Geotextile Wide Width Tensile Tetsing ISO 10319 -  Geotextile Wide Width Tensile Test ASTM D 4595 - Tensile Properties of Geotextiles by the Wide Width Strip Method ASTM D 4632 - Grab Breaking Load and Elongation of Geotextiles

Standard The standards listed above go into the mechanical tensile testing of geotextiles. They cover a wide range of different variations of geotextiles and similar materials such as Nonwoven geotextiles, knitted geotextiles, woven geotextiles etc. The standards also cover various methods of clamping or gripping these wide width samples properly for tensile testing with a UTM as well as going into detail about which measurements are to be measured such as elongation, strain, maximum tensile force, secant stiffness etc. For more detailed information please refer to the standard.   Accessory   Types of grips for geo textiles   Winding capstan tensile grips (aka "roller clamps" as stated in ASTM D 4595)   In the video you can see the geotextile webbing being tested on a ST-1002 with the roller clamps or winding capstan tensile grips along with the ST-S-ELON for strain or elongation measurements. Roller clamps offer less stress on the specimen while reducing stress at point of clamping or gripping. With other wide tensile grips it is often difficult to clamp properly without affecting the test results as the clamping forces apply stresses unto the specimen directly. ISO 10319 Fig 4   Strain measurements can be difficult to obtain due to the shape and material. Some times a non contact extensometer is used for geotextile strain data. For more information on non-contact extensometers and other strain analysis options please check out our page on extensometers.