Abstract: This article reports on techniques to preserve high-volume roads so they last longer, using the same techniques, crack sealing, chip seals, slurry surfacings and overlaps that are standard for low- volume, secondary roads. But they need precision applications and disciplined choice of tactics to succeed. Instead of intuitively timed applications of off-the-shelf materials, for a chip and seal repair, the same type of repair for a high-volume road will be designed in a lab based on existing conditions, climate and traffic loads, with a binder and chip that are tailored to the demands of that particular pavement. When properly designed and applied judiciously, they can outperform the standard, more costly asphalt overlay after years of minimal care. The changes comes after the advent of the Strategic Highway Research Program, 1988-1993, which demonstrated that high-volume roads can benefit from this sort of attention. The article Includes a list of preservation methods developed by the Federal Highway Administration and descriptions of a few specific projects.
Publication Year: 2005
Publication Date: 2005-04-01
Language: en
Type: article
Access and Citation
Cited By Count: 8
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