Base course is used in rigid pavements for ___.
A. prevention of slab cracking
B. prevention of subgrade settlement
C. prevention of thermal expansion
D. prevention of pumping
Answer:D
Base course is used in rigid pavements for ___.
A. prevention of slab cracking B. prevention of subgrade settlement C. prevention of thermal expansion D. prevention of pumping
Explanation: In rigid pavement base course is used to