Evaluation Of Indirect Tensile Test Idt Procedures For Low Temperature Performance Of Hot Mix Asphalt
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Evaluation Of Indirect Tensile Test Idt Procedures For Low Temperature Performance Of Hot Mix Asphalt
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Author : Donald W. Christensen
language : en
Publisher: Transportation Research Board
Release Date : 2004
Evaluation Of Indirect Tensile Test Idt Procedures For Low Temperature Performance Of Hot Mix Asphalt written by Donald W. Christensen and has been published by Transportation Research Board this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Pavements, Asphalt categories.
Introduction and Research Approach -- Findings -- Interpretation, Appraisal, and Applications -- Conclusions and Recommendations -- References -- Appendixes.
Evaluation Of Indirect Tensile Test Idt Procedures For Low Temperature Performance Of Hot Mix Asphalt
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Author :
language : en
Publisher:
Release Date : 2004
Evaluation Of Indirect Tensile Test Idt Procedures For Low Temperature Performance Of Hot Mix Asphalt written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.
Nchrp Report 530
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Author :
language : en
Publisher:
Release Date : 2004
Nchrp Report 530 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.
Evaluation Of The Ohio Cte Device For Low Temperature Characterization Of Hot Mix Asphalt
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Author : Saif Nassar
language : en
Publisher:
Release Date : 2020
Evaluation Of The Ohio Cte Device For Low Temperature Characterization Of Hot Mix Asphalt written by Saif Nassar and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with Asphalt categories.
Low temperature cracking is a major distress for flexible pavements in cold regions. Most tests that are used currently to predict asphalt mixture performance at low temperatures require long time and effort to perform the test and analyze the data. A new laboratory test called the Ohio CTE device (OCD) has been developed as a more practical alternative to predict the asphalt mixture performance at low temperatures. This study presents an evaluation of the Ohio CTE device (OCD) in terms of effort for sample preparation, testing time, repeatability of test results, and complexity of the analysis of test data. To assess the ability of the Ohio CTE device (OCD) to predict the low temperature performance of asphalt mixtures, results obtained from this test were correlated to three other common low temperature tests, including the creep compliance and indirect tension test (IDT), the thermal stress restrained specimen test (TSRST), the asphalt concrete cracking device test (ACCD). Nine asphalt mixtures prepared using the same aggregate blend and different asphalt binders were included in this study. High correlation was observed between the Ohio CTE device (OCD) test results and results obtained from the other laboratory tests. In addition, the Ohio CTE device (OCD) was found to be advantageous over the other low temperature tests in that it requires significantly less time to prepare the test samples, which suggests that the Ohio CTE device (OCD) can be used as a routine test for low temperature characterization of asphalt mixtures.
Long And Deep Tunnels
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Author : Vittorio Guglielmetti
language : en
Publisher: CRC Press
Release Date : 2016-04-15
Long And Deep Tunnels written by Vittorio Guglielmetti and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-04-15 with Technology & Engineering categories.
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.
8th Rilem International Symposium On Testing And Characterization Of Sustainable And Innovative Bituminous Materials
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Author : Francesco Canestrari
language : en
Publisher: Springer
Release Date : 2015-09-24
8th Rilem International Symposium On Testing And Characterization Of Sustainable And Innovative Bituminous Materials written by Francesco Canestrari and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-09-24 with Technology & Engineering categories.
This work presents the results of RILEM TC 237-SIB (Testing and characterization of sustainable innovative bituminous materials and systems). The papers have been selected for publication after a rigorous peer review process and will be an invaluable source to outline and clarify the main directions of present and future research and standardization for bituminous materials and pavements. The following topics are covered: - Characterization of binder-aggregate interaction - Innovative testing of bituminous binders, additives and modifiers - Durability and aging of asphalt pavements - Mixture design and compaction analysis - Environmentally sustainable materials and technologies - Advances in laboratory characterization of bituminous materials - Modeling of road materials and pavement performance prediction - Field measurement and in-situ characterization - Innovative materials for reinforcement and interlayer systems - Cracking and damage characterization of asphalt pavements - Recycling and re-use in road pavements This is the proceedings of the RILEM SIB2015 Symposium (Ancona, Italy, October 7-9, 2015).
Characterization Of Wisconsin Mixture Low Temperature Properties For The Aashto Mechanistic Empirical Pavement Design Guide
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Author : Ramon Francis Bonaquist
language : en
Publisher:
Release Date : 2011
Characterization Of Wisconsin Mixture Low Temperature Properties For The Aashto Mechanistic Empirical Pavement Design Guide written by Ramon Francis Bonaquist and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Pavements, Asphalt categories.
This research evaluated the low temperature creep compliance and tensile strength properties of Wisconsin mixtures. Creep compliance and tensile strength data were collected for 16 Wisconsin mixtures representing commonly used aggregate sources and binder grades. Engineering and statistical analyses were performed on the data to provide recommendations for using measured mechanical properties in thermal cracking analyses with the Mechanistic-Empirical Pavement Design Guide (MEPDG), and to evaluate the thermal fracture resistance of Wisconsin mixtures.
Performance Tests For Hot Mix Asphalt Hma Including Fundamental And Empirical Procedures
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Author : Louay Nadhim Mohammad
language : en
Publisher: ASTM International
Release Date : 2006
Performance Tests For Hot Mix Asphalt Hma Including Fundamental And Empirical Procedures written by Louay Nadhim Mohammad and has been published by ASTM International this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Anisotropy categories.
Functional Pavement Design
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Author : Sandra Erkens
language : en
Publisher: CRC Press
Release Date : 2016-10-14
Functional Pavement Design written by Sandra Erkens and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-10-14 with Technology & Engineering categories.
Functional Pavement Design is a collections of 186 papers from 27 different countries, which were presented at the 4th Chinese-European Workshops (CEW) on Functional Pavement Design (Delft, the Netherlands, 29 June-1 July 2016). The focus of the CEW series is on field tests, laboratory test methods and advanced analysis techniques, and cover analysis, material development and production, experimental characterization, design and construction of pavements. The main areas covered by the book include: - Flexible pavements - Pavement and bitumen - Pavement performance and LCCA - Pavement structures - Pavements and environment - Pavements and innovation - Rigid pavements - Safety - Traffic engineering Functional Pavement Design is for contributing to the establishment of a new generation of pavement design methodologies in which rational mechanics principles, advanced constitutive models and advanced material characterization techniques shall constitute the backbone of the design process. The book will be much of interest to professionals and academics in pavement engineering and related disciplines.
Laboratory Tests For Hot Mix Asphalt Characterization In Virginia
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Author :
language : en
Publisher:
Release Date : 2005
Laboratory Tests For Hot Mix Asphalt Characterization In Virginia written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Asphalt categories.
This project reviewed existing laboratory methods for accurately describing the constitutive behavior of the mixes used in the Commonwealth of Virginia. Indirect tensile (IDT) strength, resilient modulus, static creep in the IDT and uniaxial modes, flexural beam fatigue, and dynamic modulus tests were conducted on two typical mixes used in Virginia: SM-9.5A (surface mix) and BM-25.0 (base mix). The tests conducted produced a wealth of data on typical values for the properties of the two mixes studied over a wide range of temperatures and loading frequencies. The results suggest that the IDT strength test is an effective test to characterize the tensile strength of hot-mix asphalt (HMA), especially for thermal cracking evaluation. The resilient modulus test and the static creep test in the IDT setup are practical and simple to perform, but the analysis of the measurements is complicated, and the variability of the results is high. The compressive uniaxial dynamic modulus and the uniaxial static creep tests were found to be simple to conduct and to analyze because of the homogeneous state of stress in the specimen during testing. The flexural fatigue test was time consuming, but the test produces valuable information about the fatigue properties of hot-mix asphalt. The investigation also found good correlations among the IDT strength, resilient modulus, and dynamic modulus results. A variety of tests is recommended for characterizing the mechanistic-empirical pavement analysis and design. These tests would provide the properties needed to characterize the asphalt layers for the pavement analysis and design. The recommended tests are as follows: IDT strength for characterizing HMA susceptibility to thermal cracking, dynamic modulus for characterization of the constitutive behavior of the HMA, uniaxial creep for characterizing permanent deformation characteristics, and flexural fatigue tests to characterize fatigue properties. Materials characterization testing can be a valuable tool in pavement design. The use of mechanistic-empirical modeling can be used to predict the performance of a pavement. With this type of testing and modeling, the materials used in pavements will be of better quality and more resistant to environmental and structural deterioration. A more durable pavement will aid in reducing the frequency and costs associated with maintenance.