The Influence Of Laboratory Aging Method On The Rheological Properties Of Asphalt Binders

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The Influence of Laboratory Aging Method on the Rheological Properties of Asphalt Binders

Author : A. Abbas
Publisher :
ISBN 13 :
Total Pages : 6 pages
Book Rating : 4.:/5 (125 download)

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Book Synopsis The Influence of Laboratory Aging Method on the Rheological Properties of Asphalt Binders by : A. Abbas

Download or read book The Influence of Laboratory Aging Method on the Rheological Properties of Asphalt Binders written by A. Abbas and published by . This book was released on 2002 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Asphalt binders used in asphalt concrete roadway pavements experience aging during construction and subsequently during their service lives. Aging is the combined effect of the evaporation of volatile compounds and the chemical reaction of residual compounds with oxygen. This aging affects the rheological properties of asphalt binders. The SuperpaveTM testing and specification system uses two laboratory procedures for aging of binders prior to measuring their rheological properties, namely the rolling thin film oven (RTFO) and the pressure aging vessel (PAV). These two procedures are used to simulate the aging that takes place during construction and during service, respectively. This paper examines whether the SuperpaveTM prescribed sequence of binder aging procedures (i.e., the RTFO followed by the PAV) is necessary, or whether similar binder rheological properties are obtained using the PAV procedure only. For this purpose, three binders were tested, namely an unmodified PG 64-28, an SBS polymer-modified binder of the same grade, and an SBS polymer-modified PG 76-28. The low temperature and fatigue rheological properties were measured by a bending beam rheometer (BBR) and a dynamic shear rheometer (DSR), respectively. The findings of the study suggest that, with a few exceptions, the rheological properties measured after aging with the RTFO followed by PAV are significantly different than those obtained after PAV aging only.

The effects of laboratory aging methods on the rheology of asphalt binders

Author : Chayatan Phromsorn
Publisher :
ISBN 13 :
Total Pages : 250 pages
Book Rating : 4.:/5 (364 download)

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Book Synopsis The effects of laboratory aging methods on the rheology of asphalt binders by : Chayatan Phromsorn

Download or read book The effects of laboratory aging methods on the rheology of asphalt binders written by Chayatan Phromsorn and published by . This book was released on 1995 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Effects of Various Long-Term Aging Procedures on the Rheological Properties of Laboratory Prepared Rubberized Asphalt Binders

Author : Feipeng Xiao
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (125 download)

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Book Synopsis Effects of Various Long-Term Aging Procedures on the Rheological Properties of Laboratory Prepared Rubberized Asphalt Binders by : Feipeng Xiao

Download or read book Effects of Various Long-Term Aging Procedures on the Rheological Properties of Laboratory Prepared Rubberized Asphalt Binders written by Feipeng Xiao and published by . This book was released on 2009 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rubberized asphalt has been used to improve the mechanical characteristics (e.g., rutting resistance, fatigue life, friction, and skid resistance) of hot mix asphalt mixtures. The objective of this research was to investigate the rheological characteristics of the rubberized asphalt binders after various long-term aging procedures, using the penetration index, the dynamic shear rheometer, the bending beam rheometer, and high pressure-gel permeation chromatographic testing. The experimental design included the use of three binder sources, three binder grades (PG 64-22, PG 64-22+10 %-40 ambient rubber, and PG 76-22) and three aging states, i.e., virgin, rolling thin film oven, and pressurized aged vessel [four test temperatures (65, 80, 100, and 110°C) and five aging durations (15, 20, 40, 80, and 144 h) under the pressure of 2070 kPa]. The test results show that, as expected, the use of crumb rubber can effectively improve the PG grade and aging resistance of the virgin asphalt binder. A series of rheological properties (e.g., penetration, stiffness, m-value, and percentages of large and small molecular sizes) illustrate that the PG 64-22 binder, mixed with 10 %-40 ambient rubber, yields similar or improved rheological properties in comparison with PG 76-22 using 3 % styrene-butadiene-styrene polymer after various long-term aging procedures.

RILEM 252-CMB Symposium

Author : Lily D. Poulikakos
Publisher : Springer
ISBN 13 : 3030004767
Total Pages : 315 pages
Book Rating : 4.0/5 (3 download)

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Book Synopsis RILEM 252-CMB Symposium by : Lily D. Poulikakos

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.

Investigation of Short-term Laboratory Aging of Neat and Modified Asphalt Binders

Author : David A. Anderson
Publisher : Transportation Research Board
ISBN 13 : 0309213630
Total Pages : 78 pages
Book Rating : 4.3/5 (92 download)

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Book Synopsis Investigation of Short-term Laboratory Aging of Neat and Modified Asphalt Binders by : David A. Anderson

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."--

Long-term Aging of Asphalt Mixtures for Performance Testing and Prediction

Author : Y. Richard Kim
Publisher :
ISBN 13 : 9780309446839
Total Pages : 104 pages
Book Rating : 4.4/5 (468 download)

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Book Synopsis Long-term Aging of Asphalt Mixtures for Performance Testing and Prediction by : Y. Richard Kim

Download or read book Long-term Aging of Asphalt Mixtures for Performance Testing and Prediction written by Y. Richard Kim and published by . This book was released on 2018 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Physical Properties of Asphalt Cement Binders

Author : John C. Hardin
Publisher : ASTM International
ISBN 13 : 0803119887
Total Pages : 237 pages
Book Rating : 4.8/5 (31 download)

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Book Synopsis Physical Properties of Asphalt Cement Binders by : John C. Hardin

Download or read book Physical Properties of Asphalt Cement Binders written by John C. Hardin and published by ASTM International. This book was released on 1995 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: A dozen papers from a December 1993 symposium in Dallas/Fort Worth, Texas. Among the topics are why the new proposed rheological properties of asphalt binders are required and how they compare to conventional properties, the development and use of the SHRP direct tension specification test, oxidatio

Proceedings of the 10th International Conference on Maintenance and Rehabilitation of Pavements

Author : Paulo Pereira
Publisher : Springer Nature
ISBN 13 : 3031635884
Total Pages : 643 pages
Book Rating : 4.0/5 (316 download)

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Book Synopsis Proceedings of the 10th International Conference on Maintenance and Rehabilitation of Pavements by : Paulo Pereira

Download or read book Proceedings of the 10th International Conference on Maintenance and Rehabilitation of Pavements written by Paulo Pereira and published by Springer Nature. This book was released on with total page 643 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Roads and Airports Pavement Surface Characteristics

Author : Maurizio Crispino
Publisher : CRC Press
ISBN 13 : 1000954900
Total Pages : 1066 pages
Book Rating : 4.0/5 (9 download)

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Book Synopsis Roads and Airports Pavement Surface Characteristics by : Maurizio Crispino

Download or read book Roads and Airports Pavement Surface Characteristics written by Maurizio Crispino and published by CRC Press. This book was released on 2023-06-05 with total page 1066 pages. Available in PDF, EPUB and Kindle. Book excerpt: Roads and Airports Pavement Surface Characteristics contains the papers presented at the 9th International Symposium on Pavement Surface Characteristics (SURF 2022, Milan, Italy, 12-14 September 2022). The symposium was jointly organized by the Italian company that manages Italy’s National Roads (ANAS –Ferrovie dello Stato Italiane Group), the World Road Association (PIARC) and Politecnico di Milano. The contributions aim to improve the quality of pavement surface characteristics while accomplishing efficiency, safety, sustainability, and addressing new generation mobility needs. The book covers topics from emerging research to engineering practice, and is divided in the following sections: Advanced and performing construction methods and equipment Next generation mobility Data monitoring and performance assessment Surface features and performances| Maintenance and preservation treatments Pavement management Economic and political strategies Safety and risk issues Minimizing road impacts Sustainability and performances issues about materials and design Pavements surfaces and urban heat islands Weather conditions impact Airport pavements Roads and Airports Pavement Surface Characteristics is of interest to academics, engineers and professionals in the fields of pavement engineering, transport infrastructure, and related disciplines.

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:

Rheological, Chemical and Microstructural Characterization of Asphalt Binders Aged at Different Conditions and Evaluation of the Use of Antioxidants and Copolymers to Retard Aging

Download Rheological, Chemical and Microstructural Characterization of Asphalt Binders Aged at Different Conditions and Evaluation of the Use of Antioxidants and Copolymers to Retard Aging PDF Online Free

Author : Mohammad Solaiman Khan
Publisher :
ISBN 13 :
Total Pages : 314 pages
Book Rating : 4.:/5 (113 download)

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Book Synopsis Rheological, Chemical and Microstructural Characterization of Asphalt Binders Aged at Different Conditions and Evaluation of the Use of Antioxidants and Copolymers to Retard Aging by : Mohammad Solaiman Khan

Download or read book Rheological, Chemical and Microstructural Characterization of Asphalt Binders Aged at Different Conditions and Evaluation of the Use of Antioxidants and Copolymers to Retard Aging written by Mohammad Solaiman Khan and published by . This book was released on 2017 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: The rheological, chemical and microstructural properties of asphalt binders change with oxidative aging which is accelerated at elevated temperatures. Aging stiffens asphalt binders and increases the embrittlement of asphalt mixtures which would lead to fatigue cracking and eventually pavement failure under repetitive traffic loading. This study explored the feasibility of using antioxidant additives and copolymers with antioxidant agents to retard oxidative aging of asphalt binders. The performance of the additives was evaluated at the binder and mastic levels. The laboratory experiments included two unmodified binders, various antioxidant additives and copolymers, and three aggregate types. The fatigue characteristics of asphalt binders and mastic were determined before and after aging and an aging index was defined to evaluate the effect of the additives on aging. The results demonstrated that certain antioxidants and copolymers such as Redicote AP, Solprene, and Calprene may retard the aging and improve the rheological properties of the asphalt binders. In addition, the results of mastic testing confirmed the favorable effect of certain antioxidants on improving the resistance to fatigue cracking. Furthermore, the type of aggregate was found to influence the rate of aging of asphalt mixtures. Based on the rheological and fracture test results on asphalt binders and mastic, the effect of antioxidants was further investigated and validated at spectroscopic, chemical and microstructural level using Fourier-transform infrared spectroscopy (FTIR), Gel-permeation chromatography (GPC) and Atomic Force Microscopy (AFM), respectively. The spectroscopic analysis with FTIR supported the efficacy of the additives in retarding aging by reducing the carbonyl growth in aged binders. The chemical analysis with GPC confirmed that both Redicote and Solprene were capable of reducing the large molecular size fraction in binders subjected to long-term aging. The image analysis with AFM provided insight on the spatial distribution, surface roughness parameters and micromechanical properties (i.e., adhesion, stiffness) of various phases and the effect of aging on the micro-rheology of antioxidant-modified binders. The last part of this study examined the effect of aging on the viscoelastic response of asphalt mixture using the Prony series representation and a newly developed parameter called aging state variable 'A'. The dynamic modulus test data was used for the analysis. The aging state variable 'A' was found to capture the effect of aging temperature and duration of aging on the viscoelastic properties of asphalt mixtures.

Chemical-physical-mechanical Charactization of Aging and Restoration of Asphaltic Materials in Different Length Scales

Author : Hamzeh Haghshenas Fatmehsari
Publisher :
ISBN 13 : 9780438273573
Total Pages : 0 pages
Book Rating : 4.2/5 (735 download)

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Book Synopsis Chemical-physical-mechanical Charactization of Aging and Restoration of Asphaltic Materials in Different Length Scales by : Hamzeh Haghshenas Fatmehsari

Download or read book Chemical-physical-mechanical Charactization of Aging and Restoration of Asphaltic Materials in Different Length Scales written by Hamzeh Haghshenas Fatmehsari and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Asphalt binder is a highly heterogeneous organic material; thus, its aging and restoration phenomena are very complex. Since the effects of aging and restoration on behavior of asphaltic materials are considered chemo-physical and mechanical in multiple length scales, a multiscale experimental approach can provide some significant insights to the understanding of the complex phenomenon. This study aims to investigate the laboratory aging protocol and compare it with the field aging process as well as to examine the short and long-term effects of different restorators on the mechanical, rheological, and chemical characteristics of asphaltic materials. To meet the objectives of this study, a multiscale experimental method was proposed and conducted. Three different binders (i.e. two virgin binders and one field aged binder) and restorators, a blend of different source of aggregates, and reclaimed asphalt pavement were selected/used. Test-analysis results showed that the mechanical/rheological properties and chemical analyses of the laboratory aged binders presented good correlations between aging indicators (e.g., carbonyl and colloidal index). It was also found that the long-term laboratory aging process has a limited ability to properly simulate long-term field aging. The kinetic analysis indicated that a mixed control regime, chemical reaction together with diffusion, governs the binder laboratory aging process. Test-analysis results from binders restored due to additives showed that the addition of restorators improve viscoelastic properties and fatigue resistance while they diminish rutting resistance. However, the petroleum-based restorator might contribute to maintaining the performance of the binder after another round of long-term aging. The chemical analysis indicated that the tall oil restorator contained many hydrogen bond-forming functional groups (-OH), which may increase the moisture sensitivity of the mixture. Outcomes from this study are expected to help more sustainable and energy-efficient civil infrastructure engineering due to the better selection/development of mixture components and more engineered blending of those.

Long and Deep Tunnels

Author : Vittorio Guglielmetti
Publisher : CRC Press
ISBN 13 : 0415558549
Total Pages : 1336 pages
Book Rating : 4.4/5 (155 download)

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Book Synopsis Long and Deep Tunnels by : Vittorio Guglielmetti

Download or read book Long and Deep Tunnels written by Vittorio Guglielmetti and published by CRC Press. This book was released on 2016-04-15 with total page 1336 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design and construction of “long and deep” tunnels, i.e. tunnels under mountains, characterised by either considerable length and/or overburden, represent a considerable challenge. The scope of this book is not to instruct how to design and construct such tunnels but to share a method to identify the potential hazards related to the process of designing and constructing long and deep tunnels, to produce a relevant comprehensive analysis and listing, to quantify the probability and consequences, and to design proper mitigation measures and countermeasures. The design, developed using probabilistic methods, is verified during execution by means of the so called Plan for Advance of the Tunnel (PAT) method, which allows adapting the design and control parameters of the future stretches of the tunnel to the results of the stretches already finished, using the monitoring data base. Numerous criteria are given to identify the key parameters, necessary for the PAT procedure. Best practices of excavation management with the help of real time monitoring and control are also provided. Furthermore cost and time evaluation systems are analysed. Finally, contractual aspects related to construction by contract are investigated, for best development and application of models more appropriate for tunnelling-construction contracts. The work will be of interest to practising engineers, designers, consultants and students in mining, underground, tunnelling, transportation and construction engineering, as well as to foundation and geological engineers, urban planners/developers and architects.

Investigation on the Effect of Aging Temperature and Experimental Conditions on the Rheological Properties of Asphalt Binder

Author : Di Wang
Publisher :
ISBN 13 : 9783932164385
Total Pages : pages
Book Rating : 4.1/5 (643 download)

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Book Synopsis Investigation on the Effect of Aging Temperature and Experimental Conditions on the Rheological Properties of Asphalt Binder by : Di Wang

Download or read book Investigation on the Effect of Aging Temperature and Experimental Conditions on the Rheological Properties of Asphalt Binder written by Di Wang and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Molecular Dynamics Modeling and Simulation of Bitumen Chemical Aging

Author : Farshad Fallah
Publisher :
ISBN 13 :
Total Pages : 63 pages
Book Rating : 4.:/5 (12 download)

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Book Synopsis Molecular Dynamics Modeling and Simulation of Bitumen Chemical Aging by : Farshad Fallah

Download or read book Molecular Dynamics Modeling and Simulation of Bitumen Chemical Aging written by Farshad Fallah and published by . This book was released on 2017 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical aging of asphalt binder leads to significant changes in its mechanical and rheological properties, resulting in poor pavement behavior and distress. Various laboratory methods have been used to simulate asphalt aging during the service life of the pavement. However, controversy exists regarding the capability of these methods to predict field aging, as various factors interact with the pavement during service and the mechanism behind aging is not fully understood. The two main outcomes of chemical aging are oxidation of asphalt molecules, and change in asphalt SARA (saturate, aromatic, resin, and asphaltene) fractions. Reaction of oxygen with asphalt components forms polar viscosity-building molecules, while the change in SARA fractions upsets the balance in asphalt, giving it brittle properties. As both these factors affect the binder at the molecular level, molecular dynamic (MD) simulations can provide core insights into understanding the fundamentals of asphalt aging. This study used MD simulation to investigate the effect of each aging process on the properties of asphalt binder. In that respect, a representative model of virgin binder and eight different models of aged binder were built, including models for laboratory- and field-aged binder. Properties such as density, bulk modulus, glass transition temperature, and viscosity from different MD models were compared to distinguish between the effect of each aging mechanism on binder properties. The results showed that both aging mechanisms lead to an increase in density, bulk modulus, and viscosity of the binder. The SARA fractions of laboratory-aged binder were found to affect bulk modulus and viscosity more dramatically compared to field aged binder. However, when the oxygen content of models was considered, field-aged binder showed a larger increase in bulk modulus and viscosity compared to laboratory-aged binder. This indicates that the dominant mechanism from laboratory aging process is upset in SARA fractions, while oxidation of molecules might be a more dominant mechanism for field-aged binder. No statistically significant difference was observed between the glass transition temperature values for virgin and aged binder.

Binder Characterization and Evaluation

Author : David A. Anderson
Publisher : Strategic Highway Research Program (Shrp)
ISBN 13 :
Total Pages : 504 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Binder Characterization and Evaluation by : David A. Anderson

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:

Advanced Polymer Nanocomposites

Author : Md Enamul Hoque
Publisher : Woodhead Publishing
ISBN 13 : 0323852874
Total Pages : 607 pages
Book Rating : 4.3/5 (238 download)

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Book Synopsis Advanced Polymer Nanocomposites by : Md Enamul Hoque

Download or read book Advanced Polymer Nanocomposites written by Md Enamul Hoque and published by Woodhead Publishing. This book was released on 2022-05-01 with total page 607 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Polymer Nanocomposites: Science Technology and Applications presents a detailed review of new and emerging research outcomes from fundamental concepts that are relevant to science, technology and advanced applications. Sections cover key drivers such as the rising demand for lightweight and high strength automotive parts, the need for sustainable packaging materials and conservation of flavor in the food, drinks and beverages industries, and defense initiatives such as ballistic protection, fire retardation and electromagnetic shielding. With contributions from international authors working at the cutting-edge of research, this book will be an essential reference resource for materials scientists, chemists, manufacturers and polymer engineers. Through recent advances in nanotechnology, researchers can now manipulate atoms to create materials and products that are changing the way we live our lives. These materials have enhanced properties, such as tensile strength, impact and scratch resistance, electrical and thermal conductivity, thermal stability and fire resistance. Combines processing, properties and advanced commercial applications Emphasizes synthesis and fabrication techniques Focuses on environmental and health aspects Covers future challenges, opportunities, recycling and sustainability Contains contributions from high-profile, cutting-edge international researchers