Pavement cracking

Pavement crack refers to a variety of types of pavement distresses that occur on the surface of pavements. Different types of pavements develop different cracks. Type of cracking is also correlated with the type of climate and traffic.[1][2] Sometimes the cracks are aggregated using an index such as Crack index, and sometimes they are merged with other distresses and are reported using Pavement Condition Index.[3]

Cracking along the road axis possibly due to poor construction and formation of a cold joint
Alligator cracking

Types of cracking

Some of the most important types of crack are as follows:[1][4]

  • Crocodile cracking, also known as alligator cracking and fatigue cracking
  • Block cracking (caused by shrinkage of asphalt)
  • Longitudinal cracking—wheel path
  • Longitudinal cracking—non-wheel path
  • Transverse cracking
  • Reflection cracking at joints
  • Edge cracking (caused because of poor drainage or lack of support at the edge)
  • Slippage cracking

References
  1. Piryonesi, Sayed Madeh (November 2019). The Application of Data Analytics to Asset Management: Deterioration and Climate Change Adaptation in Ontario Roads (PDF) (PhD). University of Toronto. Archived (PDF) from the original on December 4, 2022. Retrieved December 15, 2022.
  2. "Distress Identification Manual for the Long-Term Pavement Performance Program" (PDF). Federal Highway Administration. June 2003. Archived (PDF) from the original on November 6, 2022. Retrieved December 15, 2022.
  3. Piryonesi, S. Madeh; El-Diraby, Tamer E. (March 2020) [Published online: December 21, 2019]. "Data Analytics in Asset Management: Cost-Effective Prediction of the Pavement Condition Index". Journal of Infrastructure Systems. American Society of Civil Engineers. 26 (1). doi:10.1061/(ASCE)IS.1943-555X.0000512. S2CID 213782055.
  4. "Standard Practice for Roads and Parking Lots Pavement Condition Index Surveys (Designation: D6433-07)" (PDF). ASTM International. 2015. Archived (PDF) from the original on December 15, 2022. Retrieved December 15, 2022 – via Michigan Technological University.
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