Filter bags for ditch checks

October 1, 2006  |  Products

From the GMA Techline Subject: Filter bags for ditch checks We are looking for a type of geotextile fabric to specify for filter bags for temporary ditch checks. What we are looking for is a type of geotextile fabric that allows some water flow, probably about the same size opening as an FF-type fab…
Read More
Geotextile specifications

October 1, 2006  |  Products

From the GMA Techline Subject: Definitions I am looking for information on geotextile specifications, specifically permittivity and permeability. Can you point me to a document? (John, New York) Reply: The specification that you want is AASHTO M288 that addresses various highway-related applications…
Read More
First organized lobbying for geosynthetics

October 1, 2006  |  News

GMA members meet with lobbyist partners, congressional reps in D.C. By Andrew Aho For the first time in its short history, the Geosynthetic Materials Association (GMA) has a professional lobbying program. The impetus for the program is a strategic plan written by the GMA Executive Council in 2004 th…
Read More
IGS update: Report from Yokohama/8-ICG

October 1, 2006  |  News

By Elizabeth Peggs The Japan Chapter of the International Geosynthetics Society (IGS) organized the 8th International Conference on Geosynthetics in Yokohama, Japan, Sept. 18-22, 2006, under the auspices of the IGS. The conference and exhibition featured 58 exhibitors and 850 participants from aroun…
Read More
ASTM update: Committee D35 on Geosynthetics

October 1, 2006  |  News

By Elizabeth Peggs ASTM Committee D35 met June 14-16 in Toronto for its 2006 semiannual session. There were many interesting meetings and activities held in Toronto, and there were eight awards given to task group leaders following the completion and acceptance of new standards. One of the clear hig…
Read More
Geocomposite capillary barrier drain (GCBD) for limiting moisture changes in pavements

October 1, 2006  |  Products

Evaluation of a prototype. By Ruth Roberson, John Stormont, and Karen Henry Abstract Excess moisture coupled with inadequate drainage are believed to be the primary causes of roadway distress and failure. Manifestations of moisture-related distresses such as rutting, potholes, longitudinal and shrin…
Read More
Evaluating the cost-effectiveness of four pavement treatments

October 1, 2006  |  Case Studies

Selecting a smart and efficient road-maintenance strategy. By Jamie Swedberg, Ron Bygness, and C. Joel Sprague A study evaluating the cost-effectiveness of using paving fabrics in roadway maintenance projects is getting a new look. The original work was a comprehensive study of pavement repair mater…
Read More
San Diego Bay gets an underwater facelift

October 1, 2006  |  Case Studies

Geotextile cap is a key to this novel seafloor remediation project. By Sarah O’Connor, Michael Whelan and Ron Bygness Overview This project included aquatic remediation of a former shipyard area consisting of approximately 3,500 tons of underwater demolition, 35,000 yds.3 of dredging of contam…
Read More
Floating cover system used for evaporation and algae control at Australian winery pond

October 1, 2006  |  Case Studies

Problem: An Australian vineyard was experiencing significant evaporation loss, as well as algae growth, from an on-site irrigation pond. To address the situation, a floating cover system for the pond was designed and installed at the vineyard in the Barossa wine region northeast of Adelaide in the s…
Read More
IECA director killed in helicopter crash

October 1, 2006  |  News

Carol Forrest, a board director for the International Erosion Control Association, was killed Aug. 13 in a helicopter crash outside of Astoria, Ore. She was preparing to participate in Flight of Discovery, an aerial expedition to study the environmental and cultural changes along the Lewis and Clark…
Read More