About the Project

WisDOT’s high-priority roadways require repairs to be completed during off-peak hours with minimal lane closure durations (typically 6 to 8 hours for night-time closures). These short closure times severely limit the ability to use many conventional cementitious repair materials and methods on their concrete pavements. As a result, WisDOT has typically resorted to using asphalt concrete or rapid-setting cementitious materials for repairs of PCC pavements, neither of which has consistently resulted in durable or long-lasting repairs.

WisDOT selected Applied Pavement Technology, Inc. (APTech) to evaluate the laboratory and field performance of selected non-cementitious repair materials they have been using over the last few years and provide guidance on the selection and use of these materials for concrete pavement partial-depth repair applications.

Our work included:

• Conducting field evaluations of  selected non-cementitious repair materials to document prevailing condition of repair materials and surrounding concrete pavement.

• Conducting coring and non-destructive testing  to assess the bond condition between repair material and underlying concrete pavement.

• Conducting laboratory testing to study bond and dimensional stability of repair materials at various temperatures.

• Developing project report to assist WisDOT in improving policy and specifications related to non-cementitious repair materials.

View the project report here.