A program of construction and performance evaluation of seven Virginia flexible pavements containing experimental features is reported. The objective of the program is to evaluate the performance of pavements incorporating new or timely design concepts and to assess the applicability of these concepts for further use. Among the major findings of the study are: (1) Pavements having equivalent design thickness indices are not necessarily equivalent in cost or early structural strength; (2) Full-depth asphaltic concrete pavements can give excellent performance in very poor soil areas, especially when the subgrade is modified with cement stabilization; (3) Transverse shrinkage cracks reflect from a cement treated stone subbase through 3 in. (75 mm) of bituminous concrete in as little as 18 months and through 7 in. (175 mm) of bituminous concrete in less than 5 years; (4) Sandwich-layer systems can have a detrimental effect on pavement performance.


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    Title :

    Evaluation of Experimental Flexible Pavements


    Contributors:

    Publication date :

    1979


    Size :

    56 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English