The difference in level between the height of the mould and that of the highest point of the subsided concrete is measured. This difference in height in mm. is taken as Slump of Concrete.
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...
Slump test is the most commonly used method of measuring workability of concrete.
It does not measure all factors contributing to workability, nor is it always representative of the placability of...
The slump test gives fairly good consistent results for a plastic-mix. This test is not sensitive for a stiff-mix. In case of dry-mix, no variation can be detected between mixes
of different...