True Slump:
The concrete mass after the test when slumps evenly all around without disintegration is called the true slump.
Shear Slump:
When one-half of the concrete mass slide down the other is called the shear slump. This type of slump is obtained in a lean concrete mix.
Collapse Slump:
When the sample is collapsed due to adding excessive water, it is known as collapse slump.
Zero Slump:
For very stiff or dry mixes it does not show any changes of the slump after removing the slump cone.
