Study on the Pre-maintaining Technology for the Drainage Pavement

摘要

In the use of the drainage pavement, the major point was the analysis of the aging of the road drainage and water damage. The pre-maintaining methods around the asphalt recycling of drainage pavement were determined through the comparative analysis to the current pre-maintaining methods, that is, asphalt regeneration of the pre-treatment method based conservation approach. Rely on Mian-ning highway projects, road drainage and the use of renewable Lek conducted a pre-conservation treatment. Then the performances of asphalt after treatment were tested in terms of laboratory and field tests. The results indicate that: Asphalt recycling agent had the strong infiltration capacity. Three indexes values of recycling asphalt were improved correspondingly. It was important to slow down the anti-slide capacity for the drainage pavement and the influence to the drainage performance was small. Consequently, it is feasible that the above treatment methods for asphalt are used in the pre-maintaining of drainage pavement. Treatment methods were described in the drainage asphalt road surface in advance of the feasibility of eouservation. Construction process and attention to conservation issues of pre-treatment method are put forward, which can provide a reference for the pre-maintaining of drainage pavement.