Evaluation Of The Effects Of Aging On Asphalt Rubber

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Evaluation of the Effects of Aging on Asphalt Rubber

Author : Jordan Reed
Publisher :
ISBN 13 :
Total Pages : 108 pages
Book Rating : 4.:/5 (81 download)

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Book Synopsis Evaluation of the Effects of Aging on Asphalt Rubber by : Jordan Reed

Download or read book Evaluation of the Effects of Aging on Asphalt Rubber written by Jordan Reed and published by . This book was released on 2010 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oxidative aging is an important factor in the long term performance of asphalt pavements. Oxidation and the associated stiffening can lead to cracking, which in turn can lead to the functional and structural failure of the pavement system. Therefore, a greater understanding of the nature of oxidative aging in asphalt pavements can potentially be of great importance in estimating the performance of a pavement before it is constructed. Of particular interest are the effects of aging on asphalt rubber pavements, due to the fact that, as a newer technology, few asphalt rubber pavement sections have been evaluated for their full service life. This study endeavors to shed some light on this topic.

Evaluation of the Effect of Oxidative Aging on Asphalt Mixtures for Pavement Performance Prediction

Author : Farhad Yousefi Rad
Publisher :
ISBN 13 :
Total Pages : 255 pages
Book Rating : 4.:/5 (12 download)

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Book Synopsis Evaluation of the Effect of Oxidative Aging on Asphalt Mixtures for Pavement Performance Prediction by : Farhad Yousefi Rad

Download or read book Evaluation of the Effect of Oxidative Aging on Asphalt Mixtures for Pavement Performance Prediction written by Farhad Yousefi Rad and published by . This book was released on 2018 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Characteristics of Asphalt Binders

Author :
Publisher :
ISBN 13 :
Total Pages : 144 pages
Book Rating : 4.3/5 ( download)

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Book Synopsis Characteristics of Asphalt Binders by :

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:

Evaluation of Short Term Aging Effect of Hot Mix Asphalt Due to Elevated Temperatures and Extended Aging Time

Author : Rubben Lolly
Publisher :
ISBN 13 :
Total Pages : 97 pages
Book Rating : 4.:/5 (864 download)

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Book Synopsis Evaluation of Short Term Aging Effect of Hot Mix Asphalt Due to Elevated Temperatures and Extended Aging Time by : Rubben Lolly

Download or read book Evaluation of Short Term Aging Effect of Hot Mix Asphalt Due to Elevated Temperatures and Extended Aging Time written by Rubben Lolly and published by . This book was released on 2013 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heating of asphalt during production and construction causes the volatilization and oxidation of binders used in mixes. Volatilization and oxidation causes degradation of asphalt pavements by increasing the stiffness of the binders, increasing susceptibility to cracking and negatively affecting the functional and structural performance of the pavements. Degradation of asphalt binders by volatilization and oxidation due to high production temperature occur during early stages of pavement life and are known as Short Term Aging (STA). Elevated temperatures and increased exposure time to elevated temperatures causes increased STA of asphalt. The objective of this research was to investigate how elevated mixing temperatures and exposure time to elevated temperatures affect aging and stiffening of binders, thus influencing properties of the asphalt mixtures. The study was conducted in two stages. The first stage evaluated STA effect of asphalt binders. It involved aging two Performance Graded (PG) virgin asphalt binders, PG 76-16 and PG 64-22 at two different temperatures and durations, then measuring their viscosities. The second stage involved evaluating the effects of elevated STA temperature and time on properties of the asphalt mixtures. It involved STA of asphalt mixtures produced in the laboratory with the PG 64-22 binder at mixing temperatures elevated 25OF above standard practice; STA times at 2 and 4 hours longer than standard practices, and then compacted in a gyratory compactor. Dynamic modulus (E*) and Indirect Tensile Strength (IDT) were measured for the aged mixtures for each temperature and duration to determine the effect of different aging times and temperatures on the stiffness and fatigue properties of the aged asphalt mixtures. The binder test results showed that in all cases, there was increased viscosity. The results showed the highest increase in viscosity resulted from increased aging time. The results also indicated that PG 64-22 was more susceptible to elevated STA temperature and extended time than the PG 76-16 binders. The asphalt mixture test results confirmed the expected outcome that increasing the STA and mixing temperature by 25oF alters the stiffness of mixtures. Significant change in the dynamic modulus mostly occurred at four hour increase in STA time regardless of temperature.

Evaluation of Aging Characteristics of Modified Asphalt Mixtures

Author : S-C Huang
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (125 download)

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Book Synopsis Evaluation of Aging Characteristics of Modified Asphalt Mixtures by : S-C Huang

Download or read book Evaluation of Aging Characteristics of Modified Asphalt Mixtures written by S-C Huang and published by . This book was released on 1995 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: A laboratory investigation using typical Florida dense-graded and open-graded mixtures was conducted to evaluate the effects of a few promising modifiers on the long-term aging characteristics of asphalt mixtures. Six types of modifiers including gilsonite, carbon black, fine ground tire rubber (GTR-80), styrene-butylene-rubber (SBR), ethylene vinyl acetate (EVA) and styrene-ethylene-butylene-styrene (SEBS) were used in this study. These modifiers were blended with AC-30, AC-20, and AC-5 base asphalts to produce a total of ten modified asphalts. These ten modified asphalt blends and the unmodified AC-30 were used to make Florida type S-1 structural course and type FC-2 friction course asphalt mixtures. These mixtures were compacted into Marshall specimens for age hardening and subsequent testing. A total of 416 compacted modified and unmodified asphalt mixture specimens were subjected to a forced-draft oven aging process for 90 days at 60 °C (140 °F), and natural sunlight for 6 months to simulate the long-term aging effects on these mixtures. These aged and unaged asphalt mixtures were evaluated by (1) resilient modulus tests at 5 and 25 °C (41 and 77 °F) and (2) indirect tensile tests at 5 and 25 °C (41 and 77 °F). The effects of cycle frequency used in the resilient modulus tests were also assessed. The test results indicate that the modified asphalt mixtures appear to have more pronounced delayed elastic behavior as compared with that of the unmodified asphalt mixtures. The fracture energy, which is characterized by means of the area of stress-strain curve, indicated that the modified binders using a base asphalt of AC-30 tend to be too brittle as they harden further with time. However, modified binders using a base asphalt of AC-5 appear to be softer than that of conventional AC-30 under typical Florida conditions.

Special Report

Author :
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Special Report by :

Download or read book Special Report written by and published by . This book was released on 1991 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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:

Effect of Moisture and Aging on Asphalt Pavement Life: Effect of aging

Author :
Publisher :
ISBN 13 :
Total Pages : 84 pages
Book Rating : 4.3/5 (555 download)

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Book Synopsis Effect of Moisture and Aging on Asphalt Pavement Life: Effect of aging by :

Download or read book Effect of Moisture and Aging on Asphalt Pavement Life: Effect of aging written by and published by . This book was released on 1986 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

THE LABORATORY PERFORMANCE AND AGING CHARACTERISTICS OF RUBBER MODIFIED ASPHALT MIXTURE USING A DRY PROCESS

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (119 download)

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Book Synopsis THE LABORATORY PERFORMANCE AND AGING CHARACTERISTICS OF RUBBER MODIFIED ASPHALT MIXTURE USING A DRY PROCESS by :

Download or read book THE LABORATORY PERFORMANCE AND AGING CHARACTERISTICS OF RUBBER MODIFIED ASPHALT MIXTURE USING A DRY PROCESS written by and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract : The accumulation of waste tires generates severe environmental issues. Using crumb rubber processed from waste tires on the pavement could relieve the pressure of waste tire on the environment and improve the performance of the pavement as well. The application of crumb rubber on the pavement using the dry process was proved to be a cost-effective strategy in some projects, however, the interaction between the rubber and asphalt binder was unknown in the rubber modified asphalt mixture using the dry process, especially when reclaimed asphalt pavement was adopted. The performance improvement of the rubber particle to the asphalt mixture was closely related to the interaction. The influence of aging on the characteristics of rubber modified asphalt mixture using the dry process is critical to its long-term performance. The scope of the dissertation is to evaluate the performance of rubber modified asphalt mixture using a dry process when reclaimed asphalt pavement was adopted. The influence of aging on the characteristics of the rubber modified asphalt mixture and the extracted asphalt binder were investigated. This dissertation proposed the volumetric design of rubber modified asphalt mixture using the dry process. The aggregate gradation determination, rubber modified asphalt mixture preparation, design binder content determination, and moisture susceptibility evaluation were proposed. The quality control of the laboratory mixture design procedure was critical to guarantee the consistency of the asphalt mixture design in the laboratory and the results of mixture construction in the plant. The high temperature rutting performance and the low temperature cracking performance of plant mixed and laboratory compacted asphalt mixture was evaluated. The influence of various factors, which included mixture design parameters of the asphalt mixture (nominal maximum aggregate size, reclaimed asphalt pavement content, and asphalt content), rubber modification, mixture air void content, test temperature, and aging procedure, on the rutting and low temperature characteristics of asphalt mixtures were evaluated. Based on the evaluation of different assessment parameters, the rubber addition and the rubber addition and aging were the two most critical factors that influenced the rutting and low temperature cracking performance of different asphalt mixtures. The effect of the Trichloroethylene solvent in asphalt binder was investigated, and the extracted asphalt binder was assessed and compared with the base asphalt binder and rubber modified base asphalt binder. Both the existence of Trichloroethylene and the content of Trichloroethylene had a significant influence on the |G*| of unaged and PAV aged asphalt binder. The Trichloroethylene in the extracted asphalt binder significantly influenced the actual performance of the asphalt binder in the reclaimed asphalt binder, thus potentially compromising the success mixture design. The modified extraction procedure was proposed to improve the accuracy of the extraction procedure. The rubber particles in the asphalt mixture using the dry process were not totally interacted with asphalt binder, only the interacted rubber particles were extracted, and the influence of the interacted rubber particle was assessed. The aged asphalt binder weakened the low temperature performance of the extracted asphalt binder. The aged asphalt binder and rubber in extracted asphalt binder guaranteed the asphalt binder to sustain heavy traffic load, thus improved the permanent deformation resistance of asphalt binder.

Rapport over de economische toestand van Engeland sedert het loslaten van de gouden standaard

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (688 download)

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Book Synopsis Rapport over de economische toestand van Engeland sedert het loslaten van de gouden standaard by :

Download or read book Rapport over de economische toestand van Engeland sedert het loslaten van de gouden standaard written by and published by . This book was released on 1935* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Proceedings of the Sixth International Conference of Transportation Research Group of India

Author : Lelitha Devi
Publisher : Springer Nature
ISBN 13 : 981193505X
Total Pages : 381 pages
Book Rating : 4.8/5 (119 download)

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Book Synopsis Proceedings of the Sixth International Conference of Transportation Research Group of India by : Lelitha Devi

Download or read book Proceedings of the Sixth International Conference of Transportation Research Group of India written by Lelitha Devi and published by Springer Nature. This book was released on 2022-09-18 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprises the proceedings of the Sixth International Conference of Transportation Research Group of India (CTRG2021) focusing on emerging opportunities and challenges in the field of transportation of people and freight. The contents of the volume include recent advancements in the pavements and materials study like Fatigue damage, Moisture damage prediction, Quantification of Aging of Polymer, and Effect of short-term aging. It also covers rapidly evolving topics like Road network analysis, Location choice analysis for Transit-Oriented Development (TOD), Transit ridership, etc. This book will be beneficial to researchers, educators, practitioners, and policymakers alike.

Evaluation of the Effects of Air Voids and Effective Asphalt Content on Age Hardening of Asphalt Concrete Mixtures

Author : Carla J. Schilling
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (391 download)

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Book Synopsis Evaluation of the Effects of Air Voids and Effective Asphalt Content on Age Hardening of Asphalt Concrete Mixtures by : Carla J. Schilling

Download or read book Evaluation of the Effects of Air Voids and Effective Asphalt Content on Age Hardening of Asphalt Concrete Mixtures written by Carla J. Schilling and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Evaluation of the Effects of Rubber in the Form of Fragmented Tires as an Additive to Bituminous Pavement Mixtures

Author : Wisconsin. Division of Highways. Materials Section. Research Unit
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (84 download)

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Book Synopsis Evaluation of the Effects of Rubber in the Form of Fragmented Tires as an Additive to Bituminous Pavement Mixtures by : Wisconsin. Division of Highways. Materials Section. Research Unit

Download or read book Evaluation of the Effects of Rubber in the Form of Fragmented Tires as an Additive to Bituminous Pavement Mixtures written by Wisconsin. Division of Highways. Materials Section. Research Unit and published by . This book was released on 1973 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Bituminous Mixtures and Pavements VII

Author : A.F. Nikolaides
Publisher : CRC Press
ISBN 13 : 1351063251
Total Pages : 716 pages
Book Rating : 4.3/5 (51 download)

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

Download or read book Bituminous Mixtures and Pavements VII written by A.F. Nikolaides and published by CRC Press. This book was released on 2019-05-24 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt: Highway engineers are facing the challenge not only to design and construct sustainable and safe pavements properly and economically. This implies a thorough understanding of materials behaviour, their appropriate use in the continuously changing environment, and implementation of constantly improved technologies and methodologies. Bituminous Mixtures and Pavements VII contains more than 100 contributions that were presented at the 7th International Conference ‘Bituminous Mixtures and Pavements’ (7ICONFBMP, Thessaloniki, Greece 12-14 June 2019). The papers cover a wide range of topics: - Bituminous binders - Aggregates, unbound layers and subgrade - Bituminous mixtures (Hot, Warm and Cold) - Pavements (Design, Construction, Maintenance, Sustainability, Energy and environment consideration) - Pavement management - Pavement recycling - Geosynthetics - Pavement assessment, surface characteristics and safety - Posters Bituminous Mixtures and Pavements VII reflects recent advances in highway materials technology and pavement engineering, and will be of interest to academics and professionals interested or involved in these areas.

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:

Engineering Properties of Asphalt Mixtures and the Relationship to Their Performance

Author : Gerald A. Huber
Publisher : ASTM International
ISBN 13 : 0803120028
Total Pages : 237 pages
Book Rating : 4.8/5 (31 download)

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Book Synopsis Engineering Properties of Asphalt Mixtures and the Relationship to Their Performance by : Gerald A. Huber

Download or read book Engineering Properties of Asphalt Mixtures and the Relationship to Their Performance written by Gerald A. Huber and published by ASTM International. This book was released on 1995 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thirteen papers presented at the conference on [title], held in Phoenix, Arizona, December, 1994, discuss the products of the strategic highway research program, the Superpave method of mix design, and test methods for fatigue cracking and permanent deformation. Lacks an index. Annotation c. by Book

Advanced Topics in Mechanics of Materials, Structures and Construction

Author : Erasmo Carrera
Publisher : Materials Research Forum LLC
ISBN 13 : 1644902583
Total Pages : 833 pages
Book Rating : 4.6/5 (449 download)

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Book Synopsis Advanced Topics in Mechanics of Materials, Structures and Construction by : Erasmo Carrera

Download or read book Advanced Topics in Mechanics of Materials, Structures and Construction written by Erasmo Carrera and published by Materials Research Forum LLC. This book was released on 2023-09-01 with total page 833 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents 81 papers referring to the properties and applications of technologically important materials. Topics covered include material characterization, environmental impact, probabilistic assessment, failure analysis, vibration analysis, AI-based predictions, conceptual models, thermo-mechanical properties, numerical models, design and simulation, industrial performance and failure analysis. Keywords: Laminated Sandwich Shell, Polymer Nanocomposite, Cellular Glass Foam, Porous Spherical Shells, Cracks Between Dissimilar Materials, Soil Stabilization, Dynamic Strain Aging, Composite Plates, Recycled Concrete Aggregates, Preparation & Characterization of Nanoparticles, Auxetic Materials, Biomechanical Model, Cellular Lightweight Concrete, Thermoplastic Materials, Powder Metal Gears, Fibre Reinforced Concrete, Adhesively Bonded Composites, Solar PV Power, Kirigami Folded Structures, Steel Fibres, Solar Panels, Electric Discharge Machining, Energy Harvesting, Energy Conversion, Glass/Epoxy Pipe, Manufacturing Strategy, Additive Manufacturing, Fibre-Reinforced Aluminum, Telescopic Paraboloidal Solar Concentrator, Energy Storage, Machining Waste Fibers, Numerical Simulation, Foam Concrete, Heat Exchangers, Nanofluids, Spherical Cavity Explosion, Cross-Ply Structure, Reinforced Concrete Walls, Artificial Intelligence, l-shaped Metamaterials, Sand-Bentonite Liners, Layered Composite Arches, Stitched Sandwich Structures, Semilinear Hyperelastic Solids, Filament Fabrication, Polyethylene Bottles, Spherical Shells, Steel Boiler Tub, Mortars, 3D Printing, Electromagnetic Forming.