Evaluation Of New Innovations In Rubber Modified Asphalt Binders And Rubberized Asphalt Mixes For Nevada Dot
DOWNLOAD
Download Evaluation Of New Innovations In Rubber Modified Asphalt Binders And Rubberized Asphalt Mixes For Nevada Dot PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Evaluation Of New Innovations In Rubber Modified Asphalt Binders And Rubberized Asphalt Mixes For Nevada Dot book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Evaluation Of New Innovations In Rubber Modified Asphalt Binders And Rubberized Asphalt Mixes For Nevada Dot
DOWNLOAD
Author : Mehdi Khalili
language : en
Publisher:
Release Date : 2016
Evaluation Of New Innovations In Rubber Modified Asphalt Binders And Rubberized Asphalt Mixes For Nevada Dot written by Mehdi Khalili and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with Asphalt categories.
The objective of the proposed research project is to determine the feasibility of utilization of laboratory blended ground tire rubber (GTR), terminally-blended GTR following Nevada Department of Transportation's (NDOT’s) specifications, or other crumb-rubber-modified (CRM) products to meet the rheological and engineering properties of asphalt modified binders and mixtures. The test results will be compared to styrene butadiene styrene (SBS) modified binders used in Nevada. The specific objectives of the research project will include the following: (1) Determining initial recommendations for terminally-blended GTR mix design guidelines based on the literature review and basic laboratory test results; (2) Investigating the rheological characteristics of various crumb rubber types (e. g. -30, -40, and terminal blend) at high, intermediate, and low performance temperatures through the performance of American Association of State Highway and Transportation Officials (AASHTO) standards and any other NDOT’s specification requirements; (3) Investigating the effects of various rubber modifiers on NDOT’s mix design including the mix volumetric properties such as air voids, voids in mineral aggregate (VMA), and optimum asphalt binder ratio specifications from AASHTO and NDOT; (4) Determining the Hveem stability, moisture susceptibility, permanent deformation, dynamic modulus, flow number characteristics of various alternate modifiers with hydrated lime in terms of specifications from AASHTO and NDOT; and (5) Developing recommended specifications for Nevada DOT regarding the utilization of these materials.
Asphalt Paving Technology 2011
DOWNLOAD
Author : Eugene L. Skok
language : en
Publisher: DEStech Publications, Inc
Release Date : 2011-06-28
Asphalt Paving Technology 2011 written by Eugene L. Skok and has been published by DEStech Publications, Inc this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-06-28 with Science categories.
Evaluation Of Warm Mix Additives For Use In Modified Asphalt Mixtures
DOWNLOAD
Author : Rukesh Maharjan
language : en
Publisher:
Release Date : 2015
Evaluation Of Warm Mix Additives For Use In Modified Asphalt Mixtures written by Rukesh Maharjan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Electronic books categories.
The purpose of this research effort was to evaluate the use of warm-mix additives with modified (polymer-modified and terminal blend tire rubber) asphalt mixtures from Nevada and California. This research was completed in two stages: Sasobit and Advera were evaluated in first stage while Evotherm and Foaming were evaluated in second stage. The three main components of the experimental plan include: evaluation of mixture resistivity to moisture damage, pavement performance characteristics of the mixtures, and mechanistic analysis of the mixtures for simulated flexible pavement. The moisture resistivity of all mixtures were checked by Indirect Tensile Strength (ITS), and Dynamic Modulus (E*) tests. Dynamic Modulus Ratio (ECR) and Tensile Strength Ratio (TSR) were computed at multiple Freeze-Thaw (F-T) cycles for further evaluation of moisture sensitivity of mixtures. Flow Number (FN) and Flexural beam fatigue tests were conducted to evaluate the performance characteristics of WMA additives/technology. The terminal blend tire rubber-modified binder with lime treatment works effectively in resisting moisture damage, rutting, and to significantly-reasonably improve the fatigue life of the WMA Evotherm, Foaming, Advera and Sasobit mixtures. Hence, it is the best solution for the design and construction of sustainable asphalt pavements. The use of terminal blend rubberized asphalt binder is an excellent and economical selection in reducing tire waste and environmental impacts.
Evaluation Of Hybrid Rubber Modified Asphalt Mixtures And Pavements A Case Study In Virginia
DOWNLOAD
Author : Jhony Habbouche
language : en
Publisher:
Release Date : 2023
Evaluation Of Hybrid Rubber Modified Asphalt Mixtures And Pavements A Case Study In Virginia written by Jhony Habbouche and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023 with Asphalt--Additives categories.
Several state departments of transportation have recognized the benefits of modified asphalt mixtures in resisting multiple modes of climate- and load-induced distresses in flexible pavements. Throughout the past 50 years, asphalt binders have been modified with various components such as styrene-butadiene-styrene (SBS) polymers, ground tire rubber, chemicals (e.g., acid), recycled engine oils, etc., to achieve the desired properties. Hybrid rubber modified asphalt (HRMA) is an innovative engineered additive derived from ground tire rubber, elastomeric SBS polymers, and additive technologies. HRMA is specifically formulated to improve the high temperature stiffness and elastic properties of performance graded binders and the storage stability of modified binders. The purpose of this study was to document and assess HRMA field trials constructed in Virginia. This study documented and evaluated the constructability and laboratory performance of two plant-produced HRMA mixtures compared with the Virginia Department of Transportation (VDOT) typical SBS-modified surface mixtures as reference mixtures. No changes from routine established practices in terms of surface preparation, production at the plant, or paving operations were reported. The four mixtures were evaluated in terms of durability, dynamic modulus, resistance to rutting, and resistance to cracking using multi-level performance tests (basic, intermediate, advanced). All the derived observations indicated that HRMA modification could be as beneficial as regular SBS modification and could provide similar or better performance properties and characteristics for the resultant mixtures. The study recommends that VDOT consider the use of HRMA surface mixtures as an alternative to the current use of regular SBS-modified surface mixtures on higher-volume facilities. Since the sections evaluated in this study were placed in 2021, the 2-year performance data and corresponding observations are still considered preliminary. Continued monitoring of field performance will be needed to quantify any benefit of HRMA mixtures in comparison with regular SBS-modified surface mixtures. The study also recommends additional field trials with HRMA mixtures for further performance evaluation.
Evaluation Of Nevada S Hot Mix Asphalt Mixtures Using Tire Rubber Modified Binders
DOWNLOAD
Author : Haissam K. Sebaaly
language : en
Publisher:
Release Date : 2007
Evaluation Of Nevada S Hot Mix Asphalt Mixtures Using Tire Rubber Modified Binders written by Haissam K. Sebaaly and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Binders (Materials) categories.
Evaluation Of Warm Mix Additives For Use In Modified Asphalt Mixtures
DOWNLOAD
Author : Corina Borroel Wong
language : en
Publisher:
Release Date : 2011
Evaluation Of Warm Mix Additives For Use In Modified Asphalt Mixtures written by Corina Borroel Wong and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Thesis categories.
The intention of this research effort is to evaluate the use of warm mix additives with typical polymer-modified and terminal blend tire rubber asphalt mixtures from Nevada and California. The research effort is broken into three phases that are intended to evaluate the impacts of warm mix additives with typical polymer-modified and terminal blend tire rubber asphalt mixtures from Nevada and California: moisture damage, performance characteristics, and mechanistic analysis. In Phase I of this research effort, mixture resistance to moisture damage was evaluated using the indirect tensile test and the dynamic modulus at multiple freeze-thaw cycles. Laboratory testing was conducted to address the following: (1) the impact of warm mix additive and reduced production temperatures on the moisture damage resistance of asphalt mixtures, (2) the impact of residual aggregate moisture on the moisture damage resistance of WMA mixtures, (3) the impact of warm mix additives on the moisture damage resistance of anti-strip treated WMA mixtures, and (3) the impact of long-term aging on strength gain and the moisture damage resistance of WMA mixtures. A total of one aggregate source, four warm mix asphalt technologies (Advera, Sasobit, Revix and Foaming) and three asphalt binder types (neat, polymer-modified and terminal blend tire rubber modified asphalt binders) typically used in both Nevada and California are being evaluated in this study. This thesis will only summarize the test results and findings of the Phase I of the study for two warm-mix additives: Advera and Sasobit. The evaluation of the other two technologies (i.e. Revix and Foaming) as well as the Phase II testing are still in progress and have not been completed.
Performance Evaluation Of Asphalt Concrete Mixtures Containing Unmodified And Crumb Rubber Modified Asphalt Binders
DOWNLOAD
Author : Gajanan Suresh Natu
language : en
Publisher:
Release Date : 1998
Performance Evaluation Of Asphalt Concrete Mixtures Containing Unmodified And Crumb Rubber Modified Asphalt Binders written by Gajanan Suresh Natu and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Asphalt concrete categories.
Evaluation Of Crumb Rubber Modified Paving Mixtures In The State Of Nevada
DOWNLOAD
Author : Peter E. Sebaaly
language : en
Publisher:
Release Date : 2001
Evaluation Of Crumb Rubber Modified Paving Mixtures In The State Of Nevada written by Peter E. Sebaaly and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Pavements categories.
Evaluation Of Nevada S Warm Mix Asphalt Mixtures With Recycled Asphalt Pavements
DOWNLOAD
Author : Balasekaram Jayaprakas
language : en
Publisher:
Release Date : 2016
Evaluation Of Nevada S Warm Mix Asphalt Mixtures With Recycled Asphalt Pavements written by Balasekaram Jayaprakas and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with Asphalt categories.
The purpose of this study is to evaluate warm mix asphalts (WMA) with recycled asphalt pavement (RAP) from Nevada. For this study, four different warm mix technologies and four different aggregate sources with two different percentages of recycled asphalt binder ratios were used. Aggregates from Lone Mountain, North Tenaya, Spanish Springs and Lockwood were used with appropriate binders for the particular climate conditions in those areas. All the aggregates were lime-marinated, as per requirement of the Nevada Department of Transportation. Advera, Evotherm 3G, Sonnewax and waterfoam were the warm mix technologies evaluated. All four WMA mixtures satisfied all the criteria for resistance to moisture damage with or without RAP for all the aggregate sources used. In terms of fatigue, the WMA mixtures showed better results than the HMA mixture. But for the rutting resistance all of the WMA mixtures showed lower values than the HMA mixtures. This was expected, even though the WMA's rutting resistance improved when RAP was added.
The Laboratory Performance And Aging Characteristics Of Rubber Modified Asphalt Mixture Using A Dry Process
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2020
The Laboratory Performance And Aging Characteristics Of Rubber Modified Asphalt Mixture Using A Dry Process written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with categories.
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.