02/10/2026
Asphalt 101: Fatigue Cracking đŁď¸
Ever notice cracks in asphalt that look like alligator skin? đ Thatâs called fatigue cracking (or alligator cracking), and itâs a sign the pavement is under stress.
This type of cracking happens when asphalt canât keep up with repeated traffic loads. It usually starts from the bottom of the pavement and works its way up, often caused by thin asphalt, weak support underneath, or poor drainage. Catching it early is keyârepairs can range from simple surface treatments to full-depth reconstruction, depending on the severity.
Common Causes Include:
- Repeated traffic loading: Heavy vehicles put stress on the pavement over time.
- Weak foundation or subgrade: The layers beneath the asphalt arenât providing enough support.
- Thin pavement design: Asphalt that isnât thick enough for the traffic it carries.
- Poor drainage: Water weakens the pavement structure below.
- Aging asphalt: As asphalt gets older, it becomes brittle and less flexible.
Understanding the cause helps determine the right fixâand can save time and money down the road! đ§