Page 23 - UNIT 6 - HIGHWAY MAINTENANCE

Civil Engineering Department | DCC3113 : Highway & Traffic Engineering

Crocodile cracks

 This is a common type of failure of flexible
pavements. This is also known as fatigue failure.

 Crocodile cracks are interconnected or interlaced
cracks which form a network of multi-sided blocks
resembling the skin of crocodile.
 Block size can range from 100mm to 300mm.

 Causes
 Excessive loading

 Weak surface, base, or subgrade
 Thin surface or base

 Poor drainage
 Cures

 Remove and replace
 Mill and overlay

Prepared by : SITI ZURAIFA BINTI MD SAH, zuraifa@pmu.edu.my