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Fabtech Australia replaces huge anaerobic lagoon geosynthetic cover
April 7th, 2021
Goulburn Valley Water in Australia has undertaken upgrade work to the 266-million-gallon (50-megaliter) High Rate Anaerobic Lagoon (HRAL) located at their Daldy Road, Shepparton, Victoria, waste management facility. The lagoon has an area of 538,196 square feet (50,000 m2). The upgrade work includes removing the existing cover, which has reached the end of its service […]
ASCE president issues statement on American Jobs Plan proposal
April 1st, 2021
The American Society of Civil Engineers (ASCE) applauds President Joseph R. Biden’s American Jobs Plan, a truly historic proposal for modernizing and improving the nation’s infrastructure, said Jean-Louis Briaud, Ph.D., P.E., president, ASCE. The society urges Congress and the Biden Administration to now work together to develop a comprehensive, bipartisan infrastructure bill that will set […]
Solmax liners help secure 10-day build of Wuhan hospital
April 1st, 2021
Workers involved in the installation of the Solmax liner for the Huoshenshan Hospital in Wuhan, China. Photograph courtesy of Solmax In late January 2020, just before the Chinese Lunar New Year, the COVID-19 pandemic broke out in large areas of Wuhan, Hubei Province, China. The city went into lockdown on Jan. 23, 2020, with the […]
Three very different uses of geosynthetics
April 1st, 2021
In this April/May issue of Geosynthetics magazine, our feature authors tackle three very different uses of geosynthetics with in-depth examination, testing and even a new design method. In the introduction to their article, “Modular Geosynthetics Construction,” E. Silva, T. D. Stark and Duff Simbeck discuss the benefits of a specific manufacturing process for geomembranes. They […]
A new specification for geotextile grout filled mattresses
April 1st, 2021
By George R. Koerner FIGURE 1 GGFM being filled incrementally. Courtesy of HUESKER Geotextile grout filled mattresses (GGFM), also referred to (in ASTM D18.25/D35.05) as fabric-formed concrete (FFC) or fabric-formed concrete revetments (FFCR), are erosion-resistant concrete linings made from durable, permeable fabric forms that are filled with high-strength grout. GGFMs are generally sloping structures placed […]
Update from IGS-NA
April 1st, 2021
by John Allen The IGS North America (IGS-NA) board is working diligently on diversity within its membership and representatives. The organization is expanding the number of liaisons to the board to include all the major North American technical societies that influence geosynthetics. IGS-NA provides the best vehicle for disseminating research on geosynthetics, as it connects […]
Chair’s corner and GMA happenings
April 1st, 2021
By Bryan Gee What’s in a name? For those of us who work in the geosynthetics industry, this question may be more important than you think. A recent call with a high-level federal policy maker brought this home to me. With no prior knowledge of our industry, this person did not understand what geosynthetic materials […]
Comparative analysis of the flow and filtration capabilities of sediment retention devices—Part 2
April 1st, 2021
By James E. Sprague and C. Joel Sprague Sediment retention devices (SRDs) include silt fences, wattles, filter logs, compost socks and various types of stormwater inlet protectors. They are a widely used best management practice (BMP) to provide sediment filtration from stormwater runoff while allowing water passage. However, SRD performance varies greatly in flow rate […]
Development of a new design method for geosynthetic-reinforced RPEs
April 1st, 2021
By Pietro Rimoldi and Nicola Brusa Rapid and extreme climate change is putting our planet under stress. As a consequence, in mountain and hilly regions, infrastructure and people are more often threatened by quick and unpredictable rockfall events. Falling boulders can have extremely high speeds, exceeding 11 mph (5 m/s) and up to 67 mph […]
Modular geosynthetics construction
April 1st, 2021
By Edward J. Silva, T. D. Stark and Duff Simbeck Modular construction is a process in which a building or other item is constructed primarily off-site; under controlled factory conditions; and using the same design, materials, equipment, testing and construction quality control and assurance (CQC/CQA) techniques as a field-constructed facility—but usually in about one-half the […]