Record Display for the EPA National Library Catalog


Main Title Loading Point Puncturability Analysis of Geosynthetic Liner Materials.
Author Laine, D. L. ; Miklas, M. P. ; Parr, C. H. ;
CORP Author Southwest Research Inst., San Antonio, TX.;Environmental Protection Agency, Cincinnati, OH. Hazardous Waste Engineering Research Lab.
Year Published 1988
Report Number EPA-68-03-3231; EPA/600/2-88/040;
Stock Number PB88-235544
Additional Subjects Hydrostatic tests ; Linings ; Puncture resistance ; Pressure distribution ; Thermal stresses ; Experimental data ; Research projects ; Graphs(Charts) ; Polyvinyl chloride ; Polyethylene ; Chlorination ; Sulfonation ; Loads(Forces) ; Tables(Data) ; Geomembranes
Library Call Number Additional Info Location Last
NTIS  PB88-235544 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 117p
The study examined geomembrane liner performance in laboratory tests designed to subject several different liner materials to varying pressures, temperatures, and point loads. Point loads were induced by placing the geomembrane material over truncated rigid epoxy cones arranged in three-cone clusters in a sand subgrade and applying a hydrostatic load to the top side of the liner. Cone heights of 9.5, 19.0, and 25.4 mm above the subgrade were used in the study. Preliminary tests resulted in the selection of a cast epoxy resin cone having a 35-degree apex angle and truncated 2.8 mm from the apex at 45 degrees to the cone axis. Transient pressure loading tests of the membrane material without geotextile support showed failures when the pressure rate of change exceeded 55.20 kPa per hour. The maximum pressure load on the membrane proved to be the failure stress factor rather than the rate at which pressure was applied.