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Title: Pavement tests to provide for the jumbo jets
Authors: Ahlvin, Richard G. (Richard Glen), 1919-
Keywords: Airfield pavements
Runway pavements
Flexible pavements
Rigid pavements
Pavement testing
Pavement tests
Multiple Wheel Heavy Gear Load
C-5A aircraft
Boeing 747
Publisher: U.S. Army Engineer Waterways Experiment Station.
Engineer Research and Development Center (U.S.)
Description: Miscellaneous Paper
Abstract: With the advent of jumbo-jet aircraft, as represented by the Lockheed C-5A Galaxy and the Boeing 747, we are faced with supporting three-quarter million pound and larger aircraft on pavement facilities. To provide information on pavement behavior, test sections of both flexible and rigid pavement have been constructed and are being tested to failure under the full prototype loading of one 12-wheel main landing gear of the C-5A aircraft. The testing program is a joint effort of the Army, Air Force, and Federal Aviation Administration and is being conducted at the U.S. Army.Engineer Waterways Experiment Station, Vicksburg, Mississippi. Each of the test sections incorporates items of different thicknesses planned to fail at various load repetition levels. The test subgrade was constructed to a carefully controlled strength to a full 12-ft depth. Both test sections incorporate stress, strain, and deflection measuring instruments at various depths within the structure. These instruments have been loaded not only with the full 12-wheel C-5A gear but with single-wheel gear and components of the C-5A and 747 gear at various loadings. At this reporting, only very preliminary results are available, but general indications imply less severe pavement loadings than direct extrapolations from prior criteria would predict.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Miscellaneous Paper

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