Interpreting Falling Weight Deflectometer Results For Curled And Warped Portland Cement Concrete Pavements
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Interpreting Falling Weight Deflectometer Results For Curled And Warped Portland Cement Concrete Pavements
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Author : Julie Marie Vandenbossche
language : en
Publisher:
Release Date : 2003
Interpreting Falling Weight Deflectometer Results For Curled And Warped Portland Cement Concrete Pavements written by Julie Marie Vandenbossche and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.
Case Studies Using Falling Weight Deflectometer Data With Mechanistic Empirical Design And Analysis
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Author : Kurt D. Smith
language : en
Publisher:
Release Date : 2012
Case Studies Using Falling Weight Deflectometer Data With Mechanistic Empirical Design And Analysis written by Kurt D. Smith and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Falling weight deflectometer categories.
The need to accurately characterize the structural condition of existing pavements has increased with the recent development, release, and ongoing implementation of the Mechanistic-Empirical Pavement Design Guide (MEPDG), developed under National Cooperative Highway Research Program Project No. 1-37A. A number of different material inputs are required in the procedure, and it is important that these be adequately characterized and defined so that competent structural designs can be developed. The analysis of deflection data collected with a falling weight deflectometer (FWD) provides a quick and reliable way of characterizing many of the parameters of the existing pavement layers. This paper summarizes how deflection data are incorporated into the MEPDG and describes two case studies, one with a flexible pavement and one with a rigid pavement. Significant findings and recommendations from the evaluated flexible pavement case study include the following: surface-down cracking is critical in the design of the hot mix asphalt (HMA) overlay, correction factors should be used for adjusting backcalculated layer moduli to laboratory determined values, and an FWD testing frequency of 30 Hz should be used for estimating the existing HMA modulus. For rigid pavements, the case study found that the thinnest overlay produced from the MEPDG was a bonded Portland cement concrete (PCC) overlay, whereas the HMA overlay was unreasonably thick. Within the design procedure, the manually entered k-value is used for unbonded and bonded jointed plain concrete pavements but does not appear to be used by the program in the HMA overlay design. The backcalculated dynamic (or static) elastic modulus should be used for the PCC layer, and the dynamic k-value should be used for the supporting layers. The backcalculated k-value representing the composite stiffness of all layers beneath the slab does not appear to have a significant influence on the design thickness for the pavement structure analyzed.
Concrete Pavement Design Construction And Performance
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Author : Norbert Delatte
language : en
Publisher: CRC Press
Release Date : 2007-09-12
Concrete Pavement Design Construction And Performance written by Norbert Delatte and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-09-12 with Technology & Engineering categories.
Addressing the interactions between the different design and construction variables and techniques this book illustrates best practices for constructing economical, long life concrete pavements. The book proceeds in much the same way as a pavement construction project. First, different alternatives for concrete pavement solutions are outlined. The desired performance and behaviour parameters are identified. Next, appropriate materials are outlined and the most suitable concrete proportions determined. The design can be completed, and then the necessary construction steps for translating the design into a durable facility are carried out. Although the focus reflects highways as the most common application, special features of airport, industrial, and light duty pavements are also addressed. Use is made of modeling and performance tools such as HIPERPAV and LTPP to illustrate behavior and performance, along with some case studies. As concrete pavements are more complex than they seem, and the costs of mistakes or of over-design can be high, this is a valuable book for engineers in both the public and private sectors.
Nondestructive Testing Of Pavements And Backcalculation Of Moduli
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Author : Shiraz D. Tayabji
language : en
Publisher: ASTM International
Release Date : 2000
Nondestructive Testing Of Pavements And Backcalculation Of Moduli written by Shiraz D. Tayabji and has been published by ASTM International this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Materials categories.
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
Aggregates In Concrete
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Author : Mark Alexander
language : en
Publisher: CRC Press
Release Date : 2010-02-25
Aggregates In Concrete written by Mark Alexander and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-02-25 with Technology & Engineering categories.
Bringing together in one volume the latest research and information, this book provides a detailed guide to the selection and use of aggregates in concrete. After an introduction defining the purpose and role of aggregates in concrete, the authors present an overview of aggregate sources and production techniques, followed by a detailed study of their physical, mechanical and chemical properties. This knowledge is then applied to the use of aggregates in both plastic and hardened concretes, and in the overall mix design. Special aggregates and their applications are discussed in detail, as are the current main specifications, standards and tests.
Mechanistic Empirical Pavement Design Guide
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Author : American Association of State Highway and Transportation Officials
language : en
Publisher: AASHTO
Release Date : 2008
Mechanistic Empirical Pavement Design Guide written by American Association of State Highway and Transportation Officials and has been published by AASHTO this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Pavements categories.
Proceedings 4th International Conference On Concrete Pavement Design And Rehabilitation
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Author :
language : en
Publisher:
Release Date : 1989
Proceedings 4th International Conference On Concrete Pavement Design And Rehabilitation written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Pavements categories.
High Performance Concrete Pavements
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Author :
language : en
Publisher:
Release Date : 2002
High Performance Concrete Pavements written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Government publications categories.
Principles Of Pavement Design
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Author : E. J. Yoder
language : en
Publisher: John Wiley & Sons
Release Date : 1991-01-08
Principles Of Pavement Design written by E. J. Yoder and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991-01-08 with Technology & Engineering categories.
Presents a complete coverage of all aspects of the theory and practice of pavement design including the latest concepts.
Thin And Ultra Thin Whitetopping
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Author : Robert Otto Rasmussen
language : en
Publisher: Transportation Research Board
Release Date : 2004
Thin And Ultra Thin Whitetopping written by Robert Otto Rasmussen 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 categories.
TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 338: Thin and Ultra-Thin Whitetopping summarizes available information to document how state departments of transportation and others are currently using thin and ultra-thin whitetopping overlays among various pavement rehabilitation alternatives. The report covers all stages of the proper application of whitetopping overlays, including project selection, design, materials selection, construction, maintenance, and eventual rehabilitation or replacement.