Pavement cracking explained

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]

Types of cracking

Some of the most important types of crack are as follows:^[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

Notes and References

1. PhD . The Application of Data Analytics to Asset Management: Deterioration and Climate Change Adaptation in Ontario Roads. Sayed Madeh. Piryonesi. November 2019. University of Toronto. 2022-12-15. 2022-12-04 . https://web.archive.org/web/20221204044547/https://tspace.library.utoronto.ca/bitstream/1807/97601/3/Piryonesi_Sayed_Madeh_%20_201911_PhD_thesis.pdf . live.
2. Web site: Distress Identification Manual for the Long-Term Pavement Performance Program. June 2003. Federal Highway Administration. 2022-12-15. 2022-11-06 . https://web.archive.org/web/20221106184343/https://www.fhwa.dot.gov/publications/research/infrastructure/pavements/ltpp/reports/03031/03031.pdf . live.
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. . 26. 1. 10.1061/(ASCE)IS.1943-555X.0000512. 213782055. American Society of Civil Engineers.
4. Web site: Standard Practice for Roads and Parking Lots Pavement Condition Index Surveys (Designation: D6433-07). 2015. 2022-12-15. ASTM International. Michigan Technological University. 2022-12-15 . https://web.archive.org/web/20221215151239/https://pages.mtu.edu/~balkire/CE5403/ASTMD6433.pdf . live .