Image courtesy PCA Concrete and asphalt marketers have been fighting for more highway share, but ready-mix campaign excludes main-line paving. Here, a recent ad from PCA. Photo by Tudor Van Hampton for ENR NAPA displayed asphalt bumper stickers at CONEXPO-CON/AGG 2014. Related Links: Boosting Fuel Economy Where The Rubber Meets the Road Concrete Goes To College College basketball fans are not likely to see a "Got Concrete?" ad campaign appear on television during March Madness, but that could come if the National Ready Mixed Concrete Association is successful in gaining support for its pending checkoff campaign. The effort ups the
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.