Products 09/08/2010 Material Removal: New Accessories Fit Sawzall and Hackzall Recip Saws Milwaukee Electric Tool has introduced two scraper blades and a grout-removal tool that are compatible with all Sawzall and Hackzall Recip Saws. The scraper blades are available in both 11/2-in. and 3-in. sizes and can be used for removing linoleum flooring, adhesives, paint, drywall mud, rust and other materials. The carbide-grit grout-removal tool can remove grout from 1/8-in. up to 3/4-in. in width. The scraper blades and the grout-removal tool all feature a corrosion-resistant coating. Milwaukee Electric Tool Corp.; 800-729-3878; www.milwaukeetool.com Concrete Floor Grinder: Polishing Power The UltraGrind
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.