ABSTRACT

The construction, performance and use of polymer concrete overlays on bridge decks over the past 25 years are summarized. Polymer concrete overlays that have an established history of use and acceptance include multiple-layer epoxy, multiple-layer epoxy urethane, methacrylate slurry and premixed polyester styrene. Evaluations indicate that these overlays can provide skid resistance and protection against intrusion by chloride ions for 25 years and are an economical technique for extending the life of hydraulic cement concrete decks. Polymer concrete overlays have recently been used as the wearing surface on fiber reinforced plastic bridge decks and performance similar to that on concrete decks is anticipated.