ASTM D4595, D6637 Wide Width Tensile Properties of Geosynthetics 

This video describes ASTM D4595 “Standard Test Method for Tensile Properties of Geotextiles by the Wide-Width Strip Method” and ASTM D6637 “Standard Test Method for Determining Tensile Properties of Geogrids by the Single or Multi-Rib Tensile Method.” These test methods attempt to model specific field conditions of normal pressure, gradient and boundary condition such as site-specific soils. The goal of these tests are to determine Tensile strength, elongation and modulus of various geosynthetic. These methods were originally developed by the Geosynthetic Research Institute (GRI) under the auspices of the Geosynthetic Institute (GSI), with the cooperation of the member organizations and later adopted by both ASTM International and ISO.
GSI constitutes a diverse assembly of stakeholders who actively engage in the manufacturing, design and use of geosynthetics as engineering materials. GSI’s mission is to develop and transfer knowledge, assess and critique geosynthetics, and provide service to its member organizations. One of the major objectives of the institute is to develop test methods, guides, practices and specifications of geosynthetics used in Civil Engineering applications all over the world.
For further information, please consult our website: www.geosynthetic-institute.org.