Download or read book Investigation of the Effect of Oil Modification on Asphalt Binders written by Amir Golalipour and published by LAP Lambert Academic Publishing. This book was released on 2014-07-21 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermally induced cracking of asphalt pavement continues to be a serious issue in cold climate regions as well as in areas which experience extreme daily temperature differentials. Low temperature cracking of asphalt pavements is attributed to thermal stresses and strains developed during cooling cycles. Improving asphalt binder low temperature fracture and stiffness properties continues to be a subject of particular concern. Therefore, significant amount of research has been focused on improving asphalt binder properties through modification. In recent years, wide ranges of oil based modifications have been introduced to improve asphalt binder performance, especially at the low service temperatures. Although, significant use of these oils is seen in practice, knowledge of the fundamental mechanisms of oil modification and their properties for achieving optimum characteristics is limited. Hence, this study focuses on better understanding of the effect of oil modifiers which would help better material selection and achieve optimum performance in terms of increasing the life span of pavements.

Download or read book Investigation of the Effect of Oil Modification on Critical Characteristics of Asphalt Binders written by and published by . This book was released on 2013 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermally induced cracking of asphalt pavement continues to be a serious issue in cold climate regions as well as in areas which experience extreme daily temperature differentials. Low temperature cracking of asphalt pavements is attributed to thermal stresses and strains developed during cooling cycles. Improving asphalt binder low temperature fracture and stiffness properties continues to be a subject of particular concern. Therefore, significant amount of research has been focused on improving asphalt binder properties through modification. In recent years, wide ranges of oil based modifications have been introduced to improve asphalt binder performance, especially at the low service temperatures. Although, significant use of these oils is seen in practice, knowledge of the fundamental mechanisms of oil modification and their properties for achieving optimum characteristics is limited. Hence, this study focuses on better understanding of the effect of oil modifiers which would help better material selection and achieve optimum performance in terms of increasing the life span of pavements. In this study, the effect of oil modification on the rheological properties of the asphalt binder is investigated. To examine the effect of oil modification on binder characteristics, low temperature properties as well as high temperature performance of oil modified binders were evaluated. It is found that oils vary in their effects on asphalt binder performance. However, for all oils used in the study, adding an oil to binder can improve binder low temperature performance, and this result mainly attributed to the softening effect. In addition to that, a simple linear model is proposed to predict the performance grade of oil modified binder based on the properties of its constituents at high and low temperatures. Another part of this study focuses on the oil modification effect on asphalt binder thermal strain and stresses. A viscoelastic analytical procedure is combined with experimentally derived failure stress and strain envelopes to determine the controlling failure mechanism, strain tolerance or critical stress, in thermal cracking of oil modified binders. The low temperature failure results depict that oil modification has a good potential of improving the cracking resistance of asphalt binders during thermal cycles.

Download or read book RILEM 252 CMB Symposium written by Lily D. Poulikakos and published by Springer. This book was released on 2018-09-12 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the Proceedings of the RILEM TC 252-CMB International Symposium on the Chemo-Mechanical Characterization of Bituminous Materials. The Symposium was attended by researchers and practitioners from different fields presenting the latest findings in the chemical, mechanical, and microstructural characterization of bituminous materials. The book offers new and cutting edge papers on innovative techniques for the characterization of bituminous materials, gaining new insights into current issues such as effects of aging, moisture, and temperature.

Download or read book Characterization of Polymer Modified Asphalt Binders Containing Processed Oil written by Navid Hemmati and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The current study investigates the impact of processed oil on asphalt binder PG 64-22 and conjugate of it with common modifiers such as Crumbed Rubber Modifier (CRM), Styrene-Isoprene-Styrene (SIS), Styrene-Butadiene-Styrene (SBS) and Petroleum Resin (PE). The binder was tested at different temperatures, and different amounts of modifiers and processed oil were added to the binder. The modified binders were also aged artificially using different procedures. The study found that adding processed oil to polymer modified binders reduces viscosity and improves workability, while the modifiers improve the rutting resistance of them, however, the addition of processed oil reduces the binder's rutting performance due to decrement of viscosity. The study also found that the conjugating of modifying polymers and processed oil improves the low temperature cracking resistance. The study's results indicate that co-modifying polymer binders with processed oil resulted in a significant reduction in viscosity values, resulting in improved workability. The results also showed that increasing the processed oil concentration from 6% to 12% caused a viscosity reduction in conjugation of CRM, SIS, SBS and PE. Even though the addition of processed oil results in a reduction in the rutting performance of asphalt binder, the addition of polymers significantly improved the rutting resistance of asphalt binders. The modified asphalt binders containing 6% and 12% processed oil decreased the G*sin ð values. This reduction caused improvement of fatigue cracking resistance of all binders modified with CRM, SIS, SBS and PE. The higher concentration of processed oil means 12% showed greater reduction rate compared to the asphalt binders containing 6% processed oil. The BBR results for modified asphalt binders showed that the incorporation of CRM, SIS, SBS and PE and processed oil improved the low temperature cracking resistance significantly, due to the high penetration rate of processed oil in asphalt binders during modification.

Download or read book Effects of Oil Modification on Aging Characteristics of Asphalt Materials written by Ryan Sylla and published by . This book was released on 2015 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermal induced cracking of asphalt mixtures is currently recognized as one of the primary distresses of asphalt pavements in cold climate regions. Thermal cracking is caused by cold temperatures, which results in the asphalt mixture becoming brittle and less capable of tolerating and relaxing thermally induced stresses. The contraction of the asphalt pavement due to decreasing temperature combined with the underlying base restraining any movement causes stress build up in the pavement until the ultimate strength is reached of the asphalt mixture, which leads to thermal crack formation. Although there are many proven asphalt modification methods to improve the asphalt performance at high service temperatures, oil modification is one of few methods that can address the low temperature distresses. Although the use of oil modifiers is common in today’s asphalt industry, oil modification’s effects to the aging mechanisms of the asphalt is relatively unknown. This study focuses on determining the implications on the aging process when using oil modifiers in asphalt binder and asphalt mastic phases. In this thesis three different oils (paraffinic, refined waste, and bio oil) were evaluated for their effects to the aging mechanisms in comparison with the unmodified base binder. The characterization of these materials was conducted by two approaches including: a.) Superpave linear viscoelastic approach using the Bending Beam Rheometer (BBR) and b.) Fracture mechanics approach using the Single Edge Notched Beam (SENB) test. In order to capture the effects of aging, the relative changes in performance were monitored through three stages of aging that aim to simulate the asphalt binder at different times within a pavement’s service life. The aging behavior of oil modified binders was also captured in the mastic phase, which is a more representative state of the continuous phase in an asphalt pavement in comparison to just the binder phase. Results indicate that the oil modification significantly effects the binder phase, but does not significantly affect the mastic phase. Binder results indicate the overall aging resistance of asphalt binder is slightly improved with oil modification and the time that aging occurs within the aging cycle is significantly altered in comparison with the unmodified binder. However, the refined waste oil in higher concentrations demonstrated detrimental effects to the aging characteristics of the binder. Mastic performance results showed little correlation with the binder performance indicating that the filler is a dominating factor. However, the mineral filler type (granite vs limestone) noticeably influenced the resulting performance of the mastics. Overall, this study concludes that oil modification can significantly alter the aging mechanisms of the binder, however these changes in binder performance do not correlate well to performance in the mixture phase.

Download or read book Modified Asphalt written by Jose Luis Rivera Armenta and published by BoD – Books on Demand. This book was released on 2018-09-19 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Asphalt modification is an important area in the development of new road and pavement materials. There is an urgent demand for road materials that can minimize fracture at low temperatures and increase resistance to deformation at high temperatures. The function of asphalt is to bind aggregate to protect it from water and other harmful agents. In the beginning asphalt was ideal for this purpose, but recently traffic loads have increased and environmental factors have deteriorated more rapidly than before. Asphalt is a byproduct of crude oil in the refining process, and it is considered a complex heterogeneous mixture of hydrocarbons. Asphalt modification has become an important research area, using several methods and new materials as modifiers.

Download or read book Re refined Engine Oil Bottom written by Pravat Karki and published by . This book was released on 2019 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many state departments of transportation have adopted the Superpave PG specification since the completion of the Strategic Highway Research Program in 1993. A much wider range of crude oil sources and binder modification techniques are being used now to produce asphalt binders. Although asphalt binders used these days still meet the requirements of the PG specification, many premature failures have been reported by many states. Texas Department of Transportation (TxDOT) initiated a study on re-refined engine oil bottom (REOB) in 2015. The objectives of this study were to establish REOB detection methods and recommend maximum allowable amount of REOB in asphalt binders and seal coat binders. Based on existing literatures, researchers developed and verified scientific methods to detect and quantify the amount of REOB in both asphalt binders and seal coat binders using a handheld or a benchtop X-Ray Fluorescence (XRF) instrument. Furthermore, a comprehensive study was performed to define the impact of REOB on asphalt binders, asphalt mixtures, and seal coat performance. Multiple sources of binders, aggregates, and REOB (including recycled binders, PPA, and GTR) were used in the evaluation. Laboratory test results clearly indicated that the addition of REOB has detrimental effects on rutting, cracking, and seal coat adhesion properties. Not only should the current upper limit of 5 percent REOB in asphalt binders be kept, but an upper limit of 5 percent REOB in seal coat binders needs to be established. The implementation of these XRF tools and recommendations on the upper limits of REOB in binders will make pavements last longer as intended.

Download or read book Hot Mix Asphalt Materials Mixture Design and Construction written by and published by . This book was released on 2009 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Guideline for Asphalt Refiners and Suppliers written by Jack S. Youtcheff and published by . This book was released on 1994 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Handbook of Research on Resource Management for Pollution and Waste Treatment written by Affam, Augustine Chioma and published by IGI Global. This book was released on 2019-10-25 with total page 795 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is necessary to understand the extent of pollution in the environment in terms of the air, water, and soil in order for both humans and animals to live healthier lives. Poor waste treatment or pollution monitoring can lead to massive environmental issues, such as diminishing valuable resources, and cause a significant negative impact on society. Solutions, such as reuse of waste and sustainable waste management, must be explored to prevent these adverse effects. The Handbook of Research on Resource Management for Pollution and Waste Treatment is a collection of innovative research that examines waste and pollution treatment methods that can be adopted at local and international levels and examines appropriate resource management strategies for environmentally related issues. Featuring coverage on a wide range of topics such as soil washing, bioremediation, and runoff handling, this book is ideally designed for environmentalists, engineers, waste management professionals, natural resource regulators, environmental policymakers, scientists, academicians, researchers, and students seeking current research on viable resource management methods for the regeneration of their immediate environment.

Download or read book Testing and Characterization of Asphalt Materials and Pavement Structures written by Kun Zhang and published by Springer. This book was released on 2018-07-11 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents new studies dealing with the attempts made by the scientists and practitioners to address contemporary issues in pavement engineering such as aging and modification of asphalt binders, performance evaluation of warm mix asphalt, and mechanical-based pavement structure analysis, etc.. Asphalt binder and mixture have been widely used to construct flexible pavements. Mechanical and Chemical characterizations of asphalt materials and integration of these properties into pavement structures and distresses analysis are of great importance to design a sustainable flexible pavement. This book includes discusses and new results dealing with these issues. Papers were selected from the 5th GeoChina International Conference 2018 – Civil Infrastructures Confronting Severe Weathers and Climate Changes: From Failure to Sustainability, held on July 23 to 25, 2018 in HangZhou, China.

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 Investigation of Short term Laboratory Aging of Neat and Modified Asphalt Binders written by David A. Anderson and published by Transportation Research Board. This book was released on 2012 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: "TRB's National Cooperative Highway Research Program (NCHRP) Report 709: Investigation of Short-Term Laboratory Aging of Neat and Modified Asphalt Binders provides a proposed method of testing for short-term laboratory aging of neat and modified asphalt binders using the modified German rotating flask as an alternative to the rolling thin film oven test. The following appendixes A-E to NCHRP Report 709 are only available in electronic format."--

Download or read book Advanced Asphalt Materials and Paving Technologies written by Zhanping You and published by MDPI. This book was released on 2018-05-04 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Advanced Asphalt Materials and Paving Technologies" that was published in Applied Sciences

Download or read book Bituminous Mixtures and Pavements VIII written by A.F. Nikolaides and published by CRC Press. This book was released on 2024-06-21 with total page 999 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bituminous Mixtures and Pavements VIII contains 114 papers as presented at the 8th International Conference ‘Bituminous Mixtures and Pavements’ (8th ICONFBMP, 12-14 June 2024, Thessaloniki, Greece). The contributions reflect the research and practical experience of academics and practicing engineers from thirty-four (34) different countries, and cover a wide range of topics: Session I: Bitumen, Modified binders, Aggregates, and Subgrade Session II: Bituminous mixtures (Design, Construction, Testing, Performance) Session III: Pavements (Design, Construction, Maintenance, Sustainability, Energy and Environmental consideration) Session IV: Pavement management and Geosynthetics Session V: Pavement recycling Session VI: Pavement surface characteristics, Pavement performance monitoring, Safety Session VII: Biomaterials in pavement engineering Session VIII: Prediction models of pavement performance Bituminous Mixtures and Pavements VIII covers recent advances in highway materials technology and pavement engineering, and will be of interest to scientists and professionals involved or interested in these areas. The ICONFBMP-conferences have been organized every four years since 1992. This 8th conference was jointly organized by: Laboratory of Highway Engineering, Aristotle University of Thessaloniki, Greece; Built Environment Research Institute (BERI), University of Ulster, UK; University of Texas San Antonio (UTSA), USA; Laboratory for Advanced Construction Technology (LACT), Technological Institute of Iowa, USA; Technological University of Delft (TUDelft), The Netherlands, and University of Antwerp, (UA), Belgium.

Download or read book Advances in Materials and Pavement Prediction written by Eyad Masad and published by CRC Press. This book was released on 2018-07-16 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Materials and Pavement Performance Prediction contains the papers presented at the International Conference on Advances in Materials and Pavement Performance Prediction (AM3P, Doha, Qatar, 16- 18 April 2018). There has been an increasing emphasis internationally in the design and construction of sustainable pavement systems. Advances in Materials and Pavement Prediction reflects this development highlighting various approaches to predict pavement performance. The contributions discuss links and interactions between material characterization methods, empirical predictions, mechanistic modeling, and statistically-sound calibration and validation methods. There is also emphasis on comparisons between modeling results and observed performance. The topics of the book include (but are not limited to): • Experimental laboratory material characterization • Field measurements and in situ material characterization • Constitutive modeling and simulation • Innovative pavement materials and interface systems • Non-destructive measurement techniques • Surface characterization, tire-surface interaction, pavement noise • Pavement rehabilitation • Case studies Advances in Materials and Pavement Performance Prediction will be of interest to academics and engineers involved in pavement engineering.

Download or read book Encyclopedia of Renewable and Sustainable Materials written by and published by Elsevier. This book was released on 2020-01-09 with total page 4238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Encyclopedia of Renewable and Sustainable Materials, Five Volume Set provides a comprehensive overview, covering research and development on all aspects of renewable, recyclable and sustainable materials. The use of renewable and sustainable materials in building construction, the automotive sector, energy, textiles and others can create markets for agricultural products and additional revenue streams for farmers, as well as significantly reduce carbon dioxide (CO2) emissions, manufacturing energy requirements, manufacturing costs and waste. This book provides researchers, students and professionals in materials science and engineering with tactics and information as they face increasingly complex challenges around the development, selection and use of construction and manufacturing materials. Covers a broad range of topics not available elsewhere in one resource Arranged thematically for ease of navigation Discusses key features on processing, use, application and the environmental benefits of renewable and sustainable materials Contains a special focus on sustainability that will lead to the reduction of carbon emissions and enhance protection of the natural environment with regard to sustainable materials