Both A and R are true and R is the correct explanation of A
Both A and R are true but R is not the correct explanation of A
A is true but R is false
A is false but R is true
60 m
120 m
180 m
240 m
Zero
300
3000
Unrestricted
Alligator cracking
Mud pumping
Warping cracks
Shrinkage cracks