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Evaluation Of New Shrp Performance Related Tests For Asphalt Binders And Modified Asphalt Binders Used In Florida
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Book Synopsis Evaluation of New SHRP Performance-related Tests for Asphalt Binders and Modified Asphalt Binders Used in Florida by : Patrick Bryan Upshaw
Download or read book Evaluation of New SHRP Performance-related Tests for Asphalt Binders and Modified Asphalt Binders Used in Florida written by Patrick Bryan Upshaw and published by . This book was released on 1994 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Masters Theses in the Pure and Applied Sciences by : Wade H. Shafer
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS)* at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dis semination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volumes were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 39 (thesis year 1994) a total of 13,953 thesis titles from 21 Canadian and 159 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this impor tant annual reference work. While Volume 39 reports theses submitted in 1994, on occasion, certain uni versities do report theses submitted in previous years but not reported at the time.
Book Synopsis Rheological Evaluation of Asphalt Binders Produced by Blending Practices Using SHRP Performance-related Testing by : Hussain U. Bahia
Download or read book Rheological Evaluation of Asphalt Binders Produced by Blending Practices Using SHRP Performance-related Testing written by Hussain U. Bahia and published by . This book was released on 1994 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Public Roads written by and published by . This book was released on 1992 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 SHRP PG Classification and Evaluation of In-Service Asphalts After Eight Years by : KA. Galal
Download or read book SHRP PG Classification and Evaluation of In-Service Asphalts After Eight Years written by KA. Galal and published by . This book was released on 1997 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study has been conducted on the changes to in-service asphalts. This study represents ongoing extensive research efforts at Purdue University to investigate the changes to in-service asphalts and to evaluate the recently developed SUPERPAVE asphalt binder specifications. During the 1985 construction season, samples from the original asphalt binders and the truck mix samples (original mixtures) were retained from a number of paving projects in Indiana. In 1992/1993, after 7 to 8 years in-service, cores from these pavements were taken. During the same period of time, distress surveys were conducted. In a later stage, six projects were selected for detailed analysis using the SUPERPAVE binder test equipment and procedures. A major interest of this research was to characterize the changes in the asphalt binders in-service and to correlate these changes with the pavement distresses, mainly: permanent deformation (rutting), fatigue cracking, and low temperature cracking. Consequently, the performance grade (PG) binder specifications could be evaluated. The SUPERPAVE binder tests and associated criteria were used to determine the high, intermediate, and low temperature characteristics (stiffness, (Pa)) of the asphalt binders tested. The results compare the relation between the conditioned (aged) asphalt binders from the Rolling Thin Film Oven (RTFO) test and the asphalt binders extracted from the original mixtures and the relation between the asphalt binders conditioned in the Pressure Aging Vessel (PAV) to the asphalt binders extracted from the in-service (field) cores. The results indicate that the current SUPERPAVE RTFO conditioning does not simulate short term aging. Similarly, the results show that the PAV aging procedure does not correspond to the aging encountered after eight years in-service.
Book Synopsis FHWA Nationally Coordinated Program of Highway Research, Development, and Technology. Annual Progress Report. Fiscal Year 1992 by :
Download or read book FHWA Nationally Coordinated Program of Highway Research, Development, and Technology. Annual Progress Report. Fiscal Year 1992 written by and published by . This book was released on 1992 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of New Binders Using Newly Developed Fracture Energy Test by :
Download or read book Evaluation of New Binders Using Newly Developed Fracture Energy Test written by and published by . This book was released on 2013 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study evaluated a total of seven asphalt binders with various additives using the newly developed binder fracture energy test. The researchers prepared and tested PAV-aged and RTFO-plus-PAV-aged specimens. This study confirmed previous research findings that fracture energy is unaffected by loading rates. This research outlines the characteristics of true stress-true strain curves for asphalt binders with various additives.
Book Synopsis Investigation of Modified Asphalt Performance Using SHRP Binder Specification by : Hussain U. Bahia
Download or read book Investigation of Modified Asphalt Performance Using SHRP Binder Specification written by Hussain U. Bahia and published by . This book was released on 1997 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Asphalt Science and Technology by : Arthur Usmani
Download or read book Asphalt Science and Technology written by Arthur Usmani and published by CRC Press. This book was released on 1997-08-22 with total page 541 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Offers comprehensive, authoritative coverage of the chemistry, technology, and engineering of asphaltic products for paving, road construction, roofing, coatings, adhesives, and batteries. Analyzes microcracking and elucidates the mechanisms of degradation to aid the development of hot melt asphalt and increase longevity."
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 Comparison of Results of SHRP and Conventional Binder Tests on Florida Asphalt Cements by : Transportation Research Board
Download or read book Comparison of Results of SHRP and Conventional Binder Tests on Florida Asphalt Cements written by Transportation Research Board and published by . This book was released on 1996 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Performance Evaluation of Polyphosphoric Acid Modified Asphalt Binders by : Istiaque Mahmud
Download or read book Performance Evaluation of Polyphosphoric Acid Modified Asphalt Binders written by Istiaque Mahmud and published by . This book was released on 2016 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis of the Multiple Stress Creep Recovery Asphalt Binder Test and Specifications for Use in Indiana by : Ali Behnood
Download or read book Analysis of the Multiple Stress Creep Recovery Asphalt Binder Test and Specifications for Use in Indiana written by Ali Behnood and published by . This book was released on 2016-10-31 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Superpave specifications and equipment, introduced in 1993, represented a major advancement with respect to offering a better understanding of the behavior and characteristics of asphalt binders based on their rheological properties. However, the Superpave high-temperature test protocol has been shown to be inadequate for characterizing the high-temperature behavior (rutting resistance) of asphalt binders, particularly polymer modified ones. Recently, a specification based on the Multiple Stress Creep Recovery (MSCR) test has been proposed to address the shortcomings of the Superpave high-temperature binder specifications. This study aims to investigate the merits of implementing the MSCR test and specification as a replacement for the conventional high-temperature testing in the Performance Graded (PG) system. A statistical analysis was conducted on a dataset from Indiana Department of Transportation (INDOT) to see how MSCR and PG procedures differ in grading different binders used in the state. In addition, an experimental study was conducted using seventeen different modified and unmodified binders. In addition to binder tests, seven of the binders were selected to conduct asphalt mixture tests such as dynamic modulus and flow number. The results confirm that the MSCR test is a suitable replacement for the current PG high temperature test since it provides a better tool to rank modified asphalt binders as well as unmodified ones. That is, creep compliance from the MSCR test more fundamentally represents binder behavior at high temperatures compared to the PG rutting parameter. In addition, the very simplified approach, known as grade-bumping, used in the current PG system to account for high traffic levels and low speed limits can be eliminated when using the MSCR test. The MSCR test also provides a better coefficient of correlation (at both stress levels) with flow number test results than the PG rutting parameter, again indicating that it more accurately reflects binder performance at high temperatures.
Download or read book Focus written by and published by . This book was released on 1993 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Quality Management Plan for Performance-graded Asphalt Binders by : David A. Anderson
Download or read book Quality Management Plan for Performance-graded Asphalt Binders written by David A. Anderson and published by . This book was released on 2004 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Validation of Relationships Between Specification Properties and Performance by : Rita B. Leahy
Download or read book Validation of Relationships Between Specification Properties and Performance written by Rita B. Leahy and published by National Research Council. This book was released on 1994 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes the two-stage validation of the proposed binder and mix specifications and tests. Stage 1 addresses the validation of the specifications and tests with laboratory data; Stage 2, with field performance data. The report is divided into four chapters, the first of which outlines the validation process. Chapters 2 and 3 are devoted to Stage 1 and 2 validation, respectively, and include a comprehensive discussion of the laboratory testing undertaken to evaluate asphalt concrete performance in terms of permanent deformation, fatigue cracking, and low-temperature cracking. Chapter 4 addresses the validation testing conducted using modified materials.
