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Top tips for operating a specialty fabrics business during a pandemic
April 1st, 2020
IFAI Division Webinars this week are bringing together diverse members of the specialty fabrics industry to discuss how they are navigating the COVID-19 crisis. For companies that are operational—that is, they have either been deemed essential businesses or they are not currently under a “shelter in place” order—worker health and safety is a major concern. […]
Geosynthetics Conference 2021 call for proposals and abstracts now open
April 1st, 2020
Proposals and abstracts are now being accepted for the Geosynthetics Conference 2021. Submissions can include short course, workshop, training lecture, technical session and panel discussion proposals, as well as abstract submissions for technical papers of all types. Submissions will be accepted through May 25, 2020. The Geosynthetics Conference 2021 takes place Feb. 21–24, 2021, in Kansas City, […]
GMA history and happenings
April 1st, 2020
By Andrew Aho Throughout the history of geosynthetics, leaders have emerged who have significantly affected the growth of the industry in North America. During the Geosynthetics CASE STUDIES Conference in March in North Charleston, S.C., a few of the Geosynthetic Materials Association (GMA) leaders had an opportunity to address the gathering and recall their personal […]
Geosynthetic strip MSE wall at Point Defiance Marina
April 1st, 2020
By Paul C. Frankenberger and Robert Lozano This article will focus on a geosynthetic strip mechanically stabilized earth (MSE) wall case study using discrete geosynthetic strips with large precast facing panels (Figure 1), an innovation of the original MSE invention. The system is the Highway Innovative Technology Evaluation Center/National Transportation Product Evaluation Program reviewed GeoMega […]
How does your geosynthetic react to changes in temperature?
April 1st, 2020
An essential aspect of geosynthetics is that they function well over a large range of temperatures in either buried or exposed environments. There has been much work in this area; see Giroud and Morel (1992), Koerner and Koerner (1995 and 2006), Lord, Soong and Koerner (1995), and Tsuboi, Imaizumi and Miyaji (1998). Most of the […]
The GMA Techline
April 1st, 2020
Moderated by George R. Koerner and Y. “Grace” Hsuan Welding Rod Q: This question is in regard to the welding rod intended for welding of geomembranes (both high-density polyethylene [HDPE] and linear low-density polyethylene [LLDPE]). Are there any GRI GM13- or GM17-based requirements for welding rods or are there any white papers or specifications? I […]
Construction water flow dynamics of the leak detection layer
April 1st, 2020
By Abigail Gilson-Beck and Larry Shilling The double-lined containment facility featuring a leak detection system (LDS) is the most accurate way of assessing leakage through a primary geomembrane (Bonaparte and Gross 1992). This type of system also represents the gold standard for environmental protection, since leakage through the primary liner is collected and removed so […]
CSPE performance and history in long-term potable water storage applications
April 1st, 2020
By Brian Fraser, Steven Roades, Mike Neal and Alex Gersch Chlorosulfonated polyethylene (CSPE) is a synthetic rubber-based material manufactured by a calendaring process into multiple layers and combines with a polyester reinforcement fabric for additional strength. Hypalon is a DuPont trademark for CSPE synthetic rubber (CSM) noted for its resistance to chemicals, temperature extremes and […]
International Achievement Awards
April 1st, 2020
Recognizing design excellence in geosynthetics The International Achievement Awards, sponsored by the Industrial Fabrics Association International (IFAI), recognize innovation, technical skill and design excellence in geosynthetic applications. The awards are an annual competition promoting awareness of the specialty fabrics used in thousands of products and applications ranging in size and shape. For more than 70 […]
Letter from the IGS-NA chair
April 1st, 2020
The North American Chapter of the International Geosynthetics Society (IGS-NA) had a productive 2019, and we are looking forward to several exciting activities in 2020. We held the third installment of Educate the Educators in December 2019 in La Jolla, Calif. In addition, IGS-NA was a sponsoring organization of the Geosynthetics Conference 2020: CASE STUDIES, […]