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Showing 1 to 20 of 57 for “"Asphalt Pavements"”.
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PERMEABILITY AND MOISTURE DAMAGE CHARACTERISTICS OF ASPHALT PAVEMENTS
… correlated permeability with moisture damage in Asphalt Concrete (AC). This study evaluates whether such a relation exists or not. In addition, correlations of permeability with AC mix volumetrics and pores are evaluated. Also, correlation of laboratory permeability with field permeability is …
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Impact of reclaimed asphalt pavements on pavement sustainability
Highway pavements are one of the main building blocks of the United States infrastructure and economy. Asphalt concrete is the most common material to construct highway pavements. Billions of dollars are spent every year to maintain and rehabilitate two-million-mile the U.S. highway network. …
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Evaluation of bonded concrete overlays on asphalt pavements
… study of 19 bonded concrete overlays on asphalt pavements (BCOA) projects in 9 states were completed in this research study. BCOA pavements ranged in age from 7 to 26-years old and average thickness per project of 3.8 to 9.3 inches. The panel size varied from 4 ft x 4ft to 12 ft x 12 ft. …
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Evaluation of asphalt pavements construction practice in West Virginia
… 2012 and 2 co-ops during summer 2013 to document asphalt pavement construction projects. The co-ops were assigned to observe and record pavement construction practices. Observations were documented on forms with supporting photographs and video records. West Virginia University was contracted to …
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Evaluation of interlayer bonding in hot mix asphalt pavements
… the level of interlayer bonding achieved in pavements. Data was obtained and used from the Federal Aviation Administration's (FAA) National Airport Pavement Test Facility located in Atlantic City, New Jersey. In this test facility, a section of the pavement had encountered a loss of bond …
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Impact of Anti-Strip Additives on Performance of Asphalt Pavements
… on the long-term performance of typical HMA pavements.Aggregates and binders were obtained from five different sources: Alabama, California, Illinois, South Carolina, and Texas to produce HMA mixtures that were evaluated in this study. Three mix designs were conducted for each material …
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Investigation on the mechanisms of block cracking in asphalt pavements
Block cracking in asphalt pavements is a primary form of surface cracking but has been the subject of very few scientific investigations. The extensive nature of this cracking form often leads to significant maintenance costs and reduces the ride quality and service life of the pavement surface. …
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Evaluation of Nevada's Warm Mix Asphalt Mixtures with Recycled Asphalt Pavements
The purpose of this study is to evaluate warm mix asphalts (WMA) with recycled asphalt pavement (RAP) from Nevada. For this study, four different warm mix technologies and four different aggregate sources with two different percentages of recycled asphalt binder ratios were used.Aggregates from …
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Performance Characterization of Recycled Asphalt Pavements with Warm Mix Asphalt Technologies
… performance characteristics of Recycled Asphalt Pavements (RAP) with Warm Mix Asphalt (WMA) Technologies. RAP was introduced in mixtures at three levels: 0, 15 and 35% of RAP contents. Five WMA technologies were evaluated against all the mentioned levels of RAP content. The study was …
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Cracking and Roughness of Asphalt Pavements Constructed Using Cement-Treated Base Materials
… (CTB) that can lead to reflection cracking in asphalt surfaces. Cracking may then cause increased pavement roughness and lead to poor ride quality. The overall purpose of this research was to utilize data collected through the Long-Term Pavement Performance (LTPP) program to investigate the use …
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Quantifying the Service Life and Potential Environmental Benefits of Recycled Asphalt Pavements
In-service pavements require maintenance and rehabilitation (MandR) interventions to keep them in compliance with structural and functional standards. With the increased focus on the sustainability of our roadway systems, it has become important to document the cost and environmental impacts of …
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A Pavement Structural Capacity Index for Use in Network-level Evaluation of Asphalt Pavements
… which facilitates the inclusion of the pavements structural condition in many pavement management applications. The primary goal of network-level pavement management is to maintain an acceptable condition of the pavements within the network using available, and often limited, resources. …
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Analysis of Laboratory Testing Results and Performance Evaluation of Recycled Asphalt Pavements (Flexural Fatigue, Creep Compliance)
… tensile strength, Marshall mixture design and asphalt cement properties.
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Concepts for Mechanistic-Empirical Design Procedure for Extended Life Hot Mix Asphalt Pavements With a Multi-Layered Structure
… by the thickness and multi-layered system of the pavements studied.
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Establishing the Location and Magnitude of Critical Tensile Strains and Octahedral Shear Stresses for Design of Asphalt Concrete Pavement Systems
In recent years, our pavements experienced premature surface cracking and rutting. Traditional mechanistic design procedures account for two modes of failure in asphalt pavements: Fatigue and Rutting.
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Analysis of tire-pavement interaction and pavement responses using a decoupled modeling approach
… interface. In the pavement model, the asphalt layer is modeled as a linear viscoelastic material and the granular base layer is modeled as a nonlinear anisotropic material. The FE pavement model was used to analyze critical pavement responses in thin and thick asphalt pavements …
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Evaluation of performance graded asphalt binder equipment and testing protocol
The testing and grading of asphalt cement has progressively changed to meet the demanding needs for quality hot mix asphalt pavements. From October 1987 through March 1993, the Strategic Highway Research Program (SHRP) conducted a {dollar}50 million research effort to improve asphalt pavement …
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Development of fatigue based pay adjustment factors in performance-related specifications for full-depth asphalt concrete pavements
… specifications for full-depth asphalt pavements. A rational method of adjusting a contractor's payment as a function of the quality of the product is an essential element of a performance related specification (PRS).
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An acoustic emission-based test to evaluate low temperature behavior of asphalt materials
Low temperature cracking in asphalt pavements located in cold climates is a major cause of pavement deterioration. Accurate evaluation of low temperature cracking behavior of asphalt materials is necessary in order to design pavements that are resistant to thermally induced cracking. Detrimental …
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