under water. Or else those bridge anchors could never happen
Chemical changes occur and this causes the setting.
What a plan guy ! what a plan !! ... What a fabulous cycle rack that can make !!....... if you're no longer keen on red you may continually paint the cheeks Blue !.. you would possibly want to patent it !!.. Like that geezer who planted cat's heads contained in the course of the line !
