FELIX Composite-materials makers have announced a pledge to fight a pending designation of styrene as a health hazard by the U.S. Dept. of Health and Human Services. Photo: Courtesy ACMA/Philippe Nobile On the expo floor in Ft. Lauderdale at the American Composites Manufacturers Association annual meeting, members of the fast-growing $17.7-billion-a-year industry talk business. Speaking at the American Composites Manufacturers Association 2011 exhibition and convention on Feb. 2-4 in Fort Lauderdale, Fla., the firms vowed to stage an aggressive congressional lobbying effort against the designation of styrene as a “reasonably anticipated” carcinogen. ACMA President Monty Felix, CEO of Alaglas Swimming
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.