According to IRC (Indian Roads Congress), what is the maximum stripping value of aggregate to be used in bituminous construction like surface dressing?

According to IRC (Indian Roads Congress), what is the maximum stripping value of aggregate to be used in bituminous construction like surface dressing?

Right Answer is:

25%

SOLUTION

A stripping value test is conducted to determine the effects of moisture upon the property of adhesion of the aggregate with different types of bituminous binders. Thus, this test is of significant value to ascertain the suitability of the two materials viz. bitumen (binder) and aggregates, because one particulars aggregate may be satisfactory with one binder and unsatisfactory with another; and the same being true for the binders.

IRC has specified that stripping value of the aggregate value of 25%; when aggregate coated with bitumen in immersed water coated with bitumen in immersed water bath at 40°C for 24 h.

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