Compatibility of a Test for Moisture-induced Damage with Superpave Volumetric Mix Design PDF Download
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Author: Jon A. Epps
Publisher: Transportation Research Board
ISBN: 9780309066570
Category : Technology & Engineering
Languages : en
Pages : 108
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Book Description
Author: Jon A. Epps
Publisher: Transportation Research Board
ISBN: 9780309066570
Category : Technology & Engineering
Languages : en
Pages : 108
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Book Description
Author: Vittorio Guglielmetti
Publisher: CRC Press
ISBN: 0415558549
Category : Technology & Engineering
Languages : en
Pages : 1336
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Book Description
The design and construction of “long and deep” tunnels, i.e. tunnels under mountains, characterised by either considerable length and/or overburden, represent a considerable challenge. The scope of this book is not to instruct how to design and construct such tunnels but to share a method to identify the potential hazards related to the process of designing and constructing long and deep tunnels, to produce a relevant comprehensive analysis and listing, to quantify the probability and consequences, and to design proper mitigation measures and countermeasures. The design, developed using probabilistic methods, is verified during execution by means of the so called Plan for Advance of the Tunnel (PAT) method, which allows adapting the design and control parameters of the future stretches of the tunnel to the results of the stretches already finished, using the monitoring data base. Numerous criteria are given to identify the key parameters, necessary for the PAT procedure. Best practices of excavation management with the help of real time monitoring and control are also provided. Furthermore cost and time evaluation systems are analysed. Finally, contractual aspects related to construction by contract are investigated, for best development and application of models more appropriate for tunnelling-construction contracts. The work will be of interest to practising engineers, designers, consultants and students in mining, underground, tunnelling, transportation and construction engineering, as well as to foundation and geological engineers, urban planners/developers and architects.
Author: Mansour Solaimanian
Publisher: Transportation Research Board
ISBN: 0309099064
Category : Bituminous materials
Languages : en
Pages : 79
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Book Description
Explores whether combining the environmental conditioning system with the simple performance test would provide a superior procedure for determining the moisture susceptibility of hot-mix asphalt (HMA).
Author: Andrew Hanz
Publisher:
ISBN:
Category : Adhesion
Languages : en
Pages : 216
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Book Description
Author: Douglas M. Marshall
Publisher: CRC Press
ISBN: 113802693X
Category : Political Science
Languages : en
Pages : 1944
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Book Description
The proliferation of technological capability, miniaturization, and demand for aerial intelligence is pushing unmanned aerial systems (UAS) into the realm of a multi-billion dollar industry. This book surveys the UAS landscape from history to future applications. It discusses commercial applications, integration into the national airspace system (NAS), System function, operational procedures, safety concerns, and a host of other relevant topics. The book is dynamic and well-illustrated with separate sections for terminology and web- based resources for further information.
Author: Niki Kringos
Publisher: Springer Science & Business Media
ISBN: 9400768788
Category : Technology & Engineering
Languages : en
Pages : 434
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Book Description
The micro- and nano-modification of infrastructure materials and the associated multi-scale characterization and simulation has the potential to open up whole new uses and classes of materials, with wide-ranging implications for society. The use of multi-scale characterization and simulation brings the ability to target changes at the very small scale that predictably effect the bulk behavior of the material and thus allowing for the optimization of material behavior and performance. The International RILEM Symposium on Multi-Scale Modeling and Characterization of Infrastructure Materials (Stockholm, June 10-12, 2013) brought together key researchers from around the world to present their findings and ongoing research in this field in a focused environment with extended discussion times. From asphalt to concrete, from chemistry to mechanics, from nano- to macro-scale: the collection of topics covered by the Symposium represents the width and depth of the currently ongoing efforts of developing more sustainable infrastructure materials. Researchers, practitioners, undergraduates and graduate students engaged in infrastructure materials or multi-scale characterization and modeling efforts can use this book as a comprehensive reference, to learn about the currently ongoing research efforts in this field or as an inspiration for new research ideas to enhance the long-term performance of infrastructure materials from a fundamental perspective. The Symposium was held under the auspices of the RILEM Technical Committee on Nanotechnology-Based Bituminous Materials 231-NBM and the Transport Research Board (TRB) Technical Committee on Characteristics of Asphalt Materials AFK20.
Author: Eugene Skok
Publisher: DEStech Publications, Inc
ISBN: 1605951455
Category : Technology & Engineering
Languages : en
Pages : 752
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Book Description
New developments in mixing, testing, modeling Research findings on sustainable asphalt technology Bitumen use and specifications in Europe Fully-searchable text on accompanying CD-ROM Asphalt Paving Technology 2013, a series volume, contains 26 original research papers devoted to the formulation, chemistry, mixing, modeling, testing and optimization of asphalt—with applications to highway and infrastructure engineering. Written by leading civil and structural engineers from universities and government agencies around the world, the book offers information for designing and producing higher-quality asphalt. Selected keywords: photocatalytic asphalt; fatigue loading; skid-resistance; low-temperature cracking software; long-term aging; fracture properties; moisture damage; RAP; rejuvenators; binders; flexible pavement; healing. The CD-ROM displays figures and illustrations in articles in full color along with a title screen and main menu screen. Each user can link to all papers from the Table of Contents and Author Index and also link to papers and front matter by using the global bookmarks which allow navigation of the entire CD-ROM from every article. Search features on the CD-ROM can be by full text including all key words, article title, author name, and session title. The CD-ROM has Autorun feature for Windows 2000 with Service Pack 4 or higher products along with the program for Adobe Acrobat Reader with Search 11.0. One year of technical support is included with your purchase of this product.
Author: Ramon Bonaquist
Publisher:
ISBN:
Category : Pavements, Asphalt concrete
Languages : en
Pages : 236
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Book Description
Author: Robert Y. Liang
Publisher:
ISBN:
Category : Bituminous materials
Languages : en
Pages : 218
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Book Description
Moisture induced damage in asphalt concrete pavements, better known as stripping, is one of primary causes of distresses in the asphalt pavement layers. AASHTO T283 has historically been used to detect moisture damage potential of asphalt mixes. This method is established for the Marshall mix design process. However, the current hot mix asphalt design calls for the use of Superpave mix design procedure using the Superpave Gyratory Compactor (SGC). The differences in the mix design methods will most likely introduce significant differences in stripping test results. Therefore, to improve the AASHTO T283 test procedure and to develop the new criterion for the Superpave HMA specimens, this project was conducted to evaluate the applicability of AASHTO T283 to the Superpave mixes. A structured laboratory test program was conducted in this research to study the effects of the various factors on the HMA specimen's susceptibility to moisture damage. A complete factorial experimental program for two aggregate sources with virgin asphalt binder was conducted together with a partial factorial experimental program for the other two aggregate sources with polymer modified asphalt binders. In the data analysis, the effects of different factors on dry tensile strength, freeze-thaw conditioned tensile strength, and tensile strength ratio (TSR) were investigated in this report. The effects of all the factors investigated in this research are summarized in this report. The recommendations for the proposed stripping test procedure for Superpave HMA are given at the end of the report.
Author: Ramon Francis Bonaquist
Publisher: Transportation Research Board
ISBN: 0309155592
Category : Science
Languages : en
Pages : 111
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Book Description
TRB's National Cooperative Highway Research Program (NCHRP) Report 691: Mix Design Practices for Warm-Mix Asphalt explores a mix design method tailored to the unique material properties of warm mix asphalt technologies. Warm mix asphalt (WMA) refers to asphalt concrete mixtures that are produced at temperatures approximately 50°F (28°C) or more cooler than typically used in the production of hot mix asphalt (HMA). The goal of WMA is to produce mixtures with similar strength, durability, and performance characteristics as HMA using substantially reduced production temperatures. There are important environmental and health benefits associated with reduced production temperatures including lower greenhouse gas emissions, lower fuel consumption, and reduced exposure of workers to asphalt fumes. Lower production temperatures can also potentially improve pavement performance by reducing binder aging, providing added time for mixture compaction, and allowing improved compaction during cold weather paving. Appendices to NCHRP Report 691 include the following. Appendices A, B, and D are included in the printed and PDF version of the report. Appendices C and E are available only online.
