Download or read book Influence of Aggregate Morphology and Grading on the Performance of 9 5 mm Stone Matrix Asphalt Mixtures written by Yufeng Liu and published by . This book was released on 2019 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stone matrix asphalt (SMA) is a gap-graded hot mix asphalt with a high percentage of coarse aggregate and a high asphalt content. SMA is the typical gap-graded mixture used in Virginia that is intended to maximize rutting resistance and durability with a stable stone-on-stone skeleton held together by a rich mixture of asphalt binder. The field performance of SMA in Virginia has been generally excellent. However, several SMA pavements have undergone premature failure, and factors related to both pavement structure and materials have been identified as causes for the poor performance. A detailed forensic study recommended a specification change for gradation of SMA-9.5 mixtures to provide improved stability. The Virginia Department of Transportation adopted a new aggregate gradation in 2012 for these mixtures. Aggregate morphological characteristics, including sphericity, flatness ratio, elongation ratio, angularity, and texture, have been recognized as major factors influencing the performance of aggregate and asphalt mixtures. The current study demonstrated via laboratory methods the stability of mixtures conforming to the Virginia Department of Transportation’s new grading specification and the effects of aggregate morphology and asphalt binder properties on stability. SMA mixtures designed and produced by different contractors using aggregates from different quarries in Virginia were included in the study. SMA mixtures and samples of the aggregates used in production were obtained for laboratory evaluation of the structural stability and aggregate characteristics of the mixtures. All mixtures met the criterion of VCAMIX

Download or read book Designing Stone Matrix Asphalt Mixtures for Rut resistant Pavements written by E. Ray Brown and published by Transportation Research Board. This book was released on 1999 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Part 1: Summary of research results; Part 2: Mixture design method, construction guidelines, and quality control/quality assurance procedures

Download or read book Investigation of Coarse Aggregate Strength for Use in Stone Matrix Asphalt written by Brandon J. Celaya and published by . This book was released on 2006-09-15 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Aggregates and Mineral Fillers on Asphalt Mixture Performance written by Richard C. Meininger and published by ASTM International. This book was released on 1992 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: Resulting from the Symposium on [title], held in December 1991, at the ASTM Standardization Meetings in San Diego, this volume comprises 19 papers in four sections: aggregates; mineral fillers; mixture evaluation; and fatigue, modeling, and theoretical. Member price, $52. Annotation copyright Book N

Download or read book The Effect of Aggregate Gradation on the Creep Response of Asphalt Mixtures and Pavement Rutting Estimates written by JM. Matthews and published by . This book was released on 1992 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this paper is to determine the influence of aggregate grading on asphalt mixture performance in rutting on heavy duty highways. For this purpose, the Hveem stabilometer method and simple creep tests (unconfined) were utilized. In both methods, Watsonville granite aggregate and AR 4000 and AR 8000 asphalts were used to cast specimens by kneading compaction. Two types of aggregate gradations were used: (1) California standard 0.5 inch (13 mm) maximum size, medium gradation and (2) California standard 0.5 inch (13 mm) maximum size, coarse gradation. The rut depths were predicted for a total of 15 cases, consisting of 4 temperature conditions, 2 aggregate gradations and 2 asphalts. The conclusions drawn, from the results of both methods of measuring performance (stabilometer and creep tests), were that (i) the medium graded mixtures provided significantly better performance in rutting than the coarse graded mixtures, and (2) temperature has more influence on rutting than the aggregate grading.

Download or read book Aggregate Contribution to Hot Mix Asphalt HMA Performance written by Thomas D. White and published by ASTM International. This book was released on 2001 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Containing 13 papers from the December 2000 conference in Orlando, Florida, this book covers the use of the PURWheel laboratory tracking device, the Asphalt Pavement Analyzer, the identification of aggregate role, the evaluation of sensitivity, fine aggregate angularity, guidelines for the selection

Download or read book Stone Matrix Asphalt written by Krzysztof Blazejowski and published by CRC Press. This book was released on 2016-04-19 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the years since the development and subsequent success of Stone Matrix Asphalt (SMA), a plethora of articles have emerged, scattered throughout various publications. The time is right for a comprehensive resource that collects, examines, and organizes this information and makes it easily accessible. A compilation and distillation of the latest k

Download or read book Implication of Aggregates in the Design Construction and Performance of Flexible Pavements written by Hans G. Schreuders and published by ASTM International. This book was released on 1989 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Fine Aggregate Angularity Asphalt Content and Performance Graded Asphalts on Hot Mix Asphalt Performance written by Anthony D. Stakston and published by . This book was released on 2003 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effect of Binder Type Mastic and Aggregate Type on the Low Temperature Characteristics of Modified Hot Mix Asphalt written by Walaa S. Mogawer and published by . This book was released on 2013 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this study was to evaluate the effect of binder type, mastic, and aggregate type on the low-temperature cracking characteristics of asphalt mixtures. Six different performance grade (PG) binders were utilized for this study: PG64-28, PG64-28 with poly phosphoric acid, PG64-34 SBS, PG76-22 SBS, a terminal blend asphalt rubber, and PG64-28 with 2 % latex. Each binder was tested to determine its low-temperature cracking resistance using the asphalt binder cracking device (ABCD) and the Superpave tests. A Superpave 9.5 mm mixture was designed using each of the six binders for this study and two sources of aggregates (crushed stone and gravel). Each mixture was then tested for low-temperature cracking resistance using the asphalt concrete cracking device (ACCD). Mastics corresponding to each mixture were tested for low-temperature cracking resistance using the ABCD. Analysis of the results showed that the AASHTO critical cracking temperature had a strong correlation with the ABCD binder and mastics results, but did not correlate well with the mixture tests. Mastic testing generally did not correlate well with the mixture test results. ABCD and ACCD tests results indicated that they were sensitive to binder type, aging time, and aggregate types.

Download or read book Stone Matrix Asphalt SMA Mixtures written by Samuel H. Carpenter and published by . This book was released on 1994 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aggregate Properties and the Performance of Superpave designed Hot Mix Asphalt written by Brian D. Prowell and published by Transportation Research Board. This book was released on 2005 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aggregate Tests Related to Asphalt Concrete Performance in Pavements written by Prithvi S. Kandhal and published by Transportation Research Board. This book was released on 1998 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Manual for Design of Hot Mix Asphalt with Commentary written by and published by Transportation Research Board. This book was released on 2011 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aggregate Contribution to Hot Mix Asphalt HMA Performance written by and published by ASTM International. This book was released on with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Stone Matrix Asphalt written by Mark Rademaker and published by . This book was released on 1996 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aggregate Tests for Hot mix Asphalt Mixtures Used in Pavements written by Thomas D. White and published by Transportation Research Board. This book was released on 2006 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction and research approach -- Findings -- Interpretation, appraisal, and application -- Conclusions and suggested research -- References -- Abbreviations used without definitions in TRB publications.