How to check consistency of Bituminous material and its significance

Wednesday, March 20, 2013 14:46
Posted in category Transportation Engineering
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To find consistency of bituminous material, penetration test is performed.

Penetration of Bituminous material

The penetration of bituminous material is the distance in tenths of millimeter that a standard needle penetrates vertically into a sample of material.

The sample material is of bitumen. And the test is performed under fixed conditions of temperature 25 C (77F), load  100 gram and time 5 seconds. Other conditions may be used for special testing. In such case, the specific conditions of test shall be reported.

Significance and use

The penetration test is used as a measure of consistency. Higher values of penetration indicate softer consistency.

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