CompositesWorld

MAR 2018

CompositesWorld

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MARCH 2018 44 CompositesWorld FOCUS ON DESIGN Composite fendering piles fit the bill Composites replace wood in New Jersey marine fender project. ยป Wood is a great material for many applications, including marine pilings and fenders โ€” after all, the Italian city of Venice is supported on a forest of wooden pilings, some nearly a thousand years old. Yet, there are times when wood can't make the grade. Marine borers, such as Limnoria, are a serious threat. Further, there is a trend among environmental regulators to prohibit the use of creosote, the material used to water-proof wood for use in marine environments. at trend had already moved through New Jersey when work began more than five years ago on the new Manahawkin Bay Bridge span, along- side the existing 50-year old โ€” and structurally deficient โ€” truss span that links mainland New Jersey to popular Long Beach Island. "e State of New Jersey outlawed all creosote-treated wood 10 years ago, the material often used along with concrete for marine pilings," says Erik Grimnes, business development manager at Kenway Composites (Augusta, ME, US). As a result, composites were chosen for the fender system that protects the new bridge's concrete piers. "New Jersey's Department of Transportation had good previous experience with composites, and specified composite pilings in the fender design documents." Such pilings have been a specialty of Augusta- based Harbor Technologies, and remain so under Kenway's ownership, says Kenway president Ian Kopp. Kenway acquired the assets of Harbor Tech- nologies in 2015, and was, in turn, acquired in March 2017 by Creative Pultrusions (Alum Bank, By Sara Black / Senior Editor Showcase for composite marine fender/pile systems The Manahawken Bay Bridge that connects mainland New Jersey to Long Beach Island was recently upgraded to create a second span for better access for residents. The new span, built by WSP USA (New York, NY, US), received a National Recognition Award for exemplary engineering achievement in 2017. The new span's bridge piers are protected by composite fenders. Source | InfrastructureUSA.org

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