GMA comments on EPA process for Superfund sites

April 1, 2011  |  News

By Boyd Ramsey and Andrew Aho The Geosynthetic Materials Association (GMA) participated in a public listening session held by the U.S. Environmental Protection Agency (EPA) March 30, 2011. The session was held in Albuquerque, N.M., and addressed the topic of vapor migration as a component of the sel…
The raw material?

April 1, 2011  |  News

Editor’s Note: The following question is in response to “Geotextile tubes provide hurricane protection for Cancún beach,” a short article that appeared in a sister publication of Geosynthetics—Specialty Fabrics Review magazine. A reader asked about the raw material for…
Interface friction info

April 1, 2011  |  News

Question From: Scott Posted: March 8 | 9:16 am CST Is there any interface friction information available between PVC to RCSPE layers? Response Dr. Robert Koerner, GMA Techline Scott, We have a rather large database of interface friction values (as do others) but not for that specific combination of …
Protecting pipelines

April 1, 2011  |  News

Editor’s Note: The comment below in response to the February–March 2010 Geosynthetics article “Geotextiles are protecting pipeline.” Comment From: Gholamhosein Posted: Feb 22, 2011 | 5:22 am CST Re: Protecting pipelines My research results prove that the buried pipelines can be p…
Zero cohesion

April 1, 2011  |  News

Editor’s Note: The question below was submitted regarding the Richard Thiel article “Cohesion (or adhesion) and friction angle in direct shear tests,” from the April 2009 Geosynthetics. Comment From: Leo Posted: Oct. 3, 2010 | 11:12 p.m. What happens if you force the line of best f…
Ongoing geocell discussion

April 1, 2011  |  News

Editor’s Note: The following comments were submitted regarding the GMA Techline article “Geocell application,” from the April 2010 Geosynthetics. Comment From: Suprio Re: Geocell on soft subgrade In case if a layer of geocell is placed on a soft subgrade of say CBR value 1, then wh…
New officers named for geosynthetics organizations

April 1, 2011  |  News

NAGS, FGI, IAGI make announcements at Geo-Frontiers North American Geosynthetics Society (NAGS) The following were announced as the new Board of Directors for NAGS: President–Dean Sandri; President-elect–Bob Mackey; Treasurer–Corey Bobba; Vice Presidents–Marolo Alfaro, Jay Mc…
Update on GSI activities

April 1, 2011  |  News

By Bob and George Koerner There are several activities of GSI that we believe have widespread interest to the geosynthetics community beyond our regular direct contact with its members and affiliated members. They are briefly as follows: Laboratory Test Method Accreditation The Geosynthetic Accredit…
IFAI Expo Asia 2011 in Singapore a rousing success

March 31, 2011  |  News

IFAI Expo Asia 2011 in Singapore ended Friday, March 25, and based on an initial poll of exhibitors this specialty fabrics trade show premiere was quite a success. Many of the nine technical symposiums held throughout the four-day event had capacity attendance. One of the seminars in particular, the…
2011 NAGS student paper competition winners

March 25, 2011  |  News

The North American Geosynthetics Society (NAGS) sponsored its biennial conference student paper competition during Geo-Frontiers 2011 in Dallas. The competiton consisted of two parts. The student authors were judged on their written paper and also their oral presentation during technical sessions at…