New product announcements: 05/06/2009 Pile-Drive Analyzer: New Interface for Simpler Calibration The redesigned SPT Analyzer is designed for monitoring calibrated standard penetration test rigs in deep soil prior to the laying of deep foundations. ASTM and many state transportation department regulations require the periodic calibration of SPT rigs, and the SPT analyzer gives instant feedback on the performance of rigs. This updated model has a simplified interface for easier use, with a bright color touch screen. Battery life has been extended to eight hours of continuous functionality. Pile Dynamics Inc.; 216-831-6131; www.pile.com Insulation Installation: High Output The RotoStorm Insulation Blower is
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.