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Title: AM2 3-4 alternate lay pattern evaluation
Authors: United States. Naval Air Systems Command.
Air Force Civil Engineering Center (U.S.)
Rushing, Timothy W.
Garcia, Lyan I.
Tingle, Jeb S.
Allison, Paul G.
Rutland, Craig A.
Keywords: AM2
Landing mat
Aluminum mat
Airfield mat
Airfield damage repair
Expeditionary airfield
Airfield Damage Repair Modernization Program (U.S.)
Publisher: Geotechnical and Structures Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: ERDC/GSL TR ; 14-38.
Description: Technical Report
Abstract: AM2 airfield matting has a long history of successful performance as an expeditionary airfield surfacing system. Logistical considerations for shipment of AM2 by the U.S. Marine Corps require equal numbers of 6-ft and 12-ft-long AM2 panels to be delivered to all project sites, resulting in far more 6-ft panels than are necessary to create a standard brickwork pattern. Therefore, the 3-4 alternate lay pattern was designed to allow Marines to use any mats on hand to fill in designated portions of the matted areas. Using the 3-4 pattern, as many as six continuous longitudinal joints are allowed, compared to only one with a brickwork pattern. A test section was constructed using the 3-4 pattern and trafficked by simulated F-15E and C-17 traffic. The test results showed a reduction in allowable passes of 92 to 96 % when compared to the brickwork pattern for an installation directly over a subgrade with a California Bearing Ratio of 6. Based on these results, the 3-4 pattern is not recommended for runways or high-speed taxiways, nor for soft soil installations.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Technical Report

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