The slump cone is placed on a smooth, perfectly even, horizontal, rigid and non-absorbent surface. It is then filled with fresh concrete sample in four layers, each approximately 1/ 4 of the height...
The mould is placed on a smooth, horizontal,rigid and non-absorbant surface The mould is then filled in four layers, each approximately 1/ 4 of the height of the mould.
Each layer istamped 25 times...
The term slump used in concrete means the thickness or thinness of the concrete. The slump is measured by filling a 12" cylinder up with concrete, then flipping it over and pulling the cylinder up....