The subgrade soil properties of sample are as follows:
Soil portion passing through 0.075 mm sieve = 50%
Liquid limit = 40%
Plasticity index = 20%
The group index of the soil is1
zero
2
4
3
6.5
4
8
5
Question Not Attempted
The subgrade soil properties of sample are as follows:
Soil portion passing through 0.075 mm sieve = 50%
Liquid limit = 40%
Plasticity index = 20%
The group index of the soil is