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Why is attrition test performed?

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in Basic Civil Engineering by (111k points)
Why is attrition test performed?

(a) To find resistance to scratch

(b) To find resistance to weathering

(c) To find resistance to wear

(d) To find resistance to dressing

I have been asked this question by my school teacher while I was bunking the class.

The above asked question is from Tests on Stones topic in section Materials for Construction of Basic Civil Engineering

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Correct answer is (c) To find resistance to wear

Explanation: Attrition test is performed to test the rate of wear of stones that are used in road construction. It checks the rubbing against the same material of stone and is expressed in percentage.

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