A French subcontractor is using a patented precast technique to build one of the world's longest precast-concrete arch-tunnel sections at the site of a residential complex along South Korea's new ...

The use of fibre reinforced concrete (FRC) for the production of precast segments in tunnels linings mechanically excavated through tunnel boring machines (TBMs) is one of the most promising ...

Video Network [VIDEO] Watch How 14,260 Concrete Segments were Made for Seattle Tunnel's Outer Wall This video shows how the precast, curved concrete segments that form the outer wall of the SR 99 ...

Cross River Rail spans from Dutton Park to Bowen Hills in Queensland, Australia. Credit: Dushan Hanuska via Flickr. Wagners Precast has commenced the manufacture of 25,000 concrete segments for the ...

What is fibre-reinforced concrete and how can rail engineers benefit from its unique properties? Bernard Berge, product specialist engineer, fibre division for Maccaferri, explains. Major ...

Before you can build a new roadway, you've got to grade the gravel bed that will serve as its foundation to within a one-inch margin of error. But that standard ...

FREDERICKSON, Pierce County — Like the statues of Easter Island, the wall segments of Seattle’s future deep-bore tunnel sit motionless in gray rows, across a vast lot. They seem crude from afar, but ...

Environmental Controls Kroner Environmental Services Inc. Waterproofing WISKO America Inc. The Blue Plains Tunnel, a key element of DC Water’s Clean Rivers Project to bring the District of Columbia ...

The Alaskan Way Viaduct replacement program known as the state Route 99 tunnel is the largest soft-ground bored tunnel in North America. The 2-mile state Route 99 tunnel, with a 57.5-foot excavated ...

Conventional bridge construction involves a time-consuming process associated with traffic delays and risk to public safety. In contrast, prefabricated bridge systems can expedite construction, thus ...

The double-decker highway that will eventually run beneath Seattle will sit inside a concrete tube that is as tall as a five-story building. The rings that comprise that 2-mile-long tube each have 10 ...