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    Rutting, Asphalt Mix-Design, and Proposed Test Road in Saudi Arabia

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    The drastic change in traffic characteristics due to a crash development program in Saudi Arabia has introduced new forms of pavement distresses. Rutting, which was virtually absent ten years ago, became the principal distress mode. A feasibility study was performed on the Dhahran-Abqaiq road, which is experiencing a severe rutting problem, to formulate rehabilitation alternatives. The comparative study indicates that the Hveem mix-design method gives relatively lower optimum binder content than the Marshall mix-design method and that some of the potential reasons for the rutting at the Dhahran-Abqaiq road were overasphalting, fine-graded mix, and poor quality control. In addition, test results indicate that a sulfur-extended-asphalt mixture can be utilized for reducing the rutting problem, since it provided higher stability values. Finally, to help solve the widespread rutting problem in Saudi Arabia, a decision was made to include test sections in the rehabilitation program of this road.


    pavements, asphalt mixtures, mix-design, rutting, sulfur-extended-asphalt, rehabilitation, hot climate, heavy load, roads

    Author Information:

    Lee, KW
    Associate professor, University of Rhode Island, Kingston, RI

    Al-Dhalaan, MA
    Director general, Ministry of Communications, Riyadh,

    Committee/Subcommittee: D04.27

    DOI: 10.1520/STP24559S