Protecting geomembranes from animal damage

June 1, 2017

Resisting animal and insect attacks on geomembranes is an interesting problem. Geomembrane installers and manufacturers have had numerous geomembranes damaged by bears, deer, coyotes, birds, beavers, and ground squirrels (Figures 1 and 2). In most cases, the damage is incidental to something else the animal is seeking. Deer damage the liner with their hooves trying …

Long-term durability of geomembrane material and seams

April 1, 2017

Introduction The Fabricated Geomembrane Institute (FGI), formerly the PVC Geomembrane Institute, in collaboration with the Minnesota Department of Natural Resources (Minn. DNR), has been conducting a study assessing the long-term durability of PVC geomembranes. Samples of three different 30-mil PVC geomembranes were placed at the bottom of a settling basin near the northern Minnesota town …

FGI initiates summer internship program

September 20, 2016

By Timothy D. Stark, University of Illinois at Urbana-Champaign, and Jennifer Miller, University of Illinois at Urbana-Champaign  The Fabricated Geomembrane Institute (FGI), based at the University of Illinois/Urbana-Champaign (UIUC), has concluded its first student internship program. The main objectives of the program are to introduce future civil engineers to the field of geosynthetics and to provide …

Minnesota geomembrane durability study

August 1, 2016

More than 20 years ago, the founders of the PVC Geomembrane Institute (PGI) and the succeeding entity, the Fabricated Geomembrane Institute (FGI) set out to test materials that were in actual field use. They wanted to exhume numerous samples for testing on a periodic basis without ruining the integrity of the installed primary liner system. …