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Mechanistic Based Flexible Overlay Design System
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Book Synopsis Mechanistic-based Flexible Overlay Design System by :
Download or read book Mechanistic-based Flexible Overlay Design System written by and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This study presents a mechanistic-based overlay design procedure which incorporates the in-situ pavement layer moduli values evaluated by non-destructive testing using Falling Weight Deflectometer. The developed overlay design procedure is mechanistic-based where it makes use of the stresses and strains developed under traffic axle loads to assess the pavement induced damage. The method addresses the effect of seasonal variation on the accumulated damage along the pavement life. For each season, the pavement layer moduli values are adjusted to reflect the variation in pavement temperature and the subgrade moisture including the effects of freeze and thaw if exist. The design method allows for the calculations of the stresses and strains in the pavement layers at each season, and then sum all the damage occurred along the pavement life. Damage is estimated in terms of accumulated fatigue and/or rutting damage along the designated service life. Due to the complexity of the calculation process and the iterative nature of the procedure, the developed overlay design system has been implemented in an event driven user friendly computer program named FLEXOLAY. The program is tested and compared with overlay design methods using pavement sections from the state of Idaho. It is found that the overlay thickness determined by the FLEXOLAY was close to some of the existing methods and far from others depending upon the existing pavement conditions. For the covering abstract of this conference see IRRD number 872978.
Book Synopsis WINFLEX 2006 by : Fouad Mohamed Sayed Bayomy
Download or read book WINFLEX 2006 written by Fouad Mohamed Sayed Bayomy and published by . This book was released on 2007* with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The purpose of this brief report is to document the technical background of the development of the WINFLEX 2006 software. It describes the engineering principals used in the development of the mechanistic-empirical overlay design system that is implemented in the WINFLEX software."--P. 1.
Book Synopsis Efficient Transportation and Pavement Systems: Characterization, Mechanisms, Simulation, and Modeling by : Imad L. Al-Qadi
Download or read book Efficient Transportation and Pavement Systems: Characterization, Mechanisms, Simulation, and Modeling written by Imad L. Al-Qadi and published by CRC Press. This book was released on 2008-11-01 with total page 924 pages. Available in PDF, EPUB and Kindle. Book excerpt: Internationally, significant attention is given to transport sustainability including planning, design, construction, evaluation, safety and durability of the road system. The 4th International Gulf Conference on Roads: Efficient Transportation and Pavement Systems - Characterization, Mechanisms, Simulation, and Modeling, hosted by the University o
Book Synopsis Development of a Mechanistic Overlay Design Procedure for Flexible Pavements by : Haiping Zhou
Download or read book Development of a Mechanistic Overlay Design Procedure for Flexible Pavements written by Haiping Zhou and published by . This book was released on 1990 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation describes the development of a mechanistic overlay design procedure. The mechanistic analysis represents a new trend in both new pavement and overlay design. The greatest advantage of the mechanistic pavement analysis is that it considers the fundamental characteristics of materials to be used, is capable of considering changes in loading and tire pressure, and characterizes the response of the pavement to traffic loads in terms of strains and/or stresses. This type of analysis allows practicing engineers to more realistically address pavement structure, materials, and other influential variables such as environmental impacts so that the behavior of the pavement may be better understood. One of the critical steps in using the mechanistic type pavement analysis is the determination of pavement layer properties (e.g, resilient modulus). In this study, methods commonly used for determining resilient modulus have been reviewed. Three existing mechanistic overlay design procedures were also reviewed. Based on the review, improved procedures for determining pavement layer moduli and overlay design seem to be necessary. Significant contributions of this study are the development and computerization of an improved backcalculation procedure (BOUSDEF) for determining pavement layer moduli and an improved mechanistic overlay design procedure (MECHOD). Initial evaluations on both procedures were performed. For BOUSDEF, three approaches were used: 1) comparing with hypothesized theoretical moduli, 2) comparing with other developed backcalculation programs, and 3) comparing with laboratory tested modulus values. The evaluation showed BOUSDEF provided favorable comparisons. Therefore, the program can be effectively used as a tool to make initial evaluation of deflection testing data for determining pavement layer moduli. For MECHOD, actual pavement data from the states of Oregon and Alaska were used. All pavements evaluated are conventional structures consisting of an asphalt concrete surface, an aggregate base and/or a subbase, over subgrade. The evaluation showed that the improved method provided very similar results to those of standard procedures (ODOT, AASHTO, and The Asphalt Institute). The BOUSDEF and MECHOD programs can be implemented together as a pavement evaluation and overlay design system. That is; 1) use BOUSDEF to backcalculate pavement layer moduli, and 2) use MECHOD to perform overlay design.
Book Synopsis Nondestructive Testing of Pavements and Backcalculation of Moduli by : Shiraz D. Tayabji
Download or read book Nondestructive Testing of Pavements and Backcalculation of Moduli written by Shiraz D. Tayabji and published by ASTM International. This book was released on 2000 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: As with the previous two symposia, the 32 papers from the June/July, 1999, Seattle symposium present advances in the nondestructive testing of pavements using conventional falling weight deflectometer techniques and other promising techniques such as ground penetrating radar, rolling weight deflecto
Download or read book Transportation Research Record written by and published by . This book was released on 1999 with total page 802 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mechanistic Pavement Overlay Design by : Nicholas P. Vitillo
Download or read book Mechanistic Pavement Overlay Design written by Nicholas P. Vitillo and published by . This book was released on 1992 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characterizing Seasonal Variations in Pavement Material Properties for Use in a Mechanistic-empirical Design Procedure by : Jill M. Ovik
Download or read book Characterizing Seasonal Variations in Pavement Material Properties for Use in a Mechanistic-empirical Design Procedure written by Jill M. Ovik and published by . This book was released on 2000 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bearing Capacity Of Roads Volume 1 by : A. Gomes Correia
Download or read book Bearing Capacity Of Roads Volume 1 written by A. Gomes Correia and published by CRC Press. This book was released on 2022-01-27 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an outcome of the sixth conference on bearing capacity of roads and airfield held in Lisbon, Portugal. It focuses on railway tracks and covers following topics: bearing capacity policies, concepts, costs and condition surveys; analysis and modelling; design and environmental effects.
Download or read book Proceedings written by and published by . This book was released on 1997 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :American Association of State Highway and Transportation Officials Publisher :AASHTO ISBN 13 :156051423X Total Pages :218 pages Book Rating :4.5/5 (65 download)
Book Synopsis Mechanistic-empirical Pavement Design Guide by : American Association of State Highway and Transportation Officials
Download or read book Mechanistic-empirical Pavement Design Guide written by American Association of State Highway and Transportation Officials and published by AASHTO. This book was released on 2008 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the 10th International Conference on Maintenance and Rehabilitation of Pavements by : Paulo Pereira
Download or read book Proceedings of the 10th International Conference on Maintenance and Rehabilitation of Pavements written by Paulo Pereira and published by Springer Nature. This book was released on with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Advisory Committee on Technology and Society Publisher :National Academies Press ISBN 13 :9780309037860 Total Pages :1298 pages Book Rating :4.0/5 (378 download)
Book Synopsis Cities and Their Vital Systems by : Advisory Committee on Technology and Society
Download or read book Cities and Their Vital Systems written by Advisory Committee on Technology and Society and published by National Academies Press. This book was released on 1989 with total page 1298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cities and Their Vital Systems asks basic questions about the longevity, utility, and nature of urban infrastructures; analyzes how they grow, interact, and change; and asks how, when, and at what cost they should be replaced. Among the topics discussed are problems arising from increasing air travel and airport congestion; the adequacy of water supplies and waste treatment; the impact of new technologies on construction; urban real estate values; and the field of "telematics," the combination of computers and telecommunications that makes money machines and national newspapers possible.
Book Synopsis Rigid and Flexible Pavement Design and Rehabilitation by : National Research Council (U.S.). Transportation Research Board
Download or read book Rigid and Flexible Pavement Design and Rehabilitation written by National Research Council (U.S.). Transportation Research Board and published by . This book was released on 1993 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Implementation of the AASHTO Mechanistic-empirical Pavement Design Guide and Software by :
Download or read book Implementation of the AASHTO Mechanistic-empirical Pavement Design Guide and Software written by and published by . This book was released on 2014 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction -- Mechanistic-Empirical Pavement Design Guide and AASHTOWare Pavement ME Design (TM) Software Overview -- Survey of Agency Pavement Design Practices -- Common Elements of Agency Implementation Plans -- Case Examples of Agency Implementation -- Conclusions.
Book Synopsis Design and Evaluation of Rigid and Flexible Pavements by : National Research Council (U.S.). Transportation Research Board
Download or read book Design and Evaluation of Rigid and Flexible Pavements written by National Research Council (U.S.). Transportation Research Board and published by . This book was released on 1990 with total page 288 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.
