Introduction to The Main Control Testing Items of Anti-seepage Membrane, Geomembrane and Geotextile Materials

The main testing items of the anti-seepage membrane, geomembrane, and geotextile materials are different, but in daily engineering, they are usually the main indicators for testing them.

The main control items of the anti-seepage membrane and geomembrane include physical indicators such as thickness, yield strength, yield elongation, fracture strength, elongation at break, right-angle tear strength, and puncture resistance. The testing standards for anti-seepage and geomembrane are generally implemented in accordance with the national standard GB / T17643-2011.

The main control testing items of geotextiles include physical indicators such as mass deviation per unit area, thickness, breaking strength, breaking elongation, CBR bursting strength, and tearing strength. The testing standards for geotextiles are generally implemented in accordance with national standards GB / T17638-2008 and GB / T17639-2008.

Of course, in addition to the above-mentioned physical indicators, there are many chemical indicators of anti-seepage film, geomembrane, and geotextile, such as carbon black content of anti-seepage film, geomembrane, carbon black distribution, density, oxidation induction time, resistance Ultraviolet rays, etc., are generally not used as the main control test items because of the long testing time.