Tensile Strength Of Asphalt Binder And Influence Of Chemical Composition On Binder Rheology And Strength
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Tensile Strength Of Asphalt Binder And Influence Of Chemical Composition On Binder Rheology And Strength
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Author : Sultana Sharmin
language : en
Publisher:
Release Date : 2014
Tensile Strength Of Asphalt Binder And Influence Of Chemical Composition On Binder Rheology And Strength written by Sultana Sharmin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
Asphalt mixtures or asphalt concrete are used to pave about 93% of about 2.6 million miles paved roads and highways in the US. Asphalt concrete is a composite of aggregates and asphalt binder; asphalt binder works as a glue to bind the aggregate particles. The mechanical response of the asphalt binder is dependent on the time/rate of loading, temperature and age. An asphalt concrete mixture inherits most of these characteristics from the asphalt binder. Also the asphalt binder plays a critical role in providing the asphalt concrete the ability to resist tensile stresses and relaxing thermally induced stresses that can lead to fatigue and low temperature cracking, respectively. Hence, it is very important (but not sufficient) to ensure that asphalt binders used in the production of asphalt concrete are inherently resistant to cracking, rutting and other distresses that a pavement may undergo. Current binder specification (AASHTO M-320) to evaluate its fatigue cracking is based on the stiffness of the binder and not on its tensile strength. Also, measurements following current specifications are made on test specimens subjected to a uniaxial mode of loading that does not produce the same stress state in the binder as in the case of asphalt concrete. Another challenge in being able to produce binders with inherently superior performing characteristics is the fact that the asphalt binders produced in a refinery do not have a consistent chemical composition. The chemical composition of asphalt binder depends on the source and refining process of crude oil. There is a need to better quantify the tensile strength of asphalt binder and understand the relationship between the chemical composition of asphalt binders and its mechanical properties. The knowledge from this study can be used to engineer asphalt binders that have superior performance characteristics. The objective of this research was to quantify the tensile strength of asphalt binder, develop a metric for the tensile strength and identify the relationship between chemical composition and mechanical properties of asphalt binder. Laboratory tests were performed on binders of different grades using a poker chip geometry to simulate confined state by varying the film thickness, rate of loading and modes of loading. The chemical properties of asphalt binder were studied based on SARA fractionation. The findings from this research showed that the modified correspondence principles can unify and explain the rate and mode dependency of asphalt binder. This study also quantified the relationship between chemical composition, and rheological and mechanical properties of asphalt binder. Finally, a composite model was developed based on the individual properties of chemical fractions which could predict the dynamic modulus of the asphaltenes doped and resins doped binder.
Physical Properties Of Asphalt Cement Binders
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Author : John C. Hardin
language : en
Publisher: ASTM International
Release Date : 1995
Physical Properties Of Asphalt Cement Binders written by John C. Hardin and has been published by ASTM International this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Asphalt cement categories.
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
Evaluation Of The Effects Of Asphalt Binder On The Properties Of Hot Mix Asphalt At Intermediate Temperatures
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Author : Haifang Wen
language : en
Publisher:
Release Date : 2011
Evaluation Of The Effects Of Asphalt Binder On The Properties Of Hot Mix Asphalt At Intermediate Temperatures written by Haifang Wen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Asphalt categories.
The asphalt binder is an essential component of asphaltic mixtures. The performance of an asphaltic mixture is directly related to mechanical characteristics of the binder. With the development of new material characterization methods for both asphalt binder and asphaltic mixture, there is a need to re-evaluate the relationship between the properties of binders and asphaltic mixtures such that a proper understanding and selection of an asphalt binder can be made to improve the performance of an asphaltic mixture. In this study, the effects of asphalt binder properties on asphaltic mixtures at intermediate temperatures were evaluated based on recent developments on material characterization methods for both binder and asphaltic mixture. Five asphalt binders and five asphalt mixtures containing these binders with one aggregate were tested. Four of the binders were based on a modification of a base binder with different techniques. Complex shear modulus and monotonic constant shear-rate tests were conducted on asphalt binders, whereas dynamic modulus and indirect tensile strength tests were conducted on the mixtures. The effects of modification techniques on the properties of asphalt binders and the relationships between the properties of binders and asphaltic mixtures were evaluated in this study.
Binder Characterization And Evaluation Test Methods
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Author :
language : en
Publisher:
Release Date : 1994
Binder Characterization And Evaluation Test Methods written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Asphalt categories.
An Evaluation Of The Tensile Strength Of Asphalt Binder And Mortar With Recycled Asphalt Additives At Low Temperatures
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Author : Rogelio Gabriel Rodriguez
language : en
Publisher:
Release Date : 2017
An Evaluation Of The Tensile Strength Of Asphalt Binder And Mortar With Recycled Asphalt Additives At Low Temperatures written by Rogelio Gabriel Rodriguez and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.
A standard grading system is used to evaluate the properties and expected performance of an asphalt binder. The most common grading system used in the US today is the performance grading (PG) system. This system prescribes an operational temperature range within which the binder is expected to perform satisfactorily without resulting in rutting, fatigue cracking or thermal cracking as a distress. On the low-temperature and thermal cracking end, this system uses both a metric related to stiffness and rate of relaxation (m-value) to establish a low temperature grade for a given asphalt binder. Although these parameters provide some information on the rate of relaxation and overall rigidity of the asphalt binder they don’t include an evaluation of the tensile strength of the asphalt binder. The tensile strength of the binder can furnish critical information about its resistance to cracking including thermal cracking. The asphalt industry has become particularly interested in the impact of recycled asphalt pavement (RAP) and additives such as rejuvenators on the behavior and performance of the material. The goal of this study was to evaluate the tensile strength characteristics of asphalt binders and composites in addition to their stiffness characteristics. The study was conducted in three parts: (1) the evaluation of tensile strength of asphalt binders with similar performance grades, (2) the evaluation of tensile strength of asphalt binders as a function of the amount of recycled asphalt binder added to the virgin binder, and (3) the influence of recycled asphalt and rejuvenators on the stiffness and tensile strength of asphalt mortars. In addition to these three objectives, this study also developed simplified methods to prepare and evaluate the tensile strength of asphalt binders and mortars as a material characterization tool to screen or evaluate the efficacy of RAP, rejuvenators, and other additives. Results show that similarly graded binders have a significant variability both in terms of their stiffness and strength and that rejuvenators can be used with RAP to achieve a balance of stiffness and strength.
Binder Characterization And Evaluation
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Author : David A. Anderson
language : en
Publisher: Strategic Highway Research Program (Shrp)
Release Date : 1994
Binder Characterization And Evaluation written by David A. Anderson and has been published by Strategic Highway Research Program (Shrp) this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Technology & Engineering categories.
Polymer Modified Asphalt Binders
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Author : Kenneth R. Wardlaw
language : en
Publisher: ASTM International
Release Date : 1992
Polymer Modified Asphalt Binders written by Kenneth R. Wardlaw and has been published by ASTM International this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Asphalt categories.
"ASTM Publication Code Number (PCN) 04-011080-08. - "Sponsored by ASTM Committee D-4 on Road and Paving Materials."-- Foreword. - Includes bibliographical references and indexes. - Electronic reproduction; W. Conshohocken, Pa; ASTM International; 2011; Mode of access: World Wide Web; System requirements: Web browser; Access may be restricted to users at subscribing institutions.
Binder Characterization And Evaluation
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Author : Peterson
language : en
Publisher: Strategic Highway Research Program (Shrp)
Release Date : 1994
Binder Characterization And Evaluation written by Peterson and has been published by Strategic Highway Research Program (Shrp) this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Technology & Engineering categories.
This final report, in four volumes, of Strategic Highway Research Program (SHRP) Project A-002A describes intensive investigations of the chemical and physical properties of petroleum asphalts used in the construction of highway pavements. The model and predictive capability constitute the major portion of volume 1.
Shell Bitumen Handbook
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Author : Robert Hunter
language : en
Publisher: ICE Publishing
Release Date : 2015-01-28
Shell Bitumen Handbook written by Robert Hunter and has been published by ICE Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-01-28 with Technology & Engineering categories.
Shell has been at the forefront of bitumen technology for over 90 years, and continues to play a leading role in global bitumen research and development. The Shell Bitumen Handbook is an authoritative source of information on bitumen use in road pavements around the world.
Characteristics Of Asphalt Binders
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Author :
language : en
Publisher:
Release Date : 1996
Characteristics Of Asphalt Binders written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Asphalt categories.