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Novel Parametric Approach To Characterize Crumb Rubber Modified Asphalt Binder Performance Based On Parallel Plate Dynamic Shear Rheometry
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Book Synopsis Novel Parametric Approach to Characterize Crumb Rubber Modified Asphalt Binder Performance Based on Parallel Plate Dynamic Shear Rheometry by : Anas Ahmad Jamrah
Download or read book Novel Parametric Approach to Characterize Crumb Rubber Modified Asphalt Binder Performance Based on Parallel Plate Dynamic Shear Rheometry written by Anas Ahmad Jamrah and published by . This book was released on 2018 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the 9th International Conference on Maintenance and Rehabilitation of Pavements—Mairepav9 by : Christiane Raab
Download or read book Proceedings of the 9th International Conference on Maintenance and Rehabilitation of Pavements—Mairepav9 written by Christiane Raab and published by Springer Nature. This book was released on 2020-06-19 with total page 955 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers the proceedings of an international conference held at Empa (Swiss Federal Laboratories for materials Science and Technology) in Dübendorf, Switzerland, in July 2020. The conference series was established by the International Society of Maintenance and Rehabilitation of Transport Infrastructure (iSMARTi) for promoting and discussing state-of-the-art design, maintenance, rehabilitation and management of pavements. The inaugural conference was held at Mackenzie Presbyterian University in Sao Paulo, Brazil, in 2000. The series has steadily grown over the past 20 years, with installments hosted in various countries all over the world. The respective contributions share the latest insights from research and practice in the maintenance and rehabilitation of pavements, and discuss advanced materials, technologies and solutions for achieving an even more sustainable and environmentally friendly infrastructure.
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:
Book Synopsis Grade Determination of Crumb Rubber-modified Performance Graded Asphalt Binder by : Thomas Bennert
Download or read book Grade Determination of Crumb Rubber-modified Performance Graded Asphalt Binder written by Thomas Bennert and published by . This book was released on 2013 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to particulates common in crumb rubber-modified asphalt binders, conventional PG grading using the Dynamic Shear Rheometer (DSR) with a gap height of 1.0 mm may not be valid and in accordance with current specifications. Asphalt binder testing and mixture testing was conducted on binders with and without crumb rubber modification to determine an asphalt binder test method which best matches the mixture performance. It was determined that the Multiple Stress Creep Recovery (MSCR) test, conducted with a gap height of 2.0 mm and at in-service temperatures, best correlated with Flow Number testing in the Asphalt Mixture Performance Tester (AMPT). This relationship was found to be better than that of the current DSR test procedure for high temperature PG grading.
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:
Book Synopsis Characterization of Simple and Complex Crumb Rubber Modified Binders by : Ssu-Wei Loh
Download or read book Characterization of Simple and Complex Crumb Rubber Modified Binders written by Ssu-Wei Loh and published by . This book was released on 2000 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Crumb Rubber Particle Size and Concentration on Performance Grading of Rubber Modified Asphalt Binders by : GA. Malpass
Download or read book Effect of Crumb Rubber Particle Size and Concentration on Performance Grading of Rubber Modified Asphalt Binders written by GA. Malpass and published by . This book was released on 1997 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study evaluates two aspects of the performance related SuperpaveTM binder specification methodology: 1) the applicability of the dynamic shear rheometer (DSR) to crumb rubber modified binders, and 2) the effect of crumb rubber particle size and concentration on the higher temperature performance grading of rubber modified asphalt binders.
Book Synopsis Validation of Applicability of Superpave [small Capitals TM] Binder Test Protocol for Performance Grading of Crumb Rubber Modified Asphalt Binder by : Akhtarhusein Asgarali Tayebali
Download or read book Validation of Applicability of Superpave [small Capitals TM] Binder Test Protocol for Performance Grading of Crumb Rubber Modified Asphalt Binder written by Akhtarhusein Asgarali Tayebali and published by . This book was released on 1997 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this study was to verify the applicability of the Superpave test protocol to modified asphalt binders. The study was conducted using crumb rubber (40-mesh coarse graded and 80-mesh fine graded) modified asphalt binders.
Book Synopsis Advanced Characterization of Crumb Rubber Modified Asphalts Using Protocols Developed for Complex Binders by : Sohee Kim (Research assistant)
Download or read book Advanced Characterization of Crumb Rubber Modified Asphalts Using Protocols Developed for Complex Binders written by Sohee Kim (Research assistant) and published by . This book was released on 2000 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rheological and Rutting Characterization of Asphalt Mixes with Modified Binders by : S. Anjan kumar
Download or read book Rheological and Rutting Characterization of Asphalt Mixes with Modified Binders written by S. Anjan kumar and published by . This book was released on 2012 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper presents the results of investigations on the rheological properties of modified asphalt binders and their influence on the performance of asphalt mixes. Asphalt mixes with modified binders such as styrene butadiene styrene polymer, crumb rubber, natural rubber, and waste plastics were evaluated for their rheological properties and compared to the properties of asphalt mixes with unmodified VG30 (viscosity grade) asphalt binder. The dynamic modulus values and rutting characteristics of the asphalt mixes were studied with due consideration to different levels of aging and temperature variations. Studies on the rheological properties showed that the energy dissipated by unmodified asphalt (VG30) binder is higher than that of modified asphalt binders. Long-term aged natural rubber and waste plastic modified asphalt binders showed significant increase in the properties compared to unmodified asphalt binder (VG30). Reduced temperature susceptibility of polymer modified asphalt binder showed that only polymer modification can enhance both high temperature rutting resistance and low temperature thermal cracking resistance of asphalt mixes. The transient nature of polymer modified asphalt mix from viscoelastic solid-like to viscoelastic fluid-like condition is significantly shifted to higher temperature compared to that of the mix with unmodified asphalt binder. Aging and rutting indices showed that rubber modified asphalt mixes are highly susceptible to aging. Statistical analysis of test results showed that the process of modification of asphalt binder, aging, and temperature during the test influence the rheological and rutting characteristics of asphalt mixes significantly. Correlation between the asphalt binder properties and its influence on the rutting resistance are found to be statistically significant. The analysis using least significant difference showed that polymer modified asphalt binder significantly improves the aging and rutting resistance of asphalt mixes compared to unmodified asphalt binder.
Book Synopsis Mixture Desigh [sic] and Performance Prediction of Rubber-modified Asphalt in Ohio by : Robert Y. Liang
Download or read book Mixture Desigh [sic] and Performance Prediction of Rubber-modified Asphalt in Ohio written by Robert Y. Liang and published by . This book was released on 1998 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: The mixture design and performance characteristics of crumb rubber modified asphalt concretes were investigated in this research project to meet the requirements of the Intermodal Surface Transportation Efficiency Act (ISTEA) of 1991, which has required each State to incorporate scrap tire rubber into its asphalt paving materials. Specifically, the objectives of this research encompass the following: (i) investigation of the rheological properties of asphalt-rubber binder to determine optimum content of crumb rubber; (ii) development of optimum mix design for various applications, including both wet and dry mix processes; (iii) characterization of mechanical properties of recommended paving mixtures, including resilient modulus, fatigue cracking behavior, low-temperature thermal cracking resistance, water sensitivity test, incremental creep test and loaded wheel track test; and (iv) comparison of performance of selected paving mixes.
Book Synopsis High-Temperature Performance and Workability of Crumb Rubber-Modified Warm-Mix Asphalt by : Hainian Wang
Download or read book High-Temperature Performance and Workability of Crumb Rubber-Modified Warm-Mix Asphalt written by Hainian Wang and published by . This book was released on 2020 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crumb rubber produced from scrap tires has been widely applied in asphalt mixtures to improve the pavement performance. Warm-mix technology has also been employed to lower the production temperature of asphalt mixtures. The objective of this article is to investigate the effects of warm-mix additive types and crumb rubber concentration on the resistance to deformation of crumb rubber-modified (CRM) binders through the repeated creep and recovery test (RCRT), dynamic shear rheometer (DSR), and rotational viscosity test. The CRM binders with crumb rubber concentrations of 10 %, 15 %, 20 %, and 25 % were prepared first as the control binders. Then, three types of warm-mix additives, Sasobit, RH, and Advera, were added into the CRM asphalt to produce CRM warm-mix asphalt (WMA) binder. Generally, the workability of CRM asphalt can be improved with the addition of warm-mix additives. The effect of warm-mix additive on the high-temperature performance is highly dependent on the crumb rubber dosage. The RCRT results overall showed that the warm-mix additives can improve the high-temperature performance of asphalt when the crumb rubber concentration is low. However, according to the DSR test, Sasobit improved the rutting resistance of CRM asphalt, while the RH and Advera sacrificed the rutting resistance. The inconsistency between the RCRT and DSR results suggests that it may be necessary to conduct both the tests when investigating the high-temperature performance of CRM asphalt with warm-mix additives.
Book Synopsis Dynamic Shear Rheometer Testing of Asphalt Binder Using 4 Mm Parallel Plate Geometry at Low Temperature by : Tess Sigwarth
Download or read book Dynamic Shear Rheometer Testing of Asphalt Binder Using 4 Mm Parallel Plate Geometry at Low Temperature written by Tess Sigwarth and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Asphalt Binder Testing Using 4 Mm Parallel Plate Geometry of Dynamic Shear Rheometer by : Johannes Büchner
Download or read book Asphalt Binder Testing Using 4 Mm Parallel Plate Geometry of Dynamic Shear Rheometer written by Johannes Büchner and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Understanding the Performance of Modified Asphalt Binders in Mixtures by : Kevin D. Stuart
Download or read book Understanding the Performance of Modified Asphalt Binders in Mixtures written by Kevin D. Stuart and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall objective of this study was to determine if the Superpave high-temperature rheological properties of polymer-modified asphalt binders correlate to asphalt mixture rutting resistance. An emphasis was placed on evaluating polymer-modified asphalt binders with identical (or close) high-temperature performance grades (PG's), but varied polymer chemistries. Eleven asphalt binders were obtained for this study: two unmodified asphalt binders, an air-blown asphalt binder, and eight polymer-modified asphalt binders. High-temperature asphalt binder properties were measured by a dynamic shear rheometer (DSR). Mixture rutting resistance was measured by repeated shear at constant height (RSCH), and the French Pavement Rutting Tester (French PRT). The first objective was to verify the findings of a previous study using a different aggregate. In the previous study, it was found that the Superpave high-temperature asphalt binder properties correlated to mixture rutting resistance with few outliers, and a change in high-temperature PG from 70 to 76 increased rutting resistance. However, the correlation between RSCH and asphalt binder G*/sind (delta) depended on DSR frequency. The data suggested that a low DSR frequency, such as 0.1 rad/s, might provide a better grading system than the standard DSR frequency of 10.0 rad/s. This would require a change in the current asphalt binder specification. A diabase aggregate was used in a previous study. The data using a second aggregate, a limestone aggregate, in combination with four of the asphalt binders, agreed with the findings from the diabase mixtures. The second objective was to retest the diabase mixtures at 70 degrees Celsius using RSCH. The test temperatures used in the previous study were 50 degrees Celsius for RSCH and 70 degrees Celsius for the French PRT. The polymer-modified asphalt binders had continuous high-temperature PG's ranging from 71 to 77. Therefore, it was recommended that the test temperature for RSCH be increased to 70 degrees Celsius. Again, the correlation between RSCH and G*/sind was dependent on DSR frequency. The data suggested that a low DSR frequency, such as 0.1 rad/s, might provide a better grading system. However, it is not known whether this finding applies to pavements, or is related to the accelerated nature of the RSCH test. Furthermore, G*/sind (delta) at 0.1 rad/s did not clearly provide a better correlation to RSCH than the high-temperature PG's of the asphalt binders. The degree of correlation between the French PRT and G*/sind at 70 degrees Celsius did not depend on DSR frequency, and there was only one outlier. A correlation between the French PRT and high-temperature PG provided no obvious outliers. No changes to the specification are recommended based on the French PRT results.
Book Synopsis A Novel Approach to Understanding Asphalt Binder Aging Behavior Using Asphaltene Proportion as a Performance Indicator by : Yogesh Shamsunder Kumbargeri
Download or read book A Novel Approach to Understanding Asphalt Binder Aging Behavior Using Asphaltene Proportion as a Performance Indicator written by Yogesh Shamsunder Kumbargeri and published by . This book was released on 2015 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main objective of this research study was to formulate and deduce aging indices and parametric models with asphaltene as a performance indicator using virgin and modified asphalt binders. The estimated asphaltene content of binders increased from unaged to short-term and subsequently to long-term aged condition. Also, modified binders had higher asphaltene contents than virgin binders. Asphaltene content was found to be a truly valuable aging performance assessor to investigate asphalt binder aging characteristics in a rational manner. Asphalt aging parametric models were developed using asphaltene content and fundamental binder properties, which were mathematically robust. The parametric models precisely predicted rational aging performance of asphalt binders at different aging combinations. A final binder aging predictive model was recommended that relates short- and long-term aging conditions, which had excellent rational correlations. A novel approach was taken in this study that synergized asphalt binder rheological properties and aging performance criteria specifically incorporating asphaltene, which is a chemical parametric indicator pertinent to asphalt aging characterization and evaluation.
Book Synopsis Characterization of Modified Asphalt Binders in Superpave Mix Design by : Hussain U. Bahia
Download or read book Characterization of Modified Asphalt Binders in Superpave Mix Design written by Hussain U. Bahia and published by . This book was released on 2001 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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