Download or read book Evaluation of Thin Asphalt Overlays for Pavement Preservation in Nevada written by Jhony Habbouche and published by . This book was released on 2015 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Introduction to Thin Asphalt Pavement Overlays written by J Paul Guyer and published by . This book was released on 2019-08-10 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introductory technical guidance for civil engineers and construction managers interested in street and highway pavement preservation using thin asphalt overlays. Here is what is discussed:1. INTRODUCTION2. BENEFITS AND LIMITATIONS3. WHEN TO APPLY4. DENSE-GRADED ASPHALT MIXTURE DESIGN FOR THIN ASPHALT OVERLAYS5. PRESERVATION PROJECT DEVELOPMENT AND PAVEMENT STRUCTURE DESIGN6. CONSTRUCTION PRACTICES AND QUALITY CONTROL7. PERFORMANCE8. SUMMARY.

Download or read book An Introduction to Thin Asphalt Pavement Overlays written by J. Paul Guyer, P.E., R.A. and published by Guyer Partners. This book was released on 2019-08-10 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introductory technical guidance for civil engineers and construction managers interested in street and highway pavement preservation using thin asphalt overlays. Here is what is discussed: 1. INTRODUCTION 2. BENEFITS AND LIMITATIONS 3. WHEN TO APPLY 4. DENSE-GRADED ASPHALT MIXTURE DESIGN FOR THIN ASPHALT OVERLAYS 5. PRESERVATION PROJECT DEVELOPMENT AND PAVEMENT STRUCTURE DESIGN 6. CONSTRUCTION PRACTICES AND QUALITY CONTROL 7. PERFORMANCE 8. SUMMARY.

Download or read book Evaluation of New Pavement Technologies in Nevada written by Peter E. Sebaaly and published by . This book was released on 2003 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Introduction to Thin Asphalt Pavement Overlays for Professional Engineers written by J. Paul Guyer, P.E., R.A. and published by Guyer Partners. This book was released on with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introductory technical guidance for civil engineers, highway engineers and construction managers interested in pavement construction and maintenance. Here is what is discussed: 1. INTRODUCTION, 2. BENEFITS AND LIMITATIONS, 3. WHEN TO APPLY, 4. DENSE-GRADED ASPHALT MIXTURE DESIGN FOR THIN ASPHALT OVERLAYS, 5. PRESERVATION PROJECT DEVELOPMENT AND PAVEMENT STRUCTURE DESIGN, 6. CONSTRUCTION PRACTICES AND QUALITY CONTROL, 7. PERFORMANCE, 8. SUMMARY.

Download or read book Evaluation of an Asphalt Overlay for Rubblized and Cracked seated Portland Cement Concrete written by Joanna Kay Ambroz and published by . This book was released on 1996 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Thin and Ultra thin Whitetopping written by Robert Otto Rasmussen and published by Transportation Research Board. This book was released on 2004 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 338: Thin and Ultra-Thin Whitetopping summarizes available information to document how state departments of transportation and others are currently using thin and ultra-thin whitetopping overlays among various pavement rehabilitation alternatives. The report covers all stages of the proper application of whitetopping overlays, including project selection, design, materials selection, construction, maintenance, and eventual rehabilitation or replacement.

Download or read book Asphalt Pavements written by Y. Richard Kim and published by CRC Press. This book was released on 2014-11-06 with total page 1966 pages. Available in PDF, EPUB and Kindle. Book excerpt: Asphalt Pavements contains the proceedings of the International Conference on Asphalt Pavements (Raleigh, North Carolina, USA, 1-5 June 2014), and discusses recent advances in theory and practice in asphalt materials and pavements. The contributions cover a wide range of topics:- Environmental protection and socio-economic impacts- Additives and mo

Download or read book Evaluation of Pavement Rating System for Flexible Pavements in Nevada written by Roshan Suwal and published by . This book was released on 2014 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evaluation of pavement condition is the principle source of information for the effective management of the road network for local and state transportation agencies. However, transportation agencies in the United States are using different pavement rating systems to evaluate their pavement condition. The data collection system, measurement units, and calculation techniques have been modified and updated by several states to incorporate new technological development with time. Several transportation agencies are willing to update their old pavement rating systems while others elected to gradually switch to more accurate rating systems. This study focuses on the potential enhancements on the Pavement Rating Index (PRI) used by Nevada Department of Transportation (NDOT) to make it more consistent with nationally applied systems such as the Pavement Condition Index (PCI) developed by U.S. Army Construction Engineering Research Laboratory. Pavement condition data that were utilized to calculate PRI over the last 15 years were converted into PCI compatible format using a suitable conversion technique. Estimated PCI values were plotted against the corresponding PRI value showed moderate correlation with R2 value of 0.56. The current PRI system was then enhanced to eliminate some of its deficiencies. The statistical relationship between the enhanced PRI and PCI showed improved correlation with R2 value of 0.75. The study concluded that a successful correlation between the PRI system and the PCI system can be achieved in Nevada while maintaining the use of the historical pavement condition data. This study also suggests using a recommended PRIr system which adds the impact of roughness and friction onto the enhanced PRI system. Finally, this study compares the road maintenance strategies suggested by the current PRI system and the PRIr system with the time based schedule and the actual activities applied on the pavement section. This comparison concluded that, while both the PRI and PRIr systems show good correlations with the time based schedule and actual activities for assigning preventive and corrective maintenance strategies, the PRIr system showed improved correlations with the time based schedule and actual activities for assigning the overlay strategy. The PRIr system is recommended for implementation by NDOT due to its consistency with national systems (i.e., PCI) and its superior correlations with time based schedule and actual activities for overlays which leads to significant savings of rehabilitation funds.

Download or read book Fabrics in Asphalt Overlays and Pavement Maintenance written by Richard D. Barksdale and published by . This book was released on 1991 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: This synthesis will be of interest to pavement designers, maintenance engineers, and others interested in methods and procedures for reducing reflection cracking of asphalt overlays. Information is provided on the use of paving fabrics and membranes in pavement rehabilitation. Reflection cracking of pavement overlays results in decreased pavement performance with respect to ride quality, structural support, skid resistance, and safety. The use of fabrics is one of the alternatives that are available to reduce or delay reflection cracking. This report of the Transportation Research Board describes the experiences of agencies in the use of fabrics and membranes for reduction of reflection cracking.

Download or read book Proposed Performance prediction Equations and Threshold Triggers for Thin overlay Treatments Using the Long term Pavement Performance Database written by Michael D. Elwardany and published by . This book was released on 2018 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of pavement-preservation treatments is to correct surface defects, improve ride quality, improve safety characteristics, and extend pavement life without increasing the structural capacity of the pavement. The application of a thin overlay is expected to extend the life of a pavement by 8–10 yr, although this range may vary depending on traffic, environmental conditions, quality of the materials, and workmanship. Thin overlays do not significantly increase the structural capacity of a pavement. Thus, the existing pavement condition should be evaluated carefully prior to the application of a thin overlay to ensure that structural rehabilitation is not necessary. A set of guidelines to determine the best time to apply thin-overlay treatments would help highway agencies optimize their budgets, thereby leading to potentially significant taxpayer savings. The objective of this study was to develop guidelines, parameters, and performance-prediction equations to select the most appropriate time to apply a thin-overlay treatment based on the condition of the existing pavement. To arrive at the proposed guidelines, data from the Long-Term Pavement Performance (LTPP) Program Specific Pavement Studies 3 and 5 were used to evaluate the effects of climate, traffic, existing asphalt concrete (AC)–layer thickness, and overlay thickness on the life extension that results from the application of thin-overlay treatments. The results demonstrate that threshold triggers based on longitudinal cracking in the wheel path and rutting severity can be used to select the best time to apply a thin overlay in order to achieve a target pavement-life extension. Analysis of the LTPP data shows that both the traffic level and existing AC-layer thickness significantly affect the life extension that results from the application of a thin overlay in terms of retarding rutting and longitudinal cracking, respectively. This paper presents empirical equations to predict the life gain that can be achieved from a thin-overlay treatment based on the existing pavement conditions.

Download or read book Exploring Alternative Strategies for the Rehabilitation of Low volume Roads in Nevada written by Gayle Maurer and published by . This book was released on 2008 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of Design Guide for Thin and Ultra thin Concrete Overlays of Existing Asphalt Pavements Task 2 written by Feng Mu and published by . This book was released on 2011 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: The existing ultra-thin whitetopping (UTW) and thin whitetopping (TWT) design methods are reviewed so that any gaps in the design process can be identified. Four design methods are included, namely the Colorado Department of Transportation (CDOT) method, the New Jersey Department of Transportation method, the Portland Cement Association (PCA) method, and the Illinois Centre for Transportation (ICT) method. The structural response and performance models used in these methods are evaluated using field data from the whitetopping sections at MnROAD. Based on these evaluation, the PCA structural model developed for the calculation of stress in the corner and at the top of the overlay seems more suitable for the prediction of the structural response of UTW and the CDOT structural model developed for the calculation of stress at the lane/shoulder edge and at the bottom of the overlay is more suitable for TWT. It is also found that the use of a temperature-dependent asphalt modulus of elasticity results in significantly higher fatigue damage in the overlay, which is ignored by all four methods. Finally, the asphalt fatigue analysis incorporated in some of these design procedures is does not result in fatigue failure of the hot mix asphalt and therefore need not be considered when designing these overlays.

Download or read book Effect of Geotextile Fabrics on Reflective Cracking of Hot Mix Asphalt Overlays in Washoe County Nevada written by Nathaniel Evan Morian and published by . This book was released on 2007 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: This investigation was conducted in an effort to examine the effectiveness of geotextile fabrics used in conjunction with hot mix asphalt overlays over existing hot mix asphalt pavement sections in the jurisdiction of the Engineering Department in Washoe County, Nevada. The analysis was focused on the effects of the fabric placement on cracking visible at the surface of the new overlay sections, most notable reflective cracking transferred from the existing pavement prior to the overlay. Only the surface of the pavements were explored using the visual condition survey methods utilized by the Micro PAVER software and pavement management system on multiple overlay projects constructed from 1983-2003. The distress measurements of the analysis sections were conducted prior to the overlay placement and approximately one, three, and five years, following the overlay application. The overlay thicknesses varied from 1.5-2.5 inches with and without fabric placements.--Adapted from abstract.

Download or read book Subsurface Condition Evaluation for Asphalt Pavement Preservation Treatments written by Jusang Lee and published by . This book was released on 2013-12-31 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book State of the art Review of Flexible Pavement Overlay Design Procedures written by David E. Newcomb and published by . This book was released on 1989 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Subsurface Condition Evaluation of Asphalt Pavement for Pavement Preservation Treatments written by Hyungjun Ahn and published by . This book was released on 2015 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Indiana Department of Transportation (INDOT) has developed a guideline for evaluation of subsurface condition, a project-level evaluation for applicability of Indiana pavement preservation treatments (PPT). The developed guideline, using ground penetration radar (GPR) measurements, surface distress, and laboratory tests, determines the pavement subsurface distress severity and its distribution. The guideline also incorporates the newly developed water stripping severity test utilizing the digital image processing. The guideline has hierarchal evaluation system based on the type of data available for the test section. Level 1 is selected if GPR analysis data is available, level 2 is selected if surface distress data is available, and level 3 is used for all other cases. In addition, the subsurface distress distribution analysis tool (DCUAL) provides the locations of the PPT applicable sections. Case studies were conducted to provide aid to better understand the guideline, to present the example evaluation results upon the application of the guideline, and to validate the applicability of guidelines. Three test roads treated with PPTs within two to three years in Indiana were selected, and different evaluation levels were applied to the test roads. Level 1 and level 2 were applied for state road (SR) SR-70, and level 2 and 3 was applied for SR-257 and SR-43, respectively. Level 1 and level 2 analyses in the case study showed a good agreement with the case of the non-uniform subsurface distress distribution. In the process of determining the PPT applicability, pavements with the overall score of 60 or higher were found to be suitable for PPTs for all three levels of analysis and suitable for the Indiana State Roads having average annual daily traffic of less than 9000. Overall, the case study validated that the guideline provides a consistent, rational, and data-driven decision-making process for the applicability of the project-level pavement preservation program.