Effect Of Antistrip Additives On Surface Free Energy Characteristics Of Asphalt Binders For Moisture Induced Damage Potential
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Effect Of Antistrip Additives On Surface Free Energy Characteristics Of Asphalt Binders For Moisture Induced Damage Potential
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Author : NM. Wasiuddin
language : en
Publisher:
Release Date : 2007
Effect Of Antistrip Additives On Surface Free Energy Characteristics Of Asphalt Binders For Moisture Induced Damage Potential written by NM. Wasiuddin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Acids categories.
In this study, the effect of antistrip additives on asphalt binders was evaluated by both laboratory tests and a proposed chemical model of asphalt binder based on the surface free energy characteristics.Two performance graded asphalt binders, namely, PG 64-22 and PG 70-28 and two amine-based liquid antistrip additives, namely, AD-Here HP Plus and Redicote E-6 were evaluated at different percentages (0.25 %, 0.75 %, and 1.5 %) It was found that 1.5 %AD-Here HP Plus and 1.5 % Redicote E-6 increased the total SFE of PG 64-22 by 67 % and 208 %, respectively.Also, the acid components of PG 64-22 and PG 70-28 are 2.9 dyne/cm and 2.5 dyne/cm, respectively, whereas, the corresponding base components are 0.4 dyne/cm for both.With the addition of 1.5 %.Redicote E-6 in PG 64-22, the acid component of the binder reduced by 92 % and the base component of the binder increased by 1141 %.
Testing And Characterization Of Asphalt Materials And Pavement Structures
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Author : Kun Zhang
language : en
Publisher: Springer
Release Date : 2018-07-11
Testing And Characterization Of Asphalt Materials And Pavement Structures written by Kun Zhang and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-11 with Science categories.
This book presents new studies dealing with the attempts made by the scientists and practitioners to address contemporary issues in pavement engineering such as aging and modification of asphalt binders, performance evaluation of warm mix asphalt, and mechanical-based pavement structure analysis, etc.. Asphalt binder and mixture have been widely used to construct flexible pavements. Mechanical and Chemical characterizations of asphalt materials and integration of these properties into pavement structures and distresses analysis are of great importance to design a sustainable flexible pavement. This book includes discusses and new results dealing with these issues. Papers were selected from the 5th GeoChina International Conference 2018 – Civil Infrastructures Confronting Severe Weathers and Climate Changes: From Failure to Sustainability, held on July 23 to 25, 2018 in HangZhou, China.
Proceedings Of Icepp 2021
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Author : Yury Vankov
language : en
Publisher: Springer Nature
Release Date : 2021-08-24
Proceedings Of Icepp 2021 written by Yury Vankov and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-08-24 with Science categories.
This book gathers the latest advances, innovations, and applications in the field of environmental and construction engineering, as presented by international researchers and engineers at the 2nd International Conference on Efficient Production and Processing, held on February 25-26, 2021. It covers highly diverse topics, including use of secondary raw materials in construction technologies; urban waste management logistics; use of recycled materials in road construction; safety and security in waste handling; food science and agriculture; waste and water treatment; and environmental economics. The contributions, which were selected by means of a rigorous international peer-review process, highlight numerous exciting ideas that will spur novel research directions and foster multidisciplinary collaborations.
Advanced Asphalt Materials And Paving Technologies
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Author : Zhanping You
language : en
Publisher: MDPI
Release Date : 2018-05-04
Advanced Asphalt Materials And Paving Technologies written by Zhanping You and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-05-04 with Electronic books categories.
This book is a printed edition of the Special Issue "Advanced Asphalt Materials and Paving Technologies" that was published in Applied Sciences
Analytical Methods In Petroleum Upstream Applications
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Author : Cesar Ovalles
language : en
Publisher: CRC Press
Release Date : 2015-04-02
Analytical Methods In Petroleum Upstream Applications written by Cesar Ovalles and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-04-02 with Science categories.
Effective measurement of the composition and properties of petroleum is essential for its exploration, production, and refining; however, new technologies and methodologies are not adequately documented in much of the current literature. Analytical Methods in Petroleum Upstream Applications explores advances in the analytical methods and instrumentation that allow more accurate determination of the components, classes of compounds, properties, and features of petroleum and its fractions. Recognized experts explore a host of topics, including: A petroleum molecular composition continuity model as a context for other analytical measurements A modern modular sampling system for use in the lab or the process area to collect and control samples for subsequent analysis The importance of oil-in-water measurements and monitoring The chemical and physical properties of heavy oils, their fractions, and products from their upgrading Analytical measurements using gas chromatography and nuclear magnetic resonance (NMR) applications Asphaltene and heavy ends analysis Chemometrics and modeling approaches for understanding petroleum composition and properties to improve upstream, midstream, and downstream operations Due to the renaissance of gas and oil production in North America, interest has grown in analytical methods for a wide range of applications. The understanding provided in this text is designed to help chemists, geologists, and chemical and petroleum engineers make more accurate estimates of the crude value to specific refinery configurations, providing insight into optimum development and extraction schemes.
Solving Pavement And Construction Materials Problems With Innovative And Cutting Edge Technologies
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Author : Zahid Hossain
language : en
Publisher: Springer
Release Date : 2018-07-16
Solving Pavement And Construction Materials Problems With Innovative And Cutting Edge Technologies written by Zahid Hossain and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-16 with Science categories.
This book presents challenges in transportation engineering, recent developments and advancements in technologies, and design and construction using sustainable materials. The articles presented in this volume focus on fundamental investigations on various aspects of civil engineering materials and structures. The scope of this volume is the application of findings for solving problems in geotechnical, pavement, and transportation engineering using emerging techniques. Papers were selected from the 5th GeoChina International Conference 2018 on Civil Infrastructures Confronting Severe Weathers and Climate Changes Conference, held on July 23 to 25, 2018 in HangZhou, China.
Proceedings Of The Fifth International Conference Of Transportation Research Group Of India
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Author : Dharamveer Singh
language : en
Publisher: Springer Nature
Release Date : 2022-05-13
Proceedings Of The Fifth International Conference Of Transportation Research Group Of India written by Dharamveer Singh and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-05-13 with Technology & Engineering categories.
This book (in three volumes) comprises the proceedings of the Fifth Conference of Transportation Research Group of India (CTRG2019) focusing on emerging opportunities and challenges in the field of transportation of people and freight. The contents of the book include characterization of conventional and innovative pavement materials, operational effects of road geometry, user impact of multimodal transport projects, spatial analysis of travel patterns, socio-economic impacts of transport projects, analysis of transportation policy and planning for safety and security, technology-enabled models of mobility services, etc. This book will be beneficial to researchers, educators, practitioners and policymakers alike.
Mechanistic Evaluation Of The Effect Of Wma Additives On Wettability And Moisture Susceptibility Properties Of Asphalt Mixes
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Author : Rouzbeh Ghabchi
language : en
Publisher:
Release Date : 2013
Mechanistic Evaluation Of The Effect Of Wma Additives On Wettability And Moisture Susceptibility Properties Of Asphalt Mixes written by Rouzbeh Ghabchi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with Mix design categories.
This study used a mechanistic framework (i.e., surface free energy) to evaluate the moisture susceptibility of warm mix asphalt (WMA) with three different WMA additives, namely, Sasobit, Advera, and Evotherm. The surface free energy (SFE) components of modified PG64-22 asphalt binder with different percentages of WMA additives and selected aggregates were measured in the laboratory. The wettability, the work of adhesion, the work of debonding, and energy ratios were estimated in order to assess the moisture-induced damage potential of combinations of modified asphalt binders and different aggregates. The results indicate that Sasobit and Advera are able to reduce the moisture susceptibility potential of the mixes, but their use is not recommended with highly acidic aggregates such as granite. Evotherm resulted in the highest increases in wettability, total surface free energy, and increased work of adhesion and a reduction in the work of debonding, resulting in a better possible aggregate coating with asphalt binder and lower moisture susceptibility with all types of tested aggregates relative to those of other WMA additives. Furthermore, tensile strength ratio (TSR) tests were conducted on Advera and Evotherm-modified and neat (unmodified) asphalt mixes, and the results were compared with those from the SFE test. It was found that the SFE approach is a better indicator of moisture susceptibility than the traditional TSR test. The findings of the present study would help the highway engineers and agencies to better understand the moisture damage potential of flexible pavements constructed with WMA technologies.
System For The Evaluation Of Moisture Damage Using Fundamental Material Properties
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Author :
language : en
Publisher:
Release Date : 2007
System For The Evaluation Of Moisture Damage Using Fundamental Material Properties written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Pavements, Asphalt categories.
Laboratory Characterization Of Asphalt Binders Containing A Chemical Based Warm Mix Asphalt Additive
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Author : Shivani Rani
language : en
Publisher:
Release Date : 2020
Laboratory Characterization Of Asphalt Binders Containing A Chemical Based Warm Mix Asphalt Additive written by Shivani Rani and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with Asphalt categories.
Different technologies, namely foamed asphalt, synthetic waxes, zeolites, and chemical additives, are used to produce warm mix asphalt (WMA). This study was undertaken to evaluate the effect of using different amounts of an amine-based chemical WMA additive on the rheology, performance grade (PG), and moisture-induced damage potential of an asphalt binder (PG 58-28). Superpave specifications were used to evaluate the rheological properties and PG of the asphalt binder. Also, a mechanistic approach-based on the surface free energy (SFE) method was used to evaluate the moisture-induced damage potential of the asphalt binder combined with commonly used aggregates in an asphalt mix. It was found that the dynamic viscosity of the asphalt binder was not significantly affected after blending it with the WMA additive. It was also observed that the Superpave high-temperature PG and the rutting factor did not reduce by an increase in the WMA additive content. However, the continuous low-temperature PG of the asphalt binder decreased with an increase in the amount of WMA additive. Furthermore, it was found that the fatigue resistance increased after blending the binder with the WMA additive. The SFE results of the asphalt binder revealed that the WMA additive used in this study reduced the moisture-induced damage potential of the asphalt mixes. However, the extent of this improvement was found to largely depend on the aggregate type. The outcomes of this study are expected to help better understand the influence of amine-based chemical WMA additives on rheological and long-term performance of asphalt mix.