Q29
Which index measures the roughness of a joint surface?
A.
Joint Roughness Coefficient (JRC)
AnswerB.
Joint Wall Compressive Strength
C.
GSI
D.
Slake Durability Index
Answer: Option A
Solution
Answer: Option A
Solution:
Joint Roughness Coefficient (JRC) quantifies the irregularity of a joint surface, affecting shear strength of rock joints.