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Classification of Coarse Grained Soil

Consider the ...

Question

Consider the following statements:
1. The minimum value of group index for a soil can be taken as zero.
2. The maximum possible value of group index for a soil is twenty.
Which of these statements is/are correct?

A

Both 1 and 2

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B

1 only

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C

2 only

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D

Neither 1 nor 2

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Solution

The correct option is A Both 1 and 2
(a)
For qualitative evaluation of the desirability of a soil as a highway subgrade material, a number referred to as the group index has been developed. It varies from a value of 0 to 20, lower the value higher is the quality of the sub-grade and greater the value, poor is the sub-grade.

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