Using Limited Purchase Specification Tests To Perform Full Linear Viscoelastic Characterization Of Asphalt Binder

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Using Limited Purchase Specification Tests to Perform Full Linear Viscoelastic Characterization of Asphalt Binder

Author : B. Shane Underwood
Publisher :
ISBN 13 :
Total Pages : 9 pages
Book Rating : 4.:/5 (125 download)

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Book Synopsis Using Limited Purchase Specification Tests to Perform Full Linear Viscoelastic Characterization of Asphalt Binder by : B. Shane Underwood

Download or read book Using Limited Purchase Specification Tests to Perform Full Linear Viscoelastic Characterization of Asphalt Binder written by B. Shane Underwood and published by . This book was released on 2010 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: The linear viscoelastic dynamic modulus, |E*|, has become the primary material property of interest for asphalt concrete mixtures. The shift towards linear viscoelastic characterization of asphalt concrete is due in large part to national efforts to develop new fundamentally based pavement design tools and techniques. Within the pavement community, there is a substantial interest in using predictive models to estimate | E*| because key structural design decisions are based on its value. Moreover, for many projects, these critical decisions must be made even before the materials are selected. In response to the need for predictive capability, numerous equations have been developed, but most require knowing the asphalt binder shear modulus, |G*|. This property is currently measured as part of the purchase specification process, but it is not measured at enough temperatures and frequencies to be directly useful with these predictive models. Instead, agencies that want to use the predictive equations must complete additional testing that may require several days to complete and requires the purchase of more sophisticated equipment. It is the purpose of this paper to show ways that the specification data can be processed to provide nearly the same information as a more complete testing suite. This effort is possible because although the specification data are sparse, they still cover the range of conditions that need to be assessed. Additional surrogate models are needed to fully apply the proposed methodology, and the development and verification of these models are presented as well. The ability of the limited data calibration process to match characterization from more complete testing is demonstrated. Finally, it is shown that observed differences between the complete and limited calibration processes are reduced when applying two |E*| predictive models.

Binder Characterization and Evaluation: Test methods

Author :
Publisher :
ISBN 13 :
Total Pages : 220 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Binder Characterization and Evaluation: Test methods by :

Download or read book Binder Characterization and Evaluation: Test methods written by and published by . This book was released on 1994 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Standard Method of Test for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer (DSR)

Author :
Publisher :
ISBN 13 :
Total Pages : 31 pages
Book Rating : 4.:/5 (125 download)

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Book Synopsis Standard Method of Test for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer (DSR) by :

Download or read book Standard Method of Test for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer (DSR) written by and published by . This book was released on with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: This test method covers the determination of the dynamic shear modulus and phase angle of asphalt binder when tested in dynamic (oscillatory) shear using parallel plate test geometry. It is applicable to asphalt binders having dynamic shear modulus values in the range from 100 Pa to 10 MPa. This range in modulus is typically obtained between 6 and 88°C at an angular frequency of 10 rad/s. This test method is intended for determining the linear viscoelastic properties of asphalt binders as required for specification testing and is not intended as a comprehensive procedure for the full characterization of the viscoelastic properties of asphalt binder. This standard is appropriate for unaged material or material aged in accordance with T 240 and R 28.

Viscoelastic Analysis and Fatigue Characterization of Bituminous Materials in Two Length Scales Under the Influene of Aging

Author : Santosh Reddy Kommidi
Publisher :
ISBN 13 :
Total Pages : 88 pages
Book Rating : 4.:/5 (13 download)

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Book Synopsis Viscoelastic Analysis and Fatigue Characterization of Bituminous Materials in Two Length Scales Under the Influene of Aging by : Santosh Reddy Kommidi

Download or read book Viscoelastic Analysis and Fatigue Characterization of Bituminous Materials in Two Length Scales Under the Influene of Aging written by Santosh Reddy Kommidi and published by . This book was released on 2017 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fatigue cracking in asphalt concrete (AC) is of immense importance to pavement design and analysis because it is one of the most important forms of distress that can lead to structural failure in pavement. Once started, these types of cracks can be combined with other environmental factors leading to detrimental effects such as faster rates of pavement deterioration and shortened pavement life and functionality. Currently AASHTO TP101, also known as linear amplitude sweep (LAS) specification, is being widely used to evaluate the ability of an asphalt binder to resist fatigue. The LAS method, although mechanistic in its approach, has certain drawbacks. First, the test is performed on an aged 2-mm thick binder sample, which in reality may never exist in the AC where there is a varying non-uniform thickness of the binder across the components of the AC. Secondly, the test methodology predicts an increased fatigue resistance at lower strain levels of load when the binder ages. This is in contrast to the general belief among researchers that aging is one of the primary contributors to the acceleration of pavement cracking. This study aims to evaluate fatigue resistance in a more realistic approach that is more likely to exist in AC by incorporating sand asphalt mixtures. First, the linear viscoelastic properties of binder and sand asphalt mixture samples were evaluated to obtain the material properties under the influence of aging. Later, the fatigue tests on the sand asphalt mixture were investigated to understand the influence of a thin film of binder on the fatigue resistance. It was observed that based energy dissipation criterion for the binder evaluated a reasonable estimate for fatigue damage at relatively lower temperatures, but was limited to capture the influence of aging. Moreover, it was observed that fatigue testing on a binder at an intermediate temperature of 25 °C could cause edge effects to dominate as seen in the plateau regime for the phase angle in the time sweep tests. In order to overcome the edge effects in the binder LAS tests, the sand asphalt mixture testing was used for analyzing the binder fatigue resistance. Sand asphalt mixture testing could capture the microcracking and macrocracking phases more distinctively when compared to binder testing. In the case of pressure aging vessel (PAV) aged samples, it was observed that the macrocracking phase disappeared and was replaced by sudden changes in the material properties, indicating that the PAV aged mixture was more susceptible to fatigue cracking. By using the simplified viscoelastic continuum damage approach, the fatigue resistance of the binder and sand asphalt mixture was evaluated. The sand asphalt mixture testing was better to capture the influence of aging and changes in the microstructure during fatigue in comparison to binder fatigue tests..

Applications of Viscoelasticity

Author : Pouria Hajikarimi
Publisher : Elsevier
ISBN 13 : 012821211X
Total Pages : 245 pages
Book Rating : 4.1/5 (282 download)

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Book Synopsis Applications of Viscoelasticity by : Pouria Hajikarimi

Download or read book Applications of Viscoelasticity written by Pouria Hajikarimi and published by Elsevier. This book was released on 2021-04-27 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: Applications of Viscoelasticity: Bituminous Materials Characterization and Modeling starts with an introduction to the theory of viscoelasticity, emphasizing its importance to various applications in material characterization and modeling. It next looks at constitutive viscoelastic functions, outlines basic equations for different loading conditions, and introduces the Boltzmann superposition principle, relaxation modulus, and creep compliance. Mechanical models, including integer-order and fractional-order are studied next, featuring real experimentation data alongside the benefits and drawbacks of using each model in various real-world scenarios. The book then covers the correspondence principle, followed by time–temperature superposition, featuring a simple procedure to construct a real master curve and challenges that might be encountered. The concluding chapters cover the Hopkins and Hamming, Park and Kim, and General Power law methods for interconversion of constitutive viscoelastic functions, applications of viscoelasticity for experimental tests, and incremental form of viscoelastic relations for numerical modeling. The book also includes supplementary codes that users can duplicate and use in their own work. Takes an applied approach to material viscoelasticity, explaining complicated viscoelastic equations and principles Presents examples of those equations and principles being applied to common problems in realworld settings Covers constitutive viscoelastic functions, including relaxation modulus and creep compliance Outlines the construction of a master curve of viscoelastic material considering time–temperature superposition Couples the correspondence principle with common viscoelastic experiments, such as threepoint bending beam, axial and torsional bar, and dynamic shear rheometer Provides supplementary codes

Effects of Climate, Aging, and Traffic in Characterization of Asphalt Binder Fatigue Using the Las Test

Author : Hui Chen (Ph.D.)
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (134 download)

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Book Synopsis Effects of Climate, Aging, and Traffic in Characterization of Asphalt Binder Fatigue Using the Las Test by : Hui Chen (Ph.D.)

Download or read book Effects of Climate, Aging, and Traffic in Characterization of Asphalt Binder Fatigue Using the Las Test written by Hui Chen (Ph.D.) and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The linear amplitude sweep (LAS) test is considered a useful tool for evaluating fatigue of asphalt binders. The effects of oxidative aging, temperature, and loading frequency remain difficult to measure or model in a simple format. In this study, the combined effects of strain, aging and temperature are investigated using the LAS procedure, and a method for estimating binder fatigue behavior at different combinations of these effects from limited measurements is introduced. Recently, the Glover-Rowe (G-R) parameter has also been introduced as a measure of binder cracking resistance and its change with oxidative aging. This approach differs than the LAS in the time required for testing, the range in strain used, and temperature of the tests required to derive the binder fatigue parameters. In addition, there is confusion about what could be the specification acceptance limits to be used and how to consider the temperature of pavement, and traffic volume and speed in the specification criteria for the G-R. In this study, the effect of strain using in testing on the G-R parameter are investigated and a modified criterion for using it in specifications with accounting for traffic conditions and temperature, are introduced. The results of this study show that LAS parameters, A and B, after different aging durations or at different temperatures, have a good relationship with the binder complex modulus (G*) measured at the corresponding conditions. Therefore, a new fatigue life (Nf) model accounting for strain level, temperature and aging is proposed using a power function of the binder G*. The model offers a simple reliable method to predicted values of fatigue life at a wider range of aging, temperature and strain level conditions. Following the concept of Jnr limits for different traffic grades used for the Multiple Stress Creep and Recovery (MSCR) test, the threshold values of the allowable strain in LAS results, and maximum allowable G-R limits, under different traffic volume and speed conditions are defined. Similar to the MSCR approach, four fatigue traffic grades including S, H, V, and E are used in the proposed criteria. To verify that the LAS and G-R parameters are related to asphalt mixtures cracking resistance, and that the binder specification limits are logical, the results of binder testing are compared with mixture testing results and the comparison show clear evidence of the role of binders in mixture behavior in the IDEAL-CT mixture tests.

Effects of Climate, Aging, and Traffic in Characterization of Asphalt Binder Fatigue Using the Las Test

Author : Hui Chen (Ph.D.)
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (133 download)

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Book Synopsis Effects of Climate, Aging, and Traffic in Characterization of Asphalt Binder Fatigue Using the Las Test by : Hui Chen (Ph.D.)

Download or read book Effects of Climate, Aging, and Traffic in Characterization of Asphalt Binder Fatigue Using the Las Test written by Hui Chen (Ph.D.) and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The linear amplitude sweep (LAS) test is considered a useful tool for evaluating fatigue of asphalt binders. The effects of oxidative aging, temperature, and loading frequency remain difficult to measure or model in a simple format. In this study, the combined effects of strain, aging and temperature are investigated using the LAS procedure, and a method for estimating binder fatigue behavior at different combinations of these effects from limited measurements is introduced. Recently, the Glover-Rowe (G-R) parameter has also been introduced as a measure of binder cracking resistance and its change with oxidative aging. This approach differs than the LAS in the time required for testing, the range in strain used, and temperature of the tests required to derive the binder fatigue parameters. In addition, there is confusion about what could be the specification acceptance limits to be used and how to consider the temperature of pavement, and traffic volume and speed in the specification criteria for the G-R. In this study, the effect of strain using in testing on the G-R parameter are investigated and a modified criterion for using it in specifications with accounting for traffic conditions and temperature, are introduced. The results of this study show that LAS parameters, A and B, after different aging durations or at different temperatures, have a good relationship with the binder complex modulus (G*) measured at the corresponding conditions. Therefore, a new fatigue life (Nf) model accounting for strain level, temperature and aging is proposed using a power function of the binder G*. The model offers a simple reliable method to predicted values of fatigue life at a wider range of aging, temperature and strain level conditions. Following the concept of Jnr limits for different traffic grades used for the Multiple Stress Creep and Recovery (MSCR) test, the threshold values of the allowable strain in LAS results, and maximum allowable G-R limits, under different traffic volume and speed conditions are defined. Similar to the MSCR approach, four fatigue traffic grades including S, H, V, and E are used in the proposed criteria. To verify that the LAS and G-R parameters are related to asphalt mixtures cracking resistance, and that the binder specification limits are logical, the results of binder testing are compared with mixture testing results and the comparison show clear evidence of the role of binders in mixture behavior in the IDEAL-CT mixture tests.

Advances in Asphalt Materials

Author : Shin-Che Huang
Publisher : Woodhead Publishing
ISBN 13 : 0081002718
Total Pages : 493 pages
Book Rating : 4.0/5 (81 download)

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Book Synopsis Advances in Asphalt Materials by : Shin-Che Huang

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

Issues in Teaching and Education Policy, Research, and Special Topics: 2011 Edition

Author :
Publisher : ScholarlyEditions
ISBN 13 : 1464965536
Total Pages : 735 pages
Book Rating : 4.4/5 (649 download)

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Book Synopsis Issues in Teaching and Education Policy, Research, and Special Topics: 2011 Edition by :

Download or read book Issues in Teaching and Education Policy, Research, and Special Topics: 2011 Edition written by and published by ScholarlyEditions. This book was released on 2012-01-09 with total page 735 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues in Teaching and Education Policy, Research, and Special Topics: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Teaching and Education Policy, Research, and Special Topics. The editors have built Issues in Teaching and Education Policy, Research, and Special Topics: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Teaching and Education Policy, Research, and Special Topics in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Teaching and Education Policy, Research, and Special Topics: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.

Asphalt Paving Technology

Author : Carl L. Monismith
Publisher : McGraw-Hill Companies
ISBN 13 : 9780070429833
Total Pages : 480 pages
Book Rating : 4.4/5 (298 download)

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Book Synopsis Asphalt Paving Technology by : Carl L. Monismith

Download or read book Asphalt Paving Technology written by Carl L. Monismith and published by McGraw-Hill Companies. This book was released on 1997-06 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focusing on asphalt paving technology, this work emphasizes quality control and quality assurance programmes in producing high-quality pavements. It combines theory and practice of asphalt paving including developments and information from the recently completed Strategic Highway Research Program which was designed to improve asphalt specifications, mix design and analysis systems.

Annual Report

Author : Pennsylvania Transportation Institute
Publisher :
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.3/5 (555 download)

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Book Synopsis Annual Report by : Pennsylvania Transportation Institute

Download or read book Annual Report written by Pennsylvania Transportation Institute and published by . This book was released on 1990 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Modeling and Design of Flexible Pavements and Materials

Author : Dallas N. Little
Publisher : Springer
ISBN 13 : 331958443X
Total Pages : 702 pages
Book Rating : 4.3/5 (195 download)

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Book Synopsis Modeling and Design of Flexible Pavements and Materials by : Dallas N. Little

Download or read book Modeling and Design of Flexible Pavements and Materials written by Dallas N. Little and published by Springer. This book was released on 2017-09-25 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook lays out the state of the art for modeling of asphalt concrete as the major structural component of flexible pavements. The text adopts a pedagogy in which a scientific approach, based on materials science and continuum mechanics, predicts the performance of any configuration of flexible roadways subjected to cyclic loadings. The authors incorporate state-of the-art computational mechanics to predict the evolution of material properties, stresses and strains, and roadway deterioration. Designed specifically for both students and practitioners, the book presents fundamentally complex concepts in a clear and concise way that aids the roadway design community to assimilate the tools for designing sustainable roadways using both traditional and innovative technologies.

Superpave Mix Design

Author : Asphalt Institute
Publisher :
ISBN 13 : 9781934154175
Total Pages : 102 pages
Book Rating : 4.1/5 (541 download)

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Book Synopsis Superpave Mix Design by : Asphalt Institute

Download or read book Superpave Mix Design written by Asphalt Institute and published by . This book was released on 2001-01-01 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The SUPERPAVE Mix Design System Manual of Specifications, Test Methods, and Practices

Author : Edward T. Harrigan
Publisher : Strategic Highway Research Program (Shrp)
ISBN 13 :
Total Pages : 274 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis The SUPERPAVE Mix Design System Manual of Specifications, Test Methods, and Practices by : Edward T. Harrigan

Download or read book The SUPERPAVE Mix Design System Manual of Specifications, Test Methods, and Practices written by Edward T. Harrigan and published by Strategic Highway Research Program (Shrp). This book was released on 1994 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: The final product of the Strategic Highway Research Program (SHRP) Asphalt Research Program is the SUPERPAVE (registered trademark) mix design system for new construction and overlays. This system employs a series of new performance-based specifications, test methods, and practices for material selection, accelerated performance testing, and mix design. This report documents these new specifications and procedures in a format suitable for eventual American Association of State Highway and Transportation Officials (AASHTO) standardization.

Evaluation of Indirect Tensile Test (IDT) Procedures for Low-temperature Performance of Hot Mix Asphalt

Author : Donald W. Christensen
Publisher : Transportation Research Board
ISBN 13 : 0309088089
Total Pages : 62 pages
Book Rating : 4.3/5 (9 download)

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Book Synopsis Evaluation of Indirect Tensile Test (IDT) Procedures for Low-temperature Performance of Hot Mix Asphalt by : Donald W. Christensen

Download or read book Evaluation of Indirect Tensile Test (IDT) Procedures for Low-temperature Performance of Hot Mix Asphalt written by Donald W. Christensen and published by Transportation Research Board. This book was released on 2004 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction and Research Approach -- Findings -- Interpretation, Appraisal, and Applications -- Conclusions and Recommendations -- References -- Appendixes.

Bituminous Binders and Mixes

Author : L. Francken
Publisher : CRC Press
ISBN 13 : 0203627318
Total Pages : 230 pages
Book Rating : 4.2/5 (36 download)

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Book Synopsis Bituminous Binders and Mixes by : L. Francken

Download or read book Bituminous Binders and Mixes written by L. Francken and published by CRC Press. This book was released on 2004-03-01 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of the studies presented in this report is the implementation of rational concepts and testing procedures for the design and manufacture of bituminous materials for applications in pavement construction. Practical test procedures are recommended for binder evaluation, mix design and performance assessment of bituminous materials. The three main topics addressed are binder testing, mix design and mechanical testing of mixtures. Each is examined through interlaboratory tests and there is a literary review of existing practices and methods for the production of polymer modified binders, mixture design and the mechanical properties of mixtures.

Eco-efficient Pavement Construction Materials

Author : Fernando Pacheco-Torgal
Publisher : Woodhead Publishing
ISBN 13 : 0128189827
Total Pages : 422 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Eco-efficient Pavement Construction Materials by : Fernando Pacheco-Torgal

Download or read book Eco-efficient Pavement Construction Materials written by Fernando Pacheco-Torgal and published by Woodhead Publishing. This book was released on 2020-01-18 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eco-efficient Pavement Construction Materials acquaints engineers with research findings on new eco-efficient pavement materials and how they can be incorporated into future pavements. Divided into three distinctive parts, the book emphasizes current research topics such as pavements with recycled waste, pavements for climate change mitigation, self-healing pavements, and pavements with energy harvesting potential. Part One considers techniques for recycling, Part Two reviews the contribution of pavements for climate change mitigation, including cool pavements, the development of new coatings for high albedo targets, and the design of pervious pavements. Finally, Part Three focuses on self-healing pavements, addressing novel materials and design and performance. Finally, the book discusses the case of pavements with energy harvesting potential, addressing different technologies on this field. Offers a clear and concise lifecycle assessment of asphalt pavement recycling for greenhouse gas emission with temporal aspects Applies key research trends to green the pavement industry Includes techniques for recycling waste materials, the design of cool pavements, self-healing mechanisms, and key steps in energy harvesting