Stripping of Hot-Mix Asphalt Pavements Under Chip Seals

Status: Complete
Report Date: 04/04/2013

Summary:

Researchers conducted a survey, tested field samples in the laboratory and reviewed construction methods to determine why hot-mix asphalt pavement stripping occurs in some Minnesota streets after placement of asphalt chip seal, and to determine methods for preventing and remedying stripping. Results suggest that stripping is caused by variability in density due to inadequate compaction, and it can be prevented by using a nuclear density gauge to qualify candidates for chip seals and by taking random core samples from pavements during rolling.

Final Deliverables:

Report #2013-08
Research Summary