Freeze-Thaw Cycling and Cold Temperature Effects on Geomembrane Sheets and Seams

摘要

The Bureau of Reclamation and the U.S. Environmental Protection Agency sponsoredthis study of the effect of cold temperature and freeze-thaw cycles on geomembranes used as seepage barriers in water storage and transport and waste containment. Part I involved incubating unconfined specimens in freeze-thaw cycles and performing tests at +20 deg C. Part II involved the same incubating condition as Part I, but tests were performed at 20 deg C. In Part III, specimens were confined during freeze-thaw cycles and tested at +20 deg C. part IV monitored stress relaxation behavior and cold temperature induced stress between +30 deg C and -20 deg C.