BASIC STUDY OF TEST METHODS FOR MECHANICAL PROPERTIES OF GEOMEMBRANE

PUNCTURE RESISTANCE AND IMPACT RESISTANCE

Abstract

The use of a geomembrane liner in the landfill application is rapidly increasing lately for the purpose of preventing an environmental pollution problem by leachate. However, neither a testing method nor a quality standard for geomembranes has been established in Japan. Thus, it is our urgent task to establish related testing and evaluation methods for various properties of geomembranes such as general mechanical characteristics, endurance (thermal degradation, chemical degradation, biological degradation, etc.), durability and puncture resistance in the soil and under natural environments. Also, the cause of damage and the effect of load to geomembrances when used as a water-shielding layer have not fully been clarified by field tests yet. In our study, the basic twelve (12) mechanical property tests have been conducted aimed at finding out the main cause of damage ti geomenbranes, as well as to evaluating the subject testing methods and their applicabilities.
In this report, the test results of puncture resistance and impact resistance of geomembranes are reported.