ASTM – New Standard Development

ASTM International Committee D35 on
Geosynthetics invites all interested parties to participate in the development
of a proposed new standard, WK15082, Specification for Measuring the Asperity
Height of Textured Geomembrane. The proposed standard is being developed by
Subcommittee D35.10 on Geomembranes.
Although asperity height is specified throughout the geosynthetic industry, a
procedure to measure it is not currently covered by an ASTM standard. WK15082
would fill this gap, according to D35.10 member Richard Lacey. “We need
everybody to embrace this procedure,” says Lacey, a senior engineer with TRI
Environmental.
Lacey says that asperity height has broad implications regarding the interface
friction potential of geomembranes. On specific projects, friction resistance
can be correlated successfully to asperity height measurements, making this
test critical where stability is a concern.
“The subcommittee would like to see participation from regulators, quality
assurance engineers and all others whom have recent experience with asperity
height measurement and a product conformance crisis,” says Lacey.
For further technical information, contact Richard Lacey, TRI Environmental,
Buena Vista, Pa. (phone: 412/412-6541; rlacey@tri-env.com). Committee D35
meets Jan. 30-Feb. 1, 2008, at the January committee week in Tampa, Fla. For
membership or meeting information, contact Christine Sierk, Technical
Committee Operations, ASTM International (phone: 610/832-9728;
csierk@astm.org).