On the estimation of live loads in geosynthetic design

November 15, 2012

By Bob Koerner In formulating a factor-of-safety value for a specific geosynthetic application, a design engineer is essentially calculating a ratio of resisting forces-to-driving forces. This contrast is even further recognized when using load and resistance factor design (LRFD) which is apparently in our not-to-distant future. Regarding the resisting forces, they are primarily the soil’s …

A teaching guide to accompany an inexpensive geosynthetics textbook

October 1, 2012

By Robert Koerner Within my faculty career, which began in 1968, the teaching of technical subjects such as geotechnical and geosynthetics engineering has gone from (a) writing on a chalkboard, to (b) prepared overhead transparencies, to (c) prepared 35mm slides, and now to (d) prepared computer-based PowerPoint® presentations. The following table attempts to capture the …

GSI fellowships announced

The Geosynthetic Institute has announced the students who are recipients of the 2012–2013 academic year GSI Fellowship Awards. To be eligible, students must: focus on a geosynthetic topic. have a passed the candidacy examination leading to a doctoral degree. be recommended by his/her major advisor. The GSI Board of Directors made the selections from a …

GMA is the industry voice

The Geosynthetic Materials Association represents at agencies and non-governmental organizations By Andrew Aho Agencies and non-governmental organizations (NGOs) rely on the Geosynthetic Materials Association (GMA) to be the prime resource for consistent and accurate information on the correct use of geosynthetics. These groups often reach out to GMA expert advice regarding geosynthetic applications, specifications, and …

Kingston offers geosynthetic language in transportation bill

August 1, 2012

By Andrew Aho U.S. Rep. Jack Kingston (R–Ga.) and his staff worked with GMA to craft language for the transportation appropriation bill that highlights the cost-saving and environmental benefits of geosynthetic materials as well as the upcoming Government Accountability Office (GAO) study on innovative material. The language in the bill reads: Geosynthetics – The Committee …

Lobby Day continues to pay dividends for GMA and its members

By Andrew Aho Lobby Day efforts are producing positive results for GMA and GMA members. GMA members that participate in the GMA lobby days are establishing invaluable relationships with their congressional delegations. These relationships help support key industry legislative initiatives in transportation, waste disposal, and water resources. The Lobby Day visit also provides companies with …

Geosynthetics and shale gas

By Bob and George Koerner At the 2012 edition of the Federation of New York Solid Waste/Recycling Conference and Trade Show at The Sagamore, a session on “Shale Gas Plays” in the Marcellus and Utica formations was held. There were four papers in the session, including ours, which presented the associated geosynthetic opportunities. Arbitrarily placed …

David Gaddy receives GMA scholarship

July 30, 2012

Industrial Fabrics Foundation announces first recipient of annual award funded by the Geosynthetic Materials Association The Industrial Fabrics Foundation (IFF) has announced the recipient of the 2012 Geosynthetic Materials Association Member Scholarship, awarded annually to an outstanding student who is employed by a GMA member company or is related to an employee of a GMA …

GMA Lobby Day 2012

June 1, 2012

By Andrew Aho Twenty companies and organizations participated in GMA’s annual Lobby Day April 16–17. The GMA lobbying team scheduled 25 meetings with congressional offices, including five meetings with U.S. senators, nine meetings with U.S. representatives, and the balance with senior policy and legislative staff members. By all measures, it was our most effective and …

The GMA Techline and its 4th set of 500 Q’s & A’s

By Bob and George Koerner Introduction The Geosynthetic Materials Association’s (GMA) Techline was initiated Sept. 1, 2004, as a free worldwide service to answer questions involving the many aspects of geosynthetic materials. From the outset there were no constraints placed on the questioner or their questions. GMA contracted with the Geosynthetic Institute (GSI) for answers …