Civil Engineering Slump cone test on concrete

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Slump Cone Test in Civil Engineering

  slump cone test is conducted to determine the workability of concrete.
 It needs a slump cone for test. Slump cone is a vessel in the shape of a frustum of a cone with diameter at bottom 200 mm and 50 mm at top and 300 mm high.
slump cone test
This cone is kept over a impervious platform and is filled with concrete in four layers. Each layer is tamped with a 16 mm pointed rod for 25 times.
 After filling completely the cone is gently pulled up. The decrease in the height of the concrete is called slump. Higher the slump, more workable is the concrete.

slump cone test


The desired values of slump cone test for various works have been shown in Table below:

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