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Wednesday, May 9, 2018 - 17:30

Research shows that pothole prevention requires repairing pavement cracks as they develop. Repairing potholes effectively is more difficult in winter than in summer. Durable winter repairs require expensive patching materials and expensive, on-site heating technologies. Taconite mixes and mixtures modified with graphite nanoplatelets show promise for long-lasting repair, even in winter. MnDOT must encourage local agencies to carefully track pothole repair costs to enable effective pothole life-cycle cost comparisons in the future.

This Local Road Research Board (LRRB) report is available online from Minnesota Department of Transportation at: https://www.dot.state.mn.us/research/reports/2018/201814.pdf