ABSTRACT
Several large-scale laboratory tests were conducted on multiple geosynthetic specimens to assess damage effects from ultra-light weight foamed glass aggregates (UL-FGA) versus AASHTO #57 stone. When geotextile or geogrid design strengths are needed for geosynthetics used in separation or reinforcement applications, one needs to define the long-term design allowable strength. This value utilized in design, is arrived at by first determining the ultimate wide strip tensile strength and then reducing this value to an allowable one by the applying partial factors of safety for creep potential, installation damage and degradation potential. Favorable results were realized with UL-FGA compared to AASHTO #57 stone.
