Story excerpt provided by PlasticsNews.
Written by Catherine Kavanaugh.
When the district Department of Transportation (DDOT) in Washington, D.C., needed to replace three aging bridges over the Chesapeake & Ohio Canal in Georgetown, plastic crossed the minds of engineers facing a problem. The 110-year-old bridge over 29th Street had to have a thin deck, but be strong enough to carry 4,000 vehicles, including some semi-trucks, over the waterway that opened in 1831 to get coal, lumber and food crops to market.
The solution: Replace the concrete slab and its encased steel I-beams with a five-inch thick, fiber-reinforced polymer (FRP) deck.
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Originally Published Wednesday, March 26, 2014.