Low-Volume Roads Rehabilitation Strategies. State-of-the-Art

摘要

A literature search was conducted to evaluate various maintenance andrehabilitation techniques applicable to asphalt-paved low-volume roads (LVR) for possible use by the Arizona Department of Transportation (ADOT). The common method of LVR rehabilitation currently used by ADOT is the hot-mix asphalt concrete overlay. In this study, other rehabilitation techniques have been reviewed and suggested based on the experience of other highway agencies. These rehabilitation techniques include surface recycling, cold-mix in-place recycling, hot-mix recycling, fabrics, and thin overlays. The decision to use these rehabilitation techniques should not be based only on the initial construction cost but on a sound life cycle cost analysis. A good pavement management system should also be used in order to evaluate the cost-effectiveness of each technique so that more efficient decisions can be taken in the future.