Since 1984, ASTM Committee D35 on Geosynthetics has developed standards for materials used in roadway stabilization and repair, erosion control, soil drainage/reinforcement, waste management, and more. In addition to its nearly 100 approved standards, the committee is proposing a Specification for Geosynthetic Alternate Daily Covers to evaluate products that cover landfills.
Currently on ballot at ASTM, this draft specification describes requirements for a variety of reusable and disposable geosynthetic alternate daily covers (ADCs) used on the working face of municipal solid-waste landfills.
“The alternate daily cover is thin plastic sheeting that’s left in place to keep down the odor, keep litter from blowing away, and keep birds from getting in. It also allows the landfill to take in more trash,” says Gary M. Kolbasuk, Product Development engineer; Engineered Films Division, Raven Industries, Sioux Falls, S.D.
The proposed specification will help end users select ADCs sold in various forms, such as reinforced/unreinforced film, reinforced/unreinforced sheet, and coated/uncoated fabric.
In plastics 25 years, Kolbasuk is leading a task group of Subcommittee D35.03 on Permeability and Filtration that is developing, through voluntary consensus, a set of standard requirements for ADCs. As they develop the requirements, the group of geotextile professionals from academia, manufacturing, and commercial laboratory testing welcomes participation from ADC producers and fabricators.
Contact Kolbasuk to participate in this activity, or to obtain further technical information (phone: 605/331-0324; gary.kolbasuk@ravenind.com). For ASTM meeting or membership details, contact Christine Sierk, manager, Technical Committee Operations, ASTM International (610/832-9728; csierk@astm.org). Committee D35 meets Jan. 15-16 in Tampa, Fla. Visit www.astm.org/COMMIT/D35.htm.

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