Products 06/09/2010 Pneumatic Saw: Cuts Underground Pipe From a Single Side The PowerGrit Air Chain Saw is able to cut underground pipe up to 20-in. from a single side, requiring less room to make the cut than regualr cut-off saws. Diamond elements in the chain grind rather than tear the pipe material, reducing vibration and kickback. Unlike gas-powered saws, the pneumatic saw has no exhaust and needs less maintenance. The saw requires an air flow of 124 cfm at 90 psi. CS Unitec Inc.; 800-700-5919; www.csunitec.com Soil Stabilizer: Many Improvements The 700-hp Roadtec SX-7 soil stabilizer and reclaimer has received
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.