Download or read book The Use and Performance of Asphalt Binder Modified with Polyphosphoric Acid PPA written by United States. Federal Highway Administration. Office of Pavement Technology and published by . This book was released on 2012 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Technical Brief provides an overview of the implication of the use of Polyphosphoric Acid as a modifier for asphalt binders and implications in relation to asphalt pavement performance.
Download or read book Performance Evaluation of Polyphosphoric Acid Modified Asphalt Binders written by Istiaque Mahmud and published by . This book was released on 2016 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Recycled Waste Plastics as Modifiers for Performance graded Asphalt Binders written by Paul Osei and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of recycled plastics in asphalt has gained more attention in the last few years. The objective of this study is to evaluate the performance of asphalt binders that have been modified using recycled polyethylene-based plastic pellets (RPE) using the Superpave Performance Grading and the Multiple Stress Creep and Recovery (MSCR) Tests. The study will also focus on the influence of the chemical modifiers Elvaloy and Polyphosphoric Acid (PPA) on the performance of the RPE-modified binders. Two different types of RPE pellets were blended in a PG 58-28 base binder during this study. Eight (8) different modified blends were developed, four (4) of which were blended with only RPE pellets and the other four (4) included the RPE, Elvaloy, and PPA modifiers. The dosages of the RPE pellets were 2% and 4% by weight of the mix, while the Elvaloy and PPA had fixed dosages of 1% and 0.002% by weight of the mix. The study showed that the addition of the RPE to the asphalt binders improved the high-temperature performance of the binders. The 2% dosage of the RPE led to a high temperature-grade increment of the binder (from PG-58 to PG-64) while the 4% dosage led to the increment of the high-temperature grade by 2-levels (PG-58 to PG-70). The presence of the Elvaloy and PPA also affected the performance of the binder in very similar ways as compared to the RPE only. The RPE, Elvaloy and PPA modified binders showed marginally better rutting resistance than the binder with RPE only. The fatigue resistance of the modified binders was also improved after the modification process. The low-temperature performance of the modified binders was minimally affected after the modification process. The modified binders showed increased stiffnesses at low temperatures, however, the increase in stiffness was not sufficient enough to alter the low-temperature grades of the modified binders.
Download or read book Polyphosphoric Acid Modification of Asphalt written by Asphalt Institute and published by . This book was released on 2001-01-01 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polyphosphoric Acid Modification of Asphalt written by Asphalt Institute and published by . This book was released on 2005 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polymer Modified Asphalt Binders written by Kenneth R. Wardlaw and published by ASTM International. This book was released on 1992 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: "ASTM Publication Code Number (PCN) 04-011080-08. - "Sponsored by ASTM Committee D-4 on Road and Paving Materials."-- Foreword. - Includes bibliographical references and indexes. - Electronic reproduction; W. Conshohocken, Pa; ASTM International; 2011; Mode of access: World Wide Web; System requirements: Web browser; Access may be restricted to users at subscribing institutions.
Download or read book Characteristics of Asphalt Binders written by and published by . This book was released on 1996 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polyphosphoric Acid Modification of Asphalt Binders written by and published by . This book was released on 2012 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Binder Characterization and Evaluation written by David A. Anderson and published by Strategic Highway Research Program (Shrp). This book was released on 1994 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Asphalt Materials written by Shin-Che Huang and published by Woodhead Publishing. This book was released on 2015-04-08 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt: The urgent need for infrastructure rehabilitation and maintenance has led to a rise in the levels of research into bituminous materials. Breakthroughs in sustainable and environmentally friendly bituminous materials are certain to have a significant impact on national economies and energy sustainability. This book will provide a comprehensive review on recent advances in research and technological developments in bituminous materials. Opening with an introductory chapter on asphalt materials and a section on the perspective of bituminous binder specifications, Part One covers the physiochemical characterisation and analysis of asphalt materials. Part Two reviews the range of distress (damage) mechanisms in asphalt materials, with chapters covering cracking, deformation, fatigue cracking and healing of asphalt mixtures, as well as moisture damage and the multiscale oxidative aging modelling approach for asphalt concrete. The final section of this book investigates alternative asphalt materials. Chapters within this section review such aspects as alternative binders for asphalt pavements such as bio binders and RAP, paving with asphalt emulsions and aggregate grading optimization. Provides an insight into advances and techniques for bituminous materials Comprehensively reviews the physicochemical characteristics of bituminous materials Investigate asphalt materials on the nano-scale, including how RAP/RAS materials can be recycled and how asphalt materials can self-heal and rejuvenator selection
Download or read book The Asphalt Handbook written by Asphalt Institute and published by . This book was released on 2007 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt: For more than 70 years, "MS-4" has served the asphalt industry as its primary reference manual. This new, expanded edition showcases the advances in asphalt technology, covering such topics as superpave courses, asphalt binder, quality control, and rehabilitation of concrete pavements with HMA.
Download or read book Modification of Polymers written by Charles E. Carraher and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: The sheer volume of topics which could have been included under our general title prompted us to make some rather arbitrary decisions about content. Modification by irradiation is not included because the activity in this area is being treated elsewhere. We have chosen to emphasize chemical routes to modification and have striven to pre sent as balanced a representation of current activity as time and page count permit. Industrial applications, both real and potential, are included. Where appropriate, we have encouraged the contributors to include review material to help provide the reader with adequate context. The initial chapter is a review from a historical perspective of polymer modification and contains an extensive bibliography. The remainder of the book is divided into four general areas: Reactions and Preparation of Copolymers Reactions and Preparation of Block and Graft Copolymers Modification Through Condensation Reactions Applications The chemical modification of homopolymers such as polyvinylchlo ride, polyethylene, poly(chloroalkylene sulfides), polysulfones, poly chloromethylstyrene, polyisobutylene, polysodium acrylate, polyvinyl alcohol, polyvinyl chloroformate, sulfonated polystyrene; block and graft copolymers such as poly(styrene-block-ethylene-co-butylene block-styrene), poly(I,4-polybutadiene-block ethylene oxide), star chlorine-telechelic polyisobutylene, poly(isobutylene-co-2,3-dimethyl- 1,3-butadiene), poly(styrene-co-N-butylmethacrylate); cellulose, dex tran and inulin, is described.
Download or read book Development and Application of Bituminous Materials for Civil Infrastructures written by Hui Yao and published by Frontiers Media SA. This book was released on 2021-10-22 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transportation Research written by Tom V. Mathew and published by Springer Nature. This book was released on 2019-10-24 with total page 905 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents selected papers from the 4th Conference of the Transportation Research Group of India. It provides a comprehensive analysis of themes spanning the field of transportation encompassing economics, financial management, social equity, green technologies, operations research, big data analysis, econometrics and structural mechanics. This volume will be of interest to researchers, educators, practitioners, managers, and policy-makers world-wide.
Download or read book Understanding the Performance of Modified Asphalt Binders in Mixtures written by Kevin D. Stuart and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall objective of this study was to determine if the Superpave high-temperature rheological properties of polymer-modified asphalt binders correlate to asphalt mixture rutting resistance. An emphasis was placed on evaluating polymer-modified asphalt binders with identical (or close) high-temperature performance grades (PG's), but varied polymer chemistries. Eleven asphalt binders were obtained for this study: two unmodified asphalt binders, an air-blown asphalt binder, and eight polymer-modified asphalt binders. High-temperature asphalt binder properties were measured by a dynamic shear rheometer (DSR). Mixture rutting resistance was measured by repeated shear at constant height (RSCH), and the French Pavement Rutting Tester (French PRT). The first objective was to verify the findings of a previous study using a different aggregate. In the previous study, it was found that the Superpave high-temperature asphalt binder properties correlated to mixture rutting resistance with few outliers, and a change in high-temperature PG from 70 to 76 increased rutting resistance. However, the correlation between RSCH and asphalt binder G*/sind (delta) depended on DSR frequency. The data suggested that a low DSR frequency, such as 0.1 rad/s, might provide a better grading system than the standard DSR frequency of 10.0 rad/s. This would require a change in the current asphalt binder specification. A diabase aggregate was used in a previous study. The data using a second aggregate, a limestone aggregate, in combination with four of the asphalt binders, agreed with the findings from the diabase mixtures. The second objective was to retest the diabase mixtures at 70 degrees Celsius using RSCH. The test temperatures used in the previous study were 50 degrees Celsius for RSCH and 70 degrees Celsius for the French PRT. The polymer-modified asphalt binders had continuous high-temperature PG's ranging from 71 to 77. Therefore, it was recommended that the test temperature for RSCH be increased to 70 degrees Celsius. Again, the correlation between RSCH and G*/sind was dependent on DSR frequency. The data suggested that a low DSR frequency, such as 0.1 rad/s, might provide a better grading system. However, it is not known whether this finding applies to pavements, or is related to the accelerated nature of the RSCH test. Furthermore, G*/sind (delta) at 0.1 rad/s did not clearly provide a better correlation to RSCH than the high-temperature PG's of the asphalt binders. The degree of correlation between the French PRT and G*/sind at 70 degrees Celsius did not depend on DSR frequency, and there was only one outlier. A correlation between the French PRT and high-temperature PG provided no obvious outliers. No changes to the specification are recommended based on the French PRT results.
Download or read book Investigation of the Performance of Neat and Modified Asphalt Binders written by Yalan Tang and published by . This book was released on 2006-10-15 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sustainable Environment and Infrastructure written by Krishna R. Reddy and published by Springer Nature. This book was released on 2020-09-16 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains selects papers presented during the 2nd International Conference on Environmental Geotechnology, Recycled Waste Materials and Sustainable Engineering, held in the University of Illinois at Chicago. It covers the recent innovations, trends, and concerns, practical challenges encountered, and the solutions adopted in waste management and engineering, geotechnical and geoenvironmental engineering, infrastructure engineering, and sustainable engineering. This book will be useful for academics, educators, policy makers and professionals working in the field of civil engineering, chemical engineering, environmental sciences and public policy.
