Structural failures considered in the mechanistic method of bituminous pavement design are

Q. Structural failures considered in the mechanistic method of bituminous pavement design are

(A) Fatigue and Rutting

(B) Fatigue and Shear

(C) Rutting and Shear

(D) Shear and Slippage

Ans: Fatigue and Rutting

Solution:

The correct answer is:

In the mechanistic method of bituminous pavement design, the structural failures that are considered are primarily fatigue and rutting. Fatigue failure occurs due to repeated loading and unloading of the pavement surface, which can lead to cracks and other distresses. Rutting, on the other hand, refers to the permanent deformation or depression in the pavement caused by traffic loads over time. These two types of failures are crucial considerations in designing a durable and resilient bituminous pavement.