Special Committee on Research and Innovation

AASHTO Liaison
Glenn Page, Associate Program Director, Project Delivery

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Thin Polymer Overlay Survey


Montana DOT's Bridge Bureau would love for someone from each state DOT's bridge area to answer the following questions.

Bridge deck polymer overlays are seeing increased use in Montana. One of the primary means of evaluating decks and scoping rehabilitation work is through the use of chain drag mapping. Chain dragging is simple, inexpensive, and easily conducted, and we have a high level of confidence in the results. However, once a polymer overlay is applied, a chain drag is no longer effective for determining deck delaminations.

1. Does your state inspect bridge decks with a polymer overlay applied?

2. Do you have an effective method for evaluating delaminations on decks with a polymer overlay?

3. What methods have you found to be successful for determining delaminations on decks with a polymer overlay?

4. Are you using those methods to scope deck rehabilitation work?

Sue Sillick
Research Programs Manager
2701 Prospect Avenue
Helena, Montana 59620
United States
Phone: United States
E-Mail Address: ssillick@mt.gov