Standard Practice for Electrical Leak Location Using Geomembranes with an Insulating Layer in Intimate Contact with a Conductive Layer via Electrical Capacitance Technique (Conductive-Backed Geomembrane Spark Test)

Importancia y uso:

4.1 Geomembranes are used as barriers to prevent liquids from leaking from landfills, ponds, and other containments. For this purpose, it is desirable that the geomembrane have as little leakage as practical.

4.2 The liquids may contain contaminants which, if released, can cause damage to the environment. Leaking liquids can erode the subgrade, causing further damage. Leakage can result in product loss or otherwise prevent the installation from performing its intended containment purpose.

4.3 Geomembranes are often assembled in the field, either by unrolling and welding panels of the geomembrane material together in the field, unfolding flexible geomembranes in the field, or a combination of both.

4.4 Geomembrane leaks can be caused by poor quality of the subgrade, poor quality of the material placed on the geomembrane, accidents, poor workmanship, manufacturing defects, and carelessness.

4.5 Electrical leak location methods are an effective and proven quality assurance measure to detect and locate leaks.

Subcomité:

D35.10

Referida por:

D6747-25, D7909-21AR25

Volúmen:

04.13

Número ICS:

59.080.70 (Geotextiles)

Palabras clave:

arc testing method; bare geomembrane survey; conductive-backed geomembrane; damage; electrical leak detection method; electrical leak location; electrical leak location method; exposed geomembrane survey; geoelectric leak location; geomembrane; leak detection; leak location survey; leak survey; liner integrity survey; spark testing method; water lance method; water puddle method;