Consider the following statements with respect to rigid pavements:
Statement-$1$: Bottom-up cracking (BUC) in rigid pavements is caused at the edge of the slab due to combined effect of single or tandem rear axle load and positive temperature differential.
Statement-$2$: Top-down fatigue cracking (TDC) in rigid pavements is caused due to repeated cycles of axle loads and negative temperature differential.
The CORRECT option is:
- Both statements are TRUE.
- Statement-$1$ is TRUE, but Statement-$2$ is FALSE.
- Statement-$1$ is FALSE, but Statement-$2$ is TRUE.
- Both statements are FALSE.
