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Landfill Liner Quality

by Michael Monteleone, Project Engr.; GIS Environmental, Huntington Beach, CA,


Serial Information: Civil Engineering—ASCE, 1990, Vol. 60, Issue 7, Pg. 47-49


Document Type: Feature article

Abstract:

Landfill liners are being made with new synthetic materials, materials which may be beyond the knowledge of the engineer in charge of the landfill construction project. Engineers need to be on the job site, learning from firsthand experience and from contractors. The specification and inspection of the liners at a landfill site in southern New Jersey provided a demonstration of construction quality assurance for this type of system. Specification of materials was done by the design by function method, i.e., according to all functions it must perform and stresses it must withstand. Materials adequate for other projects may not be well adapted to the particular conditions at hand. Materials used in construction were inspected upon delivery to the site to determine if they were the ones specified. Further conformance testing showed whether the materials had the required mechanical and physical properties. After a liner layer was laid down, its installation was inspected for adequacy: weld strength in the case of the geomembrane panels, permeability in the case of clay, etc.

Subject Headings: Construction materials | Landfills | Construction sites | Material properties | Linings | Synthetic materials | Soil strength

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