STUDY ON DEGRADATION FACTORS OF GEOMEMBRANE UNDER VARIOUS CONDITIONS IN LANDFILLS

Abstract

In this study, the author took geomembrane samples from 3 conditions (exposed to sunlight, exposed under protection mat, buried in waste) in landfills and evaluated each degradation progress by microscopy, roughness measurement on surface, tensile test and so on. The result showed that geomembrane samples under protection mat and buried in waste had less cracks on surface and retain initial mechanical performance compared to those exposed to sunlight. In temperature measurement on surface, there were big difference in temperature changes with or without protection ma and the total amount of solar radiation considering that had a negative correlation with mechanical properties.