Geotextile quality test items
Unit Weight/Mass per Unit Area: This is a test to determine the weight per unit area of a geotextile. It can be done by weighing a geotextile of known area in the laboratory.
Tensile Strength: This is a test to evaluate the strength of a geotextile under tensile loading. Typically performed on a tensile testing machine, tensile strength is calculated by applying a tensile force and measuring the load and elongation.
Elongation (Elongation): This is a measure of the elongation of the geotextile in a tensile test. It characterizes the flexibility and ductility of geotextiles.
Burst Strength: This is a test to evaluate the geotextile’s ability to resist rupture. Generally, pneumatic or hydraulic testing methods are used to determine the rupture strength of geotextiles by applying internal pressure.
Tear Strength: This is a test used to evaluate the tear resistance of geotextiles. Typically the test is performed using a standard tear tester and the force required to tear is recorded.
Sieve Analysis: Sieve analysis of geotextiles can determine its particle size distribution. This can be done by placing the geotextile sample in a sieving device and vibrating the sieve.
Water Flow Rate: This is a test to evaluate the permeability and drainage performance of geotextiles. Measurements are made by applying pressure and recording the flow of water through the geotextile.
Chemical Resistance: This is to test the ability of geotextiles to corrode or degrade chemicals. It can be evaluated by immersing geotextile samples in different chemical liquids and checking the changes in the properties of the samples.
The test items listed here are only common geotextile quality tests, and the specific test items and standards may vary according to different applications and requirements. It is recommended to refer to relevant standards and specifications, or cooperate with suppliers or testing laboratories to determine the quality test items applicable to your specific geotextiles, and ensure that the tests are carried out in professional institutions or laboratories.