Highway funding is inadequate to maintain current road conditions under traditional maintenance and rehabilitation policies. Through a preventive maintenance program, pavements can be maintained in a cost-effective manner leading to a better pavement quality at lower total costs. Preventive maintenance is a program strategy that arrests light deterioration, retards progressive failures, and reduces the need for routine maintenance activities. The objective of this strategy is to extend the pavement’s functional life by applying treatments before the pavement deteriorates to a condition requiring a corrective treatment, such as a structural overlay. An effective strategy would feature a combination of treatments, such as periodic crack treatment followed by chip sealing. Several highway agencies have used preventive maintenance strategies successfully for both low-volume and high-volume roads. Flexible-pavement preventive maintenance treatments include fog seal, chip seal, slurry seal, microsurfacing, crack treatment, and thin hotmix overlays. The selection of a preventive maintenance treatment should be based on the condition of the existing pavement, traffic volume, and environmental conditions. Other factors include experience, budget constraints, and political reality. The Strategic Highway Research Program demonstrated that preventive maintenance is cost-effective for roads in the National Highway System. FHWA sponsored an implementation project to develop a preventive maintenace workshop and assist states with evaluation of preventive maintenance treatments. The workshop was presented in more than 20 states.


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    Title :

    Pavement Preventive Maintenance: Key to Quality Highways


    Additional title:

    Transportation Research Record


    Contributors:


    Publication date :

    1999-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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