My journey along the ‘Geosynthetics Superhighway’

June 1, 2022  |  Editorial

I've been on a fascinating ride over the last five years during which I have edited and written for Geosynthetics magazine. I began work as the editor of the magazine on March 1, 2017, and less than two weeks later, I traveled to my first geosynthetics-related conference, Geotechnical Frontiers 2017…
Landfill trenches with geocomposites

June 1, 2022  |  Q&A: GMA Techline

Q: I am wondering if you know of or can point me in the right direction in regard to determining viability of leachate disposal via spraying back onto the active face of a landfill. I have a landfill that has a few issues, and while, from a practical sense, we have had some success with this approac…
Adding graphene to geosynthetics

June 1, 2022  |  Q&A: GMA Techline

Q: I have some commercial application questions in the field of geosynthetics. We manufacture graphene powders in the most sustainable way, and it allows us to supply graphene to manufacturers much more economically. As you may have heard, graphene has wonderful material properties atomically to off…
ASTM formed dimple board standard

June 1, 2022  |  Q&A: GMA Techline

Q: Which American Society for Testing and Materials (ASTM) test would you recommend for tear evaluation of formed dimple board? I am aware of D1004, but can this test be performed on formed dimple board?
Stacking GCL rolls

June 1, 2022  |  Q&A: GMA Techline

Q: I have a question regarding the storage and handling of geosynthetic clay liner (GCL) rolls. The manufacturer allows stacking up to five GCL rolls. Is this okay?
Geotextile grab test methods

June 1, 2022  |  Q&A: GMA Techline

Q: I know the American Society for Testing and Materials (ASTM) approves several grips (the requirement is they be “flat”) to perform ASTM D4632 and ASTM D5034. We use a hard, smooth rubber surface for the woven geotextile and a slightly serrated surface for the nonwoven geotextile. One of our c…
Pipe penetrations through geomembranes

June 1, 2022  |  Q&A: GMA Techline

Q: Is there a recommended detail that you can provide or point me toward for pipe penetrations through geomembrane single and double liners?
Geotextile impact testing

June 1, 2022  |  Q&A: GMA Techline

Q: We would like to carry out an impact test on geotextiles as described in Koerner (2012), Chapter 2.3.3 Mechanical Properties-Impact Test and Chapter 2.5.5 Impact (Tear) Resistance. I came across the Geosynthetic Research Institute (GRI) GS2 Test Method for Rupture Strength of Geosynthetics by Pen…
Multi-linear drainage geocomposites for railways

June 1, 2022  |  Features

In civil engineering, drainage systems are traditionally made with granular material layers and perforated collector pipes. The use of drainage geocomposites became more common 30 years ago with the development of products that met the specific requirements of each application. Moreover, the geocomp…
Aboveground storage tank liners for energy applications

June 1, 2022  |  Features

Over the past 20 years, hydraulic fracking rules and regulations have become increasingly stringent, and oil and gas (O&G) producers have become progressively more concerned with environmental stewardship. Quality, factory-fabricated geomembrane liners for the aboveground storage tank (AST) mark…