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    Design and Construction of Chip Seals for High Traffic Volume

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    Chip seal construction is avoided on high traffic volume pavements because of: • Vehicle Damage • Short Life Expectancy • Noise/Roughness

    This paper describes methods of effectively constructing chip seals on high traffic volume pavements (greater than 7500 vehicles per day per lane on four lanes, or approximately 30,000 ADT) and avoiding the problems indicated above.

    Much of the research described in this paper culminated in the construction and performance evaluation of four experimental pavements designed to demonstrate effectiveness of chip seal applications on high traffic volume asphalt concrete pavements. Over twenty different experimental test sections were constructed as part of this study.

    Performance of one of the pavements over the past seven years suggests that initial aggregate embedment must be higher than for chip seals carrying conventional traffic to resist aggregate loss within the first 24 hours of trafficking. Further, to avoid flushing due to the higher initial aggregate embedment, stiffening of the emulsion residues through modification appears necessary.


    seal coat, chip seal, maintenance, rehabilitation, high traffic

    Author Information:

    Shuler, S
    Product Development Manager, Western Mobile, Inc., Denver, CO

    Committee/Subcommittee: D04.38

    DOI: 10.1520/STP12854S