New resin for geomembranes

August 1, 2007

Dow Chemical Co. has announced the commercial availability of a new HDPE (high-density polyethylene) resin for use in geomembranes, the synthetic materials commonly used as impermeable liners in geotechnical engineering applications for environmental protection, water collection and preservation, and waterproofing. The new product, HDPE 50045E, underscores advances in polyethylene material science that have made it …

Call 811 before you start digging

Planning a home improvement job? Planting a tree? Building a retaining wall? Wait! Here’s what you need to know first: Whether you are planning to do it yourself or hire a professional, smart digging means calling 811 before each job. Projects that require digging often involve risky assumptions about utility lines. But every digging job …

Waterproofing job for Dubai tunnel

The $3.3 million(U.S.) Jumeirah Vehicular Tunnel waterproofing project was completed in April. The 1,400m tunnel is the only link for vehicles between Jumeirah Palm Island and the crescent areas surrounding it at the spectacular palm island complexin Dubai. The waterproofing system, designed and executed by BMC Gulf Contracting LLC, involved the installation, welding, and testing …

Zenker appointed technical director at Fleissner

Dieter Zenker has assumed the position of technical director at Fleissner GmbH. In his new function, Dr. Zenker oversees the engineering and production divisions as well as product development. Fleissner GmbH, manufacturer of a multitude of equipment for specialty fabrics and fabric applications, is based in Egelsbach, Germany.

GZA opens new office

GZA GeoEnvironmental Inc., an environmental and geotechnical consulting firm based in Massachusetts, has named Gary R. McAllister, P.E., head of its new office in Portsmouth, N.H. McAllister is a senior project manager for GZA and is a registered professional engineer with more than 17 years of experience in engineering, field inspection, project management, logistics, and …

Armtec CFO resigns

John Slattery, senior vice president-finance and chief financial officer at Guelph, Ont.-based Armtec, has resigned to pursue a new opportunity, according to a press release from the company. Carrie Boutcher, vice president-finance, was appointed interim CFO. Armtec is a manufacturer and marketer of drainage products and engineered solutions for infrastructure applications, and is also a …

Synthetically reinforced natural turf installed at Lambeau Field

June 1, 2007

The playing surface at Lambeau Field—home of the National Football League’s Green Bay Packers—has undergone a facelift this year. The $3 million makeover promises a new football field with the latest technology in natural turf plus the addition of synthetic reinforcement. DD GrassMaster, a natural grass surface reinforced with man-made fibers developed by Desso DLW …

New books for the geosynthetics industry

Geosynthetics in Civil Engineering A new book, Geosynthetics in Civil Engineering, includes contributions from a cavalcade of international academics and professional engineers. Part 1 of the book covers the fundamentals of geosynthetics. Chapters include discussion of the design and durability of geosynthetics together with their material properties and international standards governing their use. Part 2 …

ASTM Vol. 04.13 Geosynthetics

Published: May, 2007 Volume 04.13 focuses on the mechanical, endurance, permeability, and filtration properties of geosynthetics. Applications such as roadway stabilization and repair, erosion control, geomembranes, soil drainage, and reinforcement, as well as hydraulic barriers composed primarily of man-made polymer sheets or spray applied systems are included. Also featured are standards on geosynthetic clay liners. …

Geotube technology project in India

A district irrigation department in West Bengal, India has initiated a geotextile tube project on an experimental basis in an effort to check coastline erosion. A 1-km test section on the Bay of Bengal coastline from Shankarpur to Jalda in the district of East Midnapore was installed this spring. The project, implemented to stop the …