With the traffic load heavy, traffic flow channel, traffic density increases trends, many expressway performances have been gradually began to decay, such as road distresses, carrying capacity, anti-slide sharply worsen. Expressway cannot provide for vehicles, safe, comfortable, fast operation environment. Therefore, timely to expressway maintenance and repair, make its use to recover and improve the performance, extend the use fixed number of year, this way not only for expressway management department provides the huge economic efficiency, but also for the convenience of travel, expressway users to promote social material circulation is ensured. The main distresses of bituminous pavement are analyzed, such as crack, pot hole, bleeding and so on.
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