ASTM Int'l Seeks Participation for Proposed Asperity Height Standard - ASTM WK15082
December 5, 2007 // Published as a news service by IHS
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ASTM International Committee D35 on Geosynthetics invites the public to participate in the development of proposed standard ASTM WK15082 - Specification for Measuring the Asperity Height of Textured Geomembrane.
Although asperity height is specified throughout the geosynthetic industry, a procedure to measure it is not currently covered by an ASTM standard.
ASTM WK15082 would fill this gap, according to D35.10 member Richard Lacey.
"We need everybody to embrace this procedure," said Lacey, a senior engineer with TRI Environmental.
Lacey said 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, said Lacey.
"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," said Lacey.
The proposed standard is being developed by Subcommittee D35.10 on Geomembranes.
Source: ASTM International.