Performance of geotextiles in landfills covers
Conference
·
OSTI ID:543131
As part of the research into the performance of geotextiles in landfill covers, 14 test pits were excavated in five landfill covers constructed between 1988 and 1992 in Washington State. Materials used in the drainage system were examined and documented. Specimens of geotextiles (all 8 oz/yd{sup 2}, needle punched nonwovens) as well as samples of the vegetative and sand drainage soils, were obtained for laboratory analyses. Laboratory tests indicated that the geotextiles satisfactorily performed their intended filtration function. No apparent migration of fines into the drainage layer was detected. The degree of clogging was evaluated by performing permittivity tests on specimens of the exhumed geotextiles, as retrieved and after washing. Washing typically resulted in permittivity increases on the order of 30 to 90 percent.
- OSTI ID:
- 543131
- Report Number(s):
- CONF-970379--
- Country of Publication:
- United States
- Language:
- English
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