Geotextiles fabric Trapezoid tear test equipment, Tearing Strength test. 

Scope of application

Geotextiles fabric Trapezoid tear test is applicable to the determination of tear strength of woven geotextiles, non-woven geotextiles, and impermeable geomembranes. The detection results can serve as an important indicator for evaluating the mechanical damage resistance of geosynthetic materials, and are widely used in fields such as water conservancy engineering and road construction.

Test principle

Draw an isosceles trapezoid contour on a rectangular specimen, make a cut along the centerline of the trapezoid's short side, and clamp both ends of the specimen in the fixture of the strength testing machine. Apply longitudinal tensile force at a constant rate of 50mm/min until the specimen is completely torn, and record the maximum force value during the test as the tear strength result.

Sample specifications

Original dimensions: 200mm (vertical) x 75mm (horizontal) [1]

Trapezoidal parameters: bottom 100mm, height 60mm, top 25mm [1]

Cut requirement: Make a 15mm long longitudinal cut at the centerline of the trapezoidal top and bottom [1]

Instrument requirements

The experiment requires the use of equipment that meets the following conditions in a standard atmospheric environment (temperature 20 ± 2 ℃, humidity 65 ± 4%):

The precision of the strong testing machine needs to reach ± 1%

The fixture spacing is fixed at 25mm

The fixture should have a clamping surface that prevents the specimen from slipping

Equipped with a device that automatically records the force curve during the tearing process

For more information or details, please contact us:

Email: export@unitedtest.com 

whatsapp: +8613911165373