Evaluation of Dow Chemical Production Extruded Truss-Web Landing Mat.
Abstract
This investigation was conducted to evaluate 2- by 9-ft, truss-web, heavy-duty landing mat supplied by the Dow Chemical Company. The mat was traffic-tested to evaluate its performance relative to the requirement that heavy-duty landing mat be capable of sustaining 1000 coverages of heavy-duty loading (50,000-lb, single-wheel load (SWL), 250-psi tire inflation pressure) when placed on a 4-CBR subgrade. Traffic tests were conducted to determine the performance of the truss-web mat. These traffic tests were conducted on prepared subgrades, with a rolling wheel load simulating actual aircraft conditions. A 50,000-lb SWL with a 250-psi tire inflation pressure was used. The first quantity of mat tested was designated initial production mat. Several design modifications were studied, resulting in tapering of the female connectors at the panel corners. This consisted of cutting the corners of the female connectors off for appproximately 2 in. along the connector at an angle with the panel corners. The contractor modified sufficient panels with the tapered corners for a traffic test in an effort to improve the performance of the mat. This traffic test, designated modified production test, was conducted under the same loading conditions used for the initial test.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1974
- Accession Number
- ADA032884
Entities
People
- Dewey W. White Jr.