Alaska Department of Transportation and Public Facilities (AKDOT&PF) routinely uses geosynthetics for soil stabilization, soil reinforcement, separation, mechanically stabilized earthen structures, embankments, drainage, erosion control, pavement, and silt fences. Revisions to the department’s geosynthetic specifications and design practices were submitted by the Western Transportation Institute in December 2013, but further review from geosynthetic manufacturers was desired prior to full implementation. The main objective of this project was to obtain review comments from geosynthetic manufacturers prior to final revision of the specifications. Work toward this objective began by providing the Geosynthetics Manufacturers Association (GMA) with the draft specifications to review and provide comments. Suggested changes and comments made by GMA will be taken into consideration by AKDOT&PF as they update their geosynthetic specifications.
Need to improve seal coat binder specs: replace empirical tests (penetration, ductility) withperformance-related tests applicable to bothunmodified an...
Adequate friction resistance is needed to prevent pavement slipperiness allowing vehicles to stop in a reasonable distance. For stone mastic asphalt s...
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