The Geosynthetic Materials Association (GMA) offers the GMA Techline, a resource for technical questions about geosynthetics. E-mail: firstname.lastname@example.org for fast, free, direct answers to your technical questions.
GMA serves as the central resource for information regarding geosynthetics and provides a forum for consistent and accurate information to increase the acceptance, and to promote the correct use, of geosynthetics.
Browse the entries below list to find past answers highlighted in Geosynthetics magazine.
Finding information about 9090 testing on liners.
Restrictions to use of construction equipment over geosynthetics.
AOS is specified by the maximum value and picking lower AOS sieves.
Potential effects of freezing conditions on interface shear strength.
Comments on how the ISO results should be interpreted for comparison with ASTM.
Geomembrane UV resistance over time and geotextile covering.
Another question regarding geo properties and their specifications.
Searching for products on our website.
Comparing commercial and consumer available geogrids.
Data on influence of geosynthetics on the reduction of carbon footprint.
Old and new puncture resistance calculations.
Data on HDPE liner failure assessments associated with geosynthetic covers.
Monitoring GCL moisture change without recoverable sensors.
Replacement for the no longer recognized Mullen Burst Test.
What are the test methods and specifications for silt fence?
The Purpose of Drainage for Green Roofs
The Purpose of Filter for Green Roofs
What are Geocomposite Drains?
Source: “How to Design Green Roofs & Landscapes” presented at the 2009 IFAI Expo, Sept. 22, 2009, in San Diego, hosted by the Geosynthetic Materials Association (GMA)