The application of the concentration index to pavements is illustrated. The problem with the design of flexible airfield pavements under newly developed jumbo-jet aircraft, as represented by the Lockheed C-5A Galaxy and the Boeing 747, is discussed. These aircraft are equipped with extremely large multiple-wheel landing gears. It is found that the CBR design equation can be used to evaluate the pavement performance under multiple-wheel gear assemblies when the equivalent single-wheel load (ESWL) is computed by the concentration index method. The concentration index is approximately independent of the load, gear configuration, and soil strength but varies with the depth.


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    Title :

    Use of Concentration Index for Pavement Design


    Contributors:
    R. G. Ahlvin (author) / Y. T. Chou (author) / H. H. Ulery (author)

    Publication date :

    1974


    Size :

    35 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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