Article ID Journal Published Year Pages File Type
6716446 Construction and Building Materials 2018 10 Pages PDF
Abstract
The objective of this study is to investigate the effect of overlay thickness, overlay material and pre-overlay treatment on roughness evolution of asphalt overlay in the Long-term Pavement Performance (LTPP) SPS-5 experiment. Roughness data collected from SPS-5 experimental sites has a clustered longitudinal structure. A multilevel model is established to simultaneously account for measurement correlation within the same test section and roughness evolution correlation within the same experimental site. It was discovery that while as-built roughness depends on overlay material and overlay thickness, roughness growth rate only depends on overlay thickness.
Related Topics
Physical Sciences and Engineering Engineering Civil and Structural Engineering
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