In CBR test why 20mm passing and 4.75mm retained materials are used?

Arijit Bhattacharya @Arijit-Bhattacharya-9

17 June 2022 0 6K Report

In india, the material used for California Bearing Ratio test should pass 20 mm sieve and should be retained on 4.75 mm sieve. What is the reason behind choosing these particular sieve sizes?

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