Geotechnical engineering conference offers special session on geosynthetics
October 9th, 2014
 Zornberg to deliver Mercer Lecture 15ARC-the 15th Asian Regional Conference presented by the International Society of Soil Mechanics and Geotechnical Engineering (ISSMGE)-will be held under the auspices of the Japanese Geotechnical Society (JGS) at the Fukuoka International Congress Center in Fukuoka, Kyushu, Japan Nov. 9-13, 2015. The subtitle of this conference is “New Innovations […]
Tensar takes legal action in Canada vs. Enviro-Pro Geosynthetics
October 7th, 2014
 Lawsuit cites infringement of geogrid patent Atlanta-based Tensar International has filed a patent infringement lawsuit in Canada against Enviro-Pro Geosynthetics Ltd., a reseller of geogrid manufactured in China by Taian Modern Plastic Co. Ltd. (TMP), according to a Tensar press release issued Oct. 7. The Canada lawsuit is pending in Federal Court in Ottawa, […]
Specifier’s Guide 2015-Don’t be left out
October 2nd, 2014
 Company directory listings, product data spec charts The annual Specifier’s Guide by Geosynthetics magazine is going to press in a few weeks. Do not be left out of the 2015 edition. The Specifier’s Guide is the most trusted industry resource, used throughout the year by more than 35,000 industry professionals in 55 countries for […]
Water, water, water
October 1st, 2014
By Ron Bygness Eight years ago, I interviewed Ernie English. At that time, Ernie was with GSE and was the chairman of the Geosynthetic Materials Association’s Executive Council. I asked him several questions about the state of the geosynthetics industry, about market opportunities, about some historical perspectives. Then I asked Ernie about the future for […]
Fish pond lining
October 1st, 2014
Questions and answers from the GMA Techline Fish pond lining We have a project fixing an HDPE liner for a fish pond. Should we use HDPE liner 0.50mm? What would be the suitable covering sheet to protect the pond from UV? (Mustafa | Saudi Arabia) Mustafa, You ask good questions but ones that really require […]
Geomembrane patching
October 1st, 2014
Geomembrane patching? Landfill cooling? Puncture protection? Geomembrane patching? Landfill cooling? Puncture protection? Questions and answers from the GMA Techline Geomembrane patching Would it be acceptable to repair an existing 30-mil HDPE geomembrane liner system with 60-mil HDPE geomembrane patches? Is there any research documenting this application? Are there any additional welding preparation procedures required for […]
Fusion welds
October 1st, 2014
Geomembrane patching? Landfill cooling? Puncture protection? Geomembrane patching? Landfill cooling? Puncture protection? Questions and answers from the GMA Techline Double-track fusion welds Can you offer any guidance on the minimum allowable ambient temperature to perform double-track fusion welds of HDPE and LLDPE geomembranes? Thanks. (Noah | North Carolina) Noah, (1) Regarding the seaming window for […]
Geotextile filter
October 1st, 2014
Geomembrane patching? Landfill cooling? Puncture protection? Geomembrane patching? Landfill cooling? Puncture protection? Questions and answers from the GMA Techline Geotextile filter Are there any papers done on the use of a geotextile filter layer below a GCL or CCL? Your assistance in this regard will be much appreciated. (Tian | South Africa) Dear Tian, Thank […]
Bentonite compatibility
October 1st, 2014
Geomembrane patching? Landfill cooling? Puncture protection? Geomembrane patching? Landfill cooling? Puncture protection? Questions and answers from the GMA Techline Bentonite compatibility with propylene glycol Are there any issues regarding bentonite GCL compatibility with propylene glycol? Any information you could share would be helpful. Thanks. (Scott | Massachusetts) Scott, There is no issue with respect to […]
Fabric-formed shells
October 1st, 2014
Geomembrane patching? Landfill cooling? Puncture protection? Geomembrane patching? Landfill cooling? Puncture protection? Questions and answers from the GMA Techline Building fabric-formed concrete thin shells Any suggestions on the type of geogrid or geoweb fabric I can use for shaping and reinforcing thin-shell concrete domes? (Ted | USA) Ted, You ask a great question and one […]