Standard Practice for Pressurized Air Channel Evaluation of Dual-Seamed Geomembranes

Importancia y uso:

5.1 The increased use of geomembranes as barrier materials to restrict liquid or gas movement, and the common use of dual-track seams in joining these sheets, has created a need for a standard nondestructive test by which the quality of the seams can be assessed for continuity and watertightness. The test is not intended to provide any indication of the physical strength of the seam.

5.2 This practice recommends an air pressure test within the channel created between dual-seamed tracks whereby the presence of unbonded sections or channels, voids, nonhomogenities, discontinuities, foreign objects, and the like, in the seamed region can be identified.

5.3 This technique is intended for use on seams between geomembrane sheets formulated from the appropriate polymers and compounding ingredients to form a plastic or elastomer sheet material that meets all specified requirements for the end use of the product.

Subcomité:

D35.10

Referida por:

D4439-24A, D7700-22, D8580-24, D7240-18, D8364_D8364M-21, D8173-23, D4437_D4437M-16R23

Volúmen:

04.13

Número ICS:

59.080.70 (Geotextiles)