Determination of Optimum Time for the Application of Surface Treatments to Asphalt Concrete Pavements - Phase II
2008-06
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Determination of Optimum Time for the Application of Surface Treatments to Asphalt Concrete Pavements - Phase II
Published Date
2008-06
Publisher
Minnesota Department of Transportation
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Report
Abstract
Significant resources can be saved if reactive type of maintenance activities are replaced by proactive activities that could
significantly extend the pavements service lives. Due to the complexity and the multitude of factors affecting the pavement
deterioration process, the current guidelines for applying various maintenance treatments are based on empirical observations
of the pavement surface condition with time.
This report presents the results of a comprehensive research effort to identify the optimum timing of surface treatment
applications by providing a better understanding of the fundamental mechanisms that control the deterioration process of
asphalt pavements.
Both traditional and nontraditional pavement material characterization methods were carried out. The nontraditional methods
consisted of X-Ray Photoelectron Spectroscopy (XPS) for quantifying aging, while for microcracks detection, electron
microprobe imaging test (SEM) and fluorescent dyes for inspection of cracking were investigated. A new promising area, the
spectral analysis of asphalt pavements to determine aging, was also presented.
Traditional methods, such as Bending Beam Rheometer (BBR), Direct Tension (DTT), Dynamic Shear Rheometer (DSR) and
Fourier Transform Infrared Spectroscopy (FTIR) for asphalt binders and BBR and Semi-Circular Bending (SCB) for mixtures
were used to determine the properties of the field samples studied in this effort.
In addition, a substantial analysis of measured pavement temperature data from MnROAD and simulations of pavement
temperature using a one-dimensional finite difference heat transfer model were performed.
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Minnesota Department of Transportation
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Marasteanu, Mihai; Velasquez, Raul; Herb, William; Tweet, John; Turos, Mugur; Watson, Mark; Stefan, Heinz G.. (2008). Determination of Optimum Time for the Application of Surface Treatments to Asphalt Concrete Pavements - Phase II. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/151352.
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