If in a soil, one's thumb can be pressed with pressure, its consistency index is in the range of 50% to 75% and unconfined compressive strength (q_u) of that soil is in range of 50 KN/m²to 100 kN/m². Its consistency is termed as:

Question

Question

This question was previously asked in

PGCIL DT Civil 5 May 2023 Official Paper

Answer 1

Explanation:

Consistency	Description	I_C	Unconfined compressive strength (q_u) (kN/mm²)
Liquid	Liquid	< 0	N.A.
Plastic	Very Soft	0 - 0.25	< 25
	Soft	0.25 - 0.5	25 - 50
	Medium stiff	0.5 - 0.75	50 -100
	Stiff	0.75 -1.00	100 - 200
Semi	Very Stiff or Hard	> 1	200 - 400
Solid	Hard or very hard	> 1	> 400

Additional Information Consistency Index

It is defined as the ratio of difference between the liquid limit and natural water content of the soil to the plasticity index.

\(I_C=\frac {w_L-w}{I_p}\)