Rutting in flexible pavements is a permanent deformation primarily caused by:
Choose the correct answer
Fatigue cracking of bituminous layers
Plastic deformation of subgrade or bituminous layers under repeated heavy axle loads in hot weather
Reflection cracking from base layer
Frost heave
Correct Answer
B. Plastic deformation of subgrade or bituminous layers under repeated heavy axle loads in hot weather
AI Detailed Explanation & IS Code Reference
Unlock the reasoning, formula path and code-linked notes inside your student dashboard.
Rutting = longitudinal groove in wheel path due to accumulation of plastic deformation in any/all pavement layers (mainly bituminous mix and subgrade). Causes: overloading, high temperature (soft bitumen), insufficient pavement thickness, poor mix design.
ScoreCardAI links this solution with subject, topic and difficulty signals so your scorecard can identify weak areas after a full mock test.
Practice more Civil Engineering questions
This MCQ belongs to AE Level Premium Test Series. Full tests include timed attempts, rank comparison and subject-wise analysis.