Effects Of Various Long Term Aging Procedures On The Rheological Properties Of Laboratory Prepared Rubberized Asphalt Binders

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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.

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."--

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.

Bituminous Mixtures and Pavements VIII

Author : A.F. Nikolaides
Publisher : CRC Press
ISBN 13 : 1040147089
Total Pages : 999 pages
Book Rating : 4.0/5 (41 download)

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Book Synopsis Bituminous Mixtures and Pavements VIII by : A.F. Nikolaides

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.

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.

Asphalt Paving Technology 2015

Author : Eugene Skok
Publisher : DEStech Publications, Inc
ISBN 13 : 160595294X
Total Pages : 768 pages
Book Rating : 4.6/5 (59 download)

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Book Synopsis Asphalt Paving Technology 2015 by : Eugene Skok

Download or read book Asphalt Paving Technology 2015 written by Eugene Skok and published by DEStech Publications, Inc. This book was released on 2016-02-16 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent research on asphalt binder aging and rejuvenatorsKey data on asphalt performance and formulationsUpdates on tests and specificationsFully-searchable text on CD-ROM (included) This series volume comprises research papers and technical reports developed within the U.S.-based Association of Asphalt Paving Technologists. The book is divided into sessions focused on technology, specifications, cold recycling of RAP, and rejuvenators, with special emphasis on aging and on how rejuvenators are modeled, formulated and used to improve asphalt binders and prevent cracking. The CD-ROM displays figures and illustrations in articles in full color along with a title screen and main menu screen. Each user can link to all papers from the Table of Contents and Author Index and also link to papers and front matter by using the global bookmarks which allow navigation of the entire CD-ROM from every article. Search features on the CD-ROM can be by full text including all key words, article title, author name, and session title. The CD-ROM has Autorun feature for Windows 2000 with Service Pack 4 or higher products along with the program for Adobe Acrobat Reader with Search 11.0. One year of technical support is included with your purchase of this product.

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.

The Use of DMA to Characterize the Aging of Asphalt Binders

Author : Ioan I. Negulescu
Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.3/5 (555 download)

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Book Synopsis The Use of DMA to Characterize the Aging of Asphalt Binders by : Ioan I. Negulescu

Download or read book The Use of DMA to Characterize the Aging of Asphalt Binders written by Ioan I. Negulescu and published by . This book was released on 2010 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents issues associated with long-term aging of polymer modified asphalt cements (PMACs) as reflected by dynamic mechanical analysis (DMA) data. In this study a standard SBS (styrene-butadiene-styrene block copolymer) polymer modified asphalt cement containing 3% copolymer (PMAC) meeting LADOTD specifications for PAC-40HG and PG 76-22M was selected and subjected to accelerated laboratory aging. Procedures were developed for simulation of long term aging of asphalt binders using multiple pressure aging vessel (PAV) operations in the absence and in the presence of water. Three, five and seven year old field aged asphalt samples originally of similar PMAC composition as that of PG 76-22 listed above were recovered from a wearing course mixture located on interstate I-55 near Granada, MS. All binders were characterized with respect to their composition and rheological properties.

Effect of Chemical Solvents on Rheological Properties of Recovered Asphalt Binders

Author : Yazeed Abu Hassan
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (966 download)

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Book Synopsis Effect of Chemical Solvents on Rheological Properties of Recovered Asphalt Binders by : Yazeed Abu Hassan

Download or read book Effect of Chemical Solvents on Rheological Properties of Recovered Asphalt Binders written by Yazeed Abu Hassan and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Extraction and recovery of asphalt binders is an important procedure, although the rheological properties of the recovered binder may vary from the actual values due to many factors. This study has been conducted to evaluate the effect of different chemical solvents on the rheological properties of the recovered asphalt binder at high, intermediate, and low temperatures excluding the other factors that may affect the results. Five different binders were taken into consideration when this study was conducted, PG 58-28, PG 64-22, PG 64-28, PG 70-22, and PG 76-28, along with three different types of chemical solvents largely used as an industrial solvent, which are Trycoloroethelene (TCE), N-Propyl Bromide (nPB) brand called Entron-AE and Toluene.To catch the effect left by these solvents on the recovered binders, each binder has been dissolved in a specific amount of each of the three chemical solvents individually, the proportions of the solvent to the asphalt binder used was almost equal to the amount of the solvent needed to extract the same amount of binder out of a mixtures using a centrifuge. After leaving it for a while and making sure that the binder is totally dissolved, the binder is then recovered using a normal distillation process called the Abson method. In order to determine whether the age of the binder affects the results obtained from the recovered binders or not, testing has been done on unaged binders, short term aged binders, and long term aged binders, and in order to do that, short term aging has been simulated using the Rolling Thin Film Oven Test (RTFO), and the long term aging has been simulated using the Pressurized Aging Vessel (PAV).Finally, both original and recovered binders were tested at different aging conditions using the Dynamic Shear Rheometer (DSR), and the Bending Beam Rheometer (BBR). Data were used to obtain a full continuous grading of both the original (base) binder and the recovered binder for the five different binders used in this study using the three chemical solvents. Direct Comparisons were also made to compare the results of the original binder to the recovered binders using Trichloroethylene (TCE), Normal Propyl Bromide (nPB), and Toluene. Results showed that TCE will exhibit high softening effect unlike the Toluene which showed reasonable and representative data compared to the base binder, while nPB kept on giving un consistent data without a specific pattern.

Development and Application of Bituminous Materials for Civil Infrastructures

Author : Hui Yao
Publisher : Frontiers Media SA
ISBN 13 : 2889715418
Total Pages : 214 pages
Book Rating : 4.8/5 (897 download)

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Book Synopsis Development and Application of Bituminous Materials for Civil Infrastructures by : Hui Yao

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:

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.

The Effects of Asphalt Binder Oxidation on Hot Mix Asphalt Concrete Mixture Rheology and Fatigue Performance

Author : Sung Hoon Jung
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (69 download)

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Book Synopsis The Effects of Asphalt Binder Oxidation on Hot Mix Asphalt Concrete Mixture Rheology and Fatigue Performance by : Sung Hoon Jung

Download or read book The Effects of Asphalt Binder Oxidation on Hot Mix Asphalt Concrete Mixture Rheology and Fatigue Performance written by Sung Hoon Jung and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Asphalt oxidation causes major changes to binder properties and is hypothesized to be a major contributor to age-related pavement failure such as fatigue cracking. Extensive laboratory aging research has been done to assess the effects of oxidation on binder properties. Previous work shows binder oxidation makes the binder stiffer and more brittle, leading to higher binder stresses under a given deformation. Failure occurs when these stresses exceed the strength of the binder. However, binder oxidation in pavements has not been studied in the same detail as laboratory aging of neat binders. The impact of binder oxidation on long-term pavement performance has been either underestimated or ignored. This research includes studies of binder oxidation in Texas pavements to compare the field aging with laboratory neat binder aging, the impact of binder oxidation on HMAC mixture aging and HMAC mixture fatigue performance, and fundamental rheological property changes of the binder and the mixture. Binder oxidation is studied in fifteen pavements from locations across Texas. Results indicate that unmodified binders in pavements typically oxidize and harden to a degree that exceeds generally accepted pavement aging assumptions. This hardening may also extend much deeper into the pavement than has been previously assumed or documented. Data suggest that pavements can oxidize at rates surprisingly uniform with depth once early oxidation occurs, and that these rates continue for an extended time. Laboratory-aged HMAC mixtures and binders were tested and analyzed for fatigue resistance and their rheological properties. Mixture aging shows the same aging mechanisms as neat binder aging. Both binder and mixture have a higher modulus with aging and a good rheological correlation. The decline in mixture fatigue life (determined using the calibrated mechanistic fatigue analysis approach with surface energy measurement) due to oxidation is significant. Pavement service life is dependent on the mixture, but can be estimated by a cumulative damage approach that considers binder oxidation and pavement loading rate simultaneously. The differences in expected pavement life arise from differences in the rate of binder stiffening due to oxidation and the impact of this stiffening on the decline of fatigue life.

Rheology of Crumb Rubber Modified Asphalt Binder and Mixes

Author : Vikas Rameshchandra Sheth
Publisher :
ISBN 13 :
Total Pages : 342 pages
Book Rating : 4.:/5 (394 download)

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Book Synopsis Rheology of Crumb Rubber Modified Asphalt Binder and Mixes by : Vikas Rameshchandra Sheth

Download or read book Rheology of Crumb Rubber Modified Asphalt Binder and Mixes written by Vikas Rameshchandra Sheth and published by . This book was released on 1997 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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:

Influence of Warm Mix Asphalt on Aging of Asphalt Binders

Author : Ala R. Abbas
Publisher :
ISBN 13 :
Total Pages : 99 pages
Book Rating : 4.:/5 (9 download)

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Book Synopsis Influence of Warm Mix Asphalt on Aging of Asphalt Binders by : Ala R. Abbas

Download or read book Influence of Warm Mix Asphalt on Aging of Asphalt Binders written by Ala R. Abbas and published by . This book was released on 2014 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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:

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