STANDARD: ASTMC143, BS1881
This test method is a variation of the simple slump test and subjects the concrete to vibration after removal from the slump cone. The time taken for the concrete to be recompacted is taken as a measure of workability. The small vibrating table operates at a fixed amplitude and frequency, and in the test a plastic disc is placed into contact with the upper surface of the concrete. The test is completed when the lower surface of the disc has been completely coated with cement grout.
Counter weight when VB Test
Counter weight when VC Test
Counter weight when on modified VC Test
Slump cone size