Download or read book Performance of Stone Matrix Asphalt SMA Mixtures in the United States written by and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Performance of Stone Mastic Asphalt SMA Mixtures in the United States written by and published by . This book was released on 1997 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Evaluation of Stone Matrix Asphalt written by James E. Shoenberger and published by . This book was released on 1997 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 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 Superpave Mix Design written by Asphalt Institute and published by . This book was released on 2001-01-01 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guidelines for Materials Production and Placement of Stone Matrix Asphalt SMA written by SMA Technical Working Group and published by . This book was released on 1994 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stone Matrix Asphalt (SMA) is a relatively new paving mixture in the U.S. which shows promise as a tough, stable, rut-resistant surface mix in certain applications. The Federal Highway Administration (FHWA) established a Technical Working Group (TWG) composed of representatives from Industry, the states, the National Center for Asphalt Technology (NCAT), and FHWA to develop a set of model guidelines for materials and construction. The TWG also undertook the development of a research agenda, to monitor performance on completed SMA projects, and to assist states and contractors in SMA mix design and construction. This publication is a product of the TWG and provides general guidelines for the use of SMA paving mixtures, including composition of an SMA mixture, aggregates and additives, production, hauling and paving, and compaction.
Download or read book Distress Identification Manual for the Long term Pavement Performance Project written by and published by Strategic Highway Research Program (Shrp). This book was released on 1993 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Performance Baseline for Stone Matrix Asphalt written by Kevin K. McGhee and published by . This book was released on 2005 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 2003, Virginia launched an expanded commitment to stone matrix asphalt (SMA). By the end of 2004, contracts that encompassed nearly 400,000 tons of SMA had been awarded and most of the material produced and placed. During this 2-year timeframe, more construction districts and contractors were engaged in the design, production, and placement of SMA than at any time in the history of the Virginia Department of Transportation (VDOT). Most were experiencing it for the first time. This report documents many aspects of the 2003/2004 SMA "implementation initiative." It summarizes and presents detailed information on costs and quantities, volumetric properties, compaction, permeability, aggregate quality, and initial functional character (ride and friction) for SMA pavements placed during the 2003 and 2004 seasons. SMA is a complex and expensive HMA material. Carefully documenting (or "baselining") today's experiences and understanding the consequences in terms of lifetime costing are important keys to the continued successful deployment of the best HMA technologies for Virginia. If the cost savings associated with SMA (as identified by the National Asphalt Pavement Association) continue and are applied to only the 14% of VDOT's annual program allotted to SMA in 2005, the fruits of this research can contribute to more than $14 million per year in savings.
Download or read book SMA in Maryland written by Larry L. Michael and published by . This book was released on 1996 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Short term Performance of Modified Stone Matrix Asphalt SMA Produced with Warm Mix Additives written by Imad L. Al-Qadi and published by . This book was released on 2012 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Construction and Performance of a Stone Matrix Asphalt Mix Test Section in Virginia written by G. W. Maupin and published by . This book was released on 1995 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: SMA is a gap-graded mix filled with a rich asphalt-fines mastic developed in Europe. In 1991 five states constructed trial sections to determine if satisfactory mixes could be produced in the United States with current materials and high rates of production. This report discusses Virginia's first section, placed in 1992 near Lynchburg. During construction, better equipment was necessary to control the amount of fines contained in SMA mixes. Lack of control in the mix gradation caused variability on the roadway and on routine mix tests conducted during construction. The mix containing the cellulose fiber, Arbocel, has rotted more at stop-lights than the mix containing the polymer, Vestoplast, or the high-stability control mix. However, all mixes continue to perform well. Laboratory creep tests and gyratory shear tests predicted that the control mix and Vestoplast mix would be more resistant to rutting and consolidation under traffic. This investigation and work in other states have improved the current Virginia specification for SMA. The gradation was coarsened, a stiffer asphalt cement was required, and plant equipment that can adequately handle the aggregates was used. With these changes, future installations will perform better than the current dense graded mixes.
Download or read book Advances in Asphalt Materials written by Shin-Che Huang and published by Woodhead Publishing. This book was released on 2015-04-08 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt: The urgent need for infrastructure rehabilitation and maintenance has led to a rise in the levels of research into bituminous materials. Breakthroughs in sustainable and environmentally friendly bituminous materials are certain to have a significant impact on national economies and energy sustainability. This book will provide a comprehensive review on recent advances in research and technological developments in bituminous materials. Opening with an introductory chapter on asphalt materials and a section on the perspective of bituminous binder specifications, Part One covers the physiochemical characterisation and analysis of asphalt materials. Part Two reviews the range of distress (damage) mechanisms in asphalt materials, with chapters covering cracking, deformation, fatigue cracking and healing of asphalt mixtures, as well as moisture damage and the multiscale oxidative aging modelling approach for asphalt concrete. The final section of this book investigates alternative asphalt materials. Chapters within this section review such aspects as alternative binders for asphalt pavements such as bio binders and RAP, paving with asphalt emulsions and aggregate grading optimization. - Provides an insight into advances and techniques for bituminous materials - Comprehensively reviews the physicochemical characteristics of bituminous materials - Investigate asphalt materials on the nano-scale, including how RAP/RAS materials can be recycled and how asphalt materials can self-heal and rejuvenator selection
Download or read book Laboratory Evaluation of Stone Matrix Asphalt Mixtures with Polyethylene and Cellulose Stabilizers written by V. S. Punith and published by . This book was released on 2011 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper deals with the viability of using reclaimed polyethylene (PE) derived from low-density PE carry bags in shredded form collected from domestic waste as stabilizing fibers to evaluate the performance of stone matrix asphalt (SMA). Conventional SMA mixtures were used as reference mixture and were prepared using 60/70-grade asphalt cement and cellulose fibers as stabilizer. The use of PE-modified binder (PEMB) was also investigated as stabilizer in SMA mixtures. The performance of these mixtures was evaluated by conducting draindown, moisture susceptibility test, aging test, rutting test, creep test, permeability test, and fatigue life tests. The PE fibers reinforce the binder system, resulting in the increase in the viscosity of the system. Draindown test results indicated that PE fibers can be effectively used as a stabilizer in SMA to retard draindown of binder and mineral filler. To study the behaviour of SMA mixtures with different additives, mixtures were designed by Marshall and Superpave. Results showed that mixtures designed by Superpave yielded in 0.2 % reduced asphalt content compared to mixtures designed by the Marshall method. From the present study, results indicated that mixtures prepared with PE fibers showed improved performance than reference SMA mixtures with cellulose fibers. Mixtures prepared with PEMB showed improved performance properties compared to mixtures with PE fibers and cellulose fibers.
