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What is the CBR value of the soil if the CBR value at 2.5 mm penetration is found to be 4.5% and that at 5 mm penetration is found to be 4.3%?

What is the CBR value of the soil if the CBR value at 2.5 mm penetration is found to be 4.5% and that at 5 mm penetration is found to be 4.3%? Correct Answer 4.5%

The highest CBR value obtained is reported as the CBR value of the soil. Normally, the CBR at 2.5 mm penetration is found to be higher than the 5 mm penetration and hence is reported as the CBR value of the soil. If 5 mm CBR value is higher, the test is repeated and if the same results are obtained, then it is taken as the CBR value of the soil.

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