Overlays: A Great Use for Polymer Concrete
Polymer concrete (PC) overlays have been successfully used since the 1970s primarily by transportation agencies on bridges. Polymers used for overlays have seen significant improvements, and the current overlays have proven to be durable, skid resistant, and cost-effective. Over 2400 overlays had been installed by 2009, and overlays are a standard bridge protection system by departments of transportation based on an extensive survey of US and Canadian provinces. Slurry, multiple-layer, and premixed overlays are the most widely used. Epoxies are the most widely used resins. Many states have published specifications on the construction of overlays.
- 1.ACI 548.5R. (1994, January). Guide for polymer concrete overlays. American Concrete Institute, Farmington Hills, MI. Reapproved 1998, 26 pp.Google Scholar
- 2.Sprinkel, M. M. (2003). Twenty-five-year experience with polymer concrete bridge deck overlays. Polymers in concrete: The first thirty years, ACI Special Publication No. 214, pp. 51–62.Google Scholar
- 3.Carter, P. D. (1993). Thin polymer wearing surfaces for preventative maintenance of bridge decks. Polymer concrete, ACI Special Publication No. 137 pp. 29–48.Google Scholar
- 4.Fowler, D. W., & Whitney, D. P. (2011). Long-term performance of polymer concrete for bridge decks (p. 63). Washington, D.C: NCHRP Synthesis 423, National Cooperative Highway Research Program, Transportation Research Board.Google Scholar
- 5.Sprinkel, M. M. (1997). Nineteen year performance of polymer concrete bridge decks. In-place performance of polymer concrete overlays, ACI Special Publication No. 169, pp. 42–74.Google Scholar