We use a large grinder with a diamond end circle and cut off the extra hills that were circled with chalk so that the floor has a flat surface. Then we knead the concrete solution in the trough and add to its composition the cement of the brand 500 (quickly freezes) and gravel of the small fraction. We remove all construction garbage from the floor surface where the fill will be made. The finished solution should be thick so that it does not spread and has a certain viscosity.
