Why do chip seals fail?

cracked pavement

Oil and stone, more properly known as a chip seal, fail for a variety of reasons but, more often than not fail when the stone does not properly adhere to the pavement. This stone loss is most commonly a result of a misstep in the initial installation.

Installation factors that can attribute to stone loss include:

Aside from timing and application rates, there are five steps that should be taken during the construction process:

References

Pavement Cracking: A Failure Indicator of Your Roads
CLRP Quick Answer

Cover of the Pavement Maintenance workshop manual

Pavement Maintenance
CLRP Workshop Manual

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This work by the Cornell Local Roads Program (CLRP) is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported License.