ISO 10319 Geosynthetics - Full Width Tensile Test

The ISO 10319 standard published by the International Standards Organization (ISO) defines an index test method for determining the tensile properties of geosynthetics (polymeric, glass and metallic products) using a strip covering the entire width. This test method applies to most geosynthetics, including woven geotextiles, non-woven geotextiles, geocomposites, knitted geotextiles, geonets, geomats, and metallic products. It also applies to geogrids and similar open structure geotextiles, although sample sizes may need to be changed. This test method does not cover polymeric or bituminous geosynthetic barriers, but is applicable to clay geosynthetic barriers.

The ISO 10319 standard describes a tensile test method covering the measurement of load elongation properties and includes procedures for calculating secant stiffness, maximum load per unit width, and strain at maximum load. Individual points on the load-strain curve are also indicated. Included in this standard are procedures for measuring the tensile properties of both conditioned and wet samples.

For the purposes of this standard,

• The expression nominal gauge length refers to the initial distance, normally 60 mm (30 mm on either side of the sample symmetrical centre), the length between two reference points on the sample parallel to the direction of the applied load.
• The expression elongation at preload refers to the measured increase in gauge length corresponding to an applied load of 1 percent of the maximum load.
• Actual gauge length refers to the nominal gauge length in millimeters plus the elongation at preload in millimeters.
• Maximum tensile force refers to the maximum tensile force achieved during a test.
• The expression tensile stress expresses the increase in the actual gauge length of a sample during a test divided by the actual gauge length.
• The expression tensile secant stiffness expresses the ratio of the tensile force per unit width to an associated strain value.
• The expression tensile strength refers to the maximum force per unit width observed during a test in which the specimen is stretched to rupture.
• The expression strain ratio expresses the time from preload to maximum tensile load.

Among the numerous test, measurement, analysis and evaluation studies it provides for businesses in various sectors, our organization also provides tensile testing services covering the entire width for geosynthetics, within the scope of ISO 10319 standard, with its trained and expert staff and advanced technological equipment.