Download or read book Effect of Chip Sealing and Microsurfacing on Pavement Serviceability and Life written by Arudi Rajagopal and published by . This book was released on 2010 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effectiveness of Chip Sealing and Micro Surfacing on Pavement Serviceability and Life written by Arudi Rajagopal and published by . This book was released on 2010 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the details of an investigation to evaluate the effectiveness of Ohio Department of Transportation's prevailing chip seal and micro surfacing practices. The investigation focused primarily on two issues namely, optimal timing of treatment placement and cost-effectiveness. Data was derived from ODOT's Pavement Management Information System and included location, limits, data of installation, and annual performance data for 225 chip seal and 214 micro surfacing projects. At the end, this study resulted in a critical review and comprehensive understanding of the chip seal and micro surfacing program in Ohio and provided the basic data needed to determine when and where such preventive maintenance treatments are appropriate form the standpoint of both economics and performance. Based on the results obtained, the following conclusions are made: 1. Chip seals are cost effective treatments. They provide maximum benefits when applied on pavements whose Pavement Condition Rating is in the range 66 to 80. Under such conditions, chip seals can extend the service life of pavements up to seven years. 2. Micro surfacing treatments on general system (2-lane state routes) are reasonably effective. The best range of prior PCR for their installation is 61 to 70. Life of micro surfacing treatments on general system is nine years. 3. Micro surfacing treatments on priority system (4-lane or more) are marginally effective. The best range of prior PCR for their installation is 61 to 70. Micro surfacing on priority system can extend the service life of treated pavements by eight years.
Download or read book Effectiveness of Crack Sealing on Pavement Serviceability and Life written by Arudi Rajagopal and published by . This book was released on 2011 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sealing of cracks in asphalt surfaced pavements has long been one of the widely practiced pavement maintenance strategies by the highway agencies in including Ohio Department of Transportation. Crack sealing is performed with intent to reduce water infiltration, prevent pumping and avoid the need for premature base and pavement repair. A successful crack sealing project can result in numerous benefits such as - improved pavement condition, increased safety, extended service life, reduced maintenance and rehabilitation needs and overall, lower life cycle costs. A host of factors namely: sealing materials, placement techniques, equipment, pavement types and condition, type and severity of crack sealed, regional environmental and traffic conditions, evaluation procedures and so on are known to directly influence the level of success that can be attained in a crack sealing project. These variables often act individually or collectively to affect the outcome of a crack seal project. Despite the intended benefits, crack sealing may also affect the pavement in many ways like, tracking of sealing material by tire action, reduced skid resistance, a rougher pavement etc. Crack sealing is beneficial if pavement life is increased while maintaining serviceability.
Download or read book Effects of Maintenance Treatments on Asphalt Concrete Pavement Management written by Kathryn A. Zimmerman and published by . This book was released on 2002 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microsurfacing written by Douglas D. Gransberg and published by Transportation Research Board. This book was released on 2010 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 411: Microsurfacing explores highway microsurfacing project selection, design, contracting, equipment, construction, and performance measurement processes used by transportation agencies in the United States and Canada. Microsurfacing is a polymer-modified cold-mix surface treatment that has the potential to address a broad range of problems on today's highways --
Download or read book Performance and Cost effectiveness of Chip Seal and Microsurfacing in Flexible Pavements written by Mohammad Zobair Ibne Bashar and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effectiveness of Crack Sealing on Pavement Serviceability and Life written by Arudi Rajagopal and published by . This book was released on 2003 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effectiveness of Crack Sealing on Pavement Serviceability and Life written by Arudi Rajagopal and published by . This book was released on 2011 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the details of a study to evaluate effectiveness of Ohio Department of Transportation's prevailing crack sealing program. Evaluation was performed through field monitoring a large number of crack sealed and control sections. Field monitoring included collection of performance data for over five year period after crack sealing. The data collected was used to address the following specific issues: Do existing crack sealing practices within ODOT enhance pavement performance? What is the optimum timing of the treatment? Does crack sealing extend pavement life? Is crack sealing a cost effective treatment? The analysis revel that crack sealed pavements, in general, performed better than the control sections on a 5-year cycle. Regardless of pavement type, aggregate type used in the surface layer, and the prior pavement condition crack sealing always results in performance gain. Maximum performance gain can be achieved by treating pavements with Pavement Condition Rating ranging from 66 to 80. The performance prediction models indicate crack sealing treatment can extend the service life of pavements by up to 3.6 years. The cost analysis using a common metric such as the Net Present Value illustrates that crack sealing, as a maintenance strategy, is economically viable for pavements in the prior PCR range of 66-70. From a practical point of view, it is hereby recommended that ODOT develops a policy to allow crack sealing as a strategy for pavement preventive maintenance for all pavements in the prior PCR range of 66 to 80.
Download or read book Life Cycle of Pavement Preservation Seal Coats written by and published by . This book was released on 2004 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of preservation seals on asphalt pavements is a crucial part of any effective pavement management program. It is important to optimize the use of available budgets to extend the life of our pavements as much as possible. The nation's highway system is one of our most valuable assets. Analysis of the performance of surface treatments on Utah pavements indicates that Open Graded Surface Courses (OGSC) have an average life, based on skid resistance of almost 9 years and that Chip Seal Courses (CSC) have a significantly longer life. Out of all the factors analyzed, traffic has the most significant effect on the performance of the treatment. Factors such as aggregate source and asphalt supplier were also investigated but lack of data prevented from reaching any significant conclusion. Based on the relative cost of both treatments and the performance observed through this study, it is recommended that Utah Department of Transportation expand the use of CSC to certain roads with AADTs up to 20,000 vehicles and continue the existing procedure of using CSC in highway sections with AADTs below 5,000. It is also recommended that UDOT modified the existing policies and limit the use of OGSC where the running speeds are 55 mph or greater and AADTs are in excess of 25,000 vehicles. Medium volume facilities (5,000 to 25,000 AADT) should be sealed with treatments new to UDOT but proven in other states. An initial cost analysis showed that the implementation of the changes suggested as part of this report will results in savings of over $2 million per year in the maintenance budget. Thus allowing for better use of resources while still serving the traveling public.
Download or read book Chip Seal Best Practices written by Douglas D. Gransberg and published by Transportation Research Board. This book was released on 2005 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 342: Chip Seal Best Practices examines ways to assist in the development and implementation of pavement preservation programs by identifying the benefits of using chip seal as part of a preventive maintenance program and by highlighting advanced chip seal programs in use around the world. The report includes approximately 40 best practices in the areas of chip seal design methods, contract administration, equipment practices, construction practices, and performance measures. According to the report, the increased use of chip seals for maintenance can be a successful, cost-effective way of using preventive maintenance to preserve both low-volume and higher-volume pavements.
Download or read book Effectiveness of Highway Maintenance Treatments Used in Texas written by TJ. Freeman and published by . This book was released on 1998 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Supplemental Maintenance Effectiveness Research Program (SMERP) was designed to study more closely the types of maintenance treatments typically used in Texas, and it allowed the contractor to use local materials if desired. The treatments constructed in the SMERP study were asphalt rubber chip seal, polymer modified emulsion chip seal, latex-modified asphalt chip seal, conventional asphalt chip seal, and a micro-surfacing treatment. The goal for the SMERP experiment is to establish the cost effectiveness of typical and promising maintenance treatments used in Texas to prolong the life of asphalt pavements. The data collected were converted into the Pavement Condition Index (PCI) and performance curves were developed. This paper discusses the development of these performance curves.
Download or read book Design of Microsurfacing and Chip Seal Mixes with RAP for Local Roadway Application written by Mary Robbins and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: As aggregate resources are depleted, there is a need to turn to more sustainable resources and alternatives to virgin aggregate for pavement preservation treatments. A recent NAPA survey (Williams et al., 2019) shows more RAP is stockpiled in Ohio than any other state, with a total of 11.2 million tons of RAP in 2018. Given the large quantities of RAP in Ohio, and the use of chip seal and microsurfacing for pavement preservation of local roadways, there is a need to determine if RAP can provide a cost-effective alternative to virgin aggregate in pavement preservation treatments for local roadways in Ohio. This study was aimed at assessing the availability of RAP in Ohio for this application, as well as the potential cost savings associated with using RAP as an alternative to virgin aggregate in chip seal and microsurfacing treatments. Additionally, as part of this study, a laboratory evaluation of RAP selected for field study was conducted to characterize material properties in the context of chip seal and microsurfacing designs using RAP. Based on these results, chip seal and microsurfacing mix designs were developed using RAP stockpiled by two local agencies in Ohio.
Download or read book AASHTO Guide for Design of Pavement Structures 1993 written by American Association of State Highway and Transportation Officials and published by AASHTO. This book was released on 1993 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design related project level pavement management - Economic evaluation of alternative pavement design strategies - Reliability / - Pavement design procedures for new construction or reconstruction : Design requirements - Highway pavement structural design - Low-volume road design / - Pavement design procedures for rehabilitation of existing pavements : Rehabilitation concepts - Guides for field data collection - Rehabilitation methods other than overlay - Rehabilitation methods with overlays / - Mechanistic-empirical design procedures.
Download or read book Asphalt Seal Coat Treatments written by Alan Yamada and published by . This book was released on 1999 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Public Benefits of Highway System Preservation and Maintenance written by Andrew C. Lemer and published by Transportation Research Board. This book was released on 2004 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 330: Public Benefits of Highway System Preservation and Maintenance examines the current practices for identifying, measuring, and articulating the public benefits of highway system maintenance and operation, and of communicating those benefits that are understandable and meaningful to stakeholders--road users, elected officials, and others who have an interest in the system's performance.
Download or read book Relative Benefit of Chip Seal Application in Different Climatic Conditions Based on Initial Pavement Roughness written by Matild Dosa and published by . This book was released on 2012 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pavement preservation is the practice of selecting and applying maintenance activities in order to extend pavement life, enhance performance, and ensure cost effectiveness. Pavement preservation methods should be applied before pavements display significant amounts of environmental distress. The long-term effectiveness of different pavement preservation techniques can be measured in terms of life extension, relative benefit, and benefit-cost ratio. Optimal timing of pavement preservation means that the given maintenance treatment is applied so that it will extend the life of the roadway for the longest possible period with the minimum cost. This document examines the effectiveness of chip seal treatment in four climatic zones in the United States. The Long-Term Pavement Performance database was used to extract roughness and traffic data, as well as the maintenance and rehabilitation histories of treated and untreated sections. The sections were categorized into smooth, medium, and rough pavements, based upon initial condition as indicated by the International Roughness Index. Pavement performance of treated and untreated sections was collectively modeled using exponential regression analysis. Effectiveness was evaluated in terms of life extension, relative benefit, and benefit-cost ratio. The results of the study verified the assumption that treated sections performed better than untreated sections. The results also showed that the life extension, relative benefit, and benefit cost ratio are highest for sections whose initial condition is smooth at the time of chip seal treatment. These same measures of effectiveness are lowest for pavements whose condition is rough at the time of treatment. Chip seal treatment effectiveness showed no correlation to climatic conditions or to traffic levels.
Download or read book Optimal Investment Decision making for Highway Transportation Asset Management Under Risk and Uncertainty written by Zongzhi Li and published by . This book was released on 2007 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
