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- W623498114 abstract "The purpose of this research was to analyze the service life of microsurfacing in Utah and address the effects of specific factors on the service life of microsurfacing. The performance of several microsurfacing projects was assessed with a pavement condition index (PCI), rut depth measurements, and mean-texture depth measurements. The performance-reduction factors of traffic severity, climate severity, and pre-existing pavement condition were also collected for each project. Treatment performance was assessed where trends in the performance data with respect to time and these other factors were analyzed. Only PCI was effective at monitoring performance with time. The microsurfacing projects maintained a PCI rating of at least Fair/Satisfactory between 3 and 7 years. This wide range of performance is best explained by variations in the condition of the underlying pavement. Microsurfacing placed on pavements with a high degree of cracking returned to a Poor rating or worse after just 3 years, while treatments on good, non-cracked pavements are expected to perform well for as long as 8 years. The climate factor was not adequately addressed as insufficient projects from high- and low-severity climates were studied. When microsurfacing is used to mitigate existing distress problems, even if traffic severities are low, the treatment service life is severely reduced and the overall investment diminished. An alternative maintenance technique is strongly recommended if the existing pavement is in poor condition. Also, performance data from other climates could be used to better understand the effect of varied climate severity on microsurfacing service life." @default.
- W623498114 created "2016-06-24" @default.
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- W623498114 date "2012-01-01" @default.
- W623498114 modified "2023-09-24" @default.
- W623498114 title "Performance Evaluation of Microsurfacing in Utah and Analysis of Performance-Reduction Factors" @default.
- W623498114 hasPublicationYear "2012" @default.
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