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Author : William G. Whitcomb
Publisher :
ISBN 13 :
Total Pages : 159 pages
Book Rating : 4.:/5 (376 download)
Download or read book Surface Deflections and Pavement Evaluation written by William G. Whitcomb and published by . This book was released on 1982 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A. F. Stock
Publisher :
ISBN 13 :
Total Pages : 26 pages
Book Rating : 4.:/5 (15 download)
Download or read book The Use of Surface Deflection for Pavement Design and Evaluation written by A. F. Stock and published by . This book was released on 1984* with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gdalyah Wiseman
Publisher :
ISBN 13 :
Total Pages : 11 pages
Book Rating : 4.:/5 (641 download)
Download or read book Simple Elastic Models for Pavement Evaluation Using Measured Surface Deflection Bowls written by Gdalyah Wiseman and published by . This book was released on 1977 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kathleen Theresa Hall
Publisher :
ISBN 13 :
Total Pages : 126 pages
Book Rating : 4.:/5 (31 download)
Download or read book Guidelines for Evaluation of Asphalt-overlaid Concrete Pavements written by Kathleen Theresa Hall and published by . This book was released on 1995 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents guidelines for selection of asphalt-overlaid concrete (AC/PCC) pavements for rehabilitation, collection of distress data, recognition of AC/PCC pavement distress modes, nondestructive deflection testing, materials sampling, and overall project-level evaluation. Key condition indicators (distress, rutting, roughness, serviceability, and CRS) were examined to address their usefulness in AC/PCC rehabilitation project selection. Critical levels for these indicators were identified, and available prediction models were investigated for use in rehabilitation programming. The project-level evaluation procedure includes guidelines for field and laboratory data collection and analysis for structural evaluation, functional evaluation, drainage evaluation, and AC surface material evaluation. A procedure was developed for backcalculation of AC/PCC pavement layer elastic moduli from deflection measurements, and guidelines were developed for practical interpretation of the backcalculation results. The recommended evaluation procedure relies on conventional testing and evaluation methods (visual surveying, deflection testing, coring, materials testing, etc.). New technologies (e.g., ground-penetrating radar, infrared thermography) are developing which have potential for use in pavement evaluation. These technologies are also reviewed in this report.
Author : Gary W. Sharpe
Publisher :
ISBN 13 :
Total Pages : 248 pages
Book Rating : 4.:/5 (524 download)
Download or read book Pavement Evaluation Using Road Rater Deflections written by Gary W. Sharpe and published by . This book was released on 1978 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamic test deflections have been duplicated by elastic theory using the Chevron N-layered computer program. Dynamic surface deflections obtained using the Road Rater have been used in conjunction with elastic theory to analyze pavement behavior. A procedure has been developed to use field measured Road Rater deflections to estimate the elastic moduli of the foundation material and to determine the equivalent thicknesses of new material which approximate the behavior of the structure. The estimated moduli and (or ) equivalent thicknesses may be used as inputs to design overlay thicknesses. An analysis of the deflection of the first three sensors of the Road rater also makes it possible to distinguish weaknesses in asphaltic concrete layers from weaknesses in the supporting foundation.
Author : Albert Jasper Bush
Publisher : ASTM International
ISBN 13 : 0803112602
Total Pages : 701 pages
Book Rating : 4.8/5 (31 download)
Download or read book Nondestructive Testing of Pavements and Backcalculation of Moduli written by Albert Jasper Bush and published by ASTM International. This book was released on 1989 with total page 701 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Douglas A. Steele
Publisher :
ISBN 13 :
Total Pages : 13 pages
Book Rating : 4.:/5 (125 download)
Download or read book Surface Deflections of Perpetual Pavement Sections written by Douglas A. Steele and published by . This book was released on 2012 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structural evaluation provides valuable information at the network level of pavement management for project evaluation and prioritization purposes. However, due to the expenses involved in data collection and analysis, structural capacity is usually not evaluated at the network level. A rolling-wheel deflectometer (RWD), which measures surface deflections at highway speed, can be an alternate, faster method of pavement deflection evaluation for network-level data collection. This study was initiated in order to assess the feasibility of using an RWD for network-level pavement deflection measurements. RWD deflection data were collected under an 80 kN axle load and at a highway speed of about 88 km/h on four perpetual pavement sections in Kansas. Falling-weight deflectometer (FWD) data were also collected concurrently. The FWD first-sensor deflections were normalized to a load of 40 kN and then corrected to a temperature of 20° C. The RWD deflections were also corrected for temperature. FWD and RWD center deflections were then compared statistically. The results show that the deflections measured by RWD and the center (first sensor) deflections from the FWD are statistically similar. Furthermore, there is a linear relationship between FWD and RWD center deflections for all sections.
Author : R. J. Wedner
Publisher :
ISBN 13 :
Total Pages : 126 pages
Book Rating : 4.3/5 (555 download)
Download or read book Flexible Pavement Performance Evaluation Using Deflection Criteria written by R. J. Wedner and published by . This book was released on 1980 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Project monitored flexible pavement dynamic deflections, roughness, and distress over a six-year period. Results show present surface condition and serve as a basis for evaluating rehabilitation needs.
Author : Mario S. Hoffman
Publisher :
ISBN 13 :
Total Pages : 270 pages
Book Rating : 4.:/5 (31 download)
Download or read book Mechanistic Interpretation of Nondestructive Pavement Testing Deflections written by Mario S. Hoffman and published by . This book was released on 1981 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 176 pages
Book Rating : 4.:/5 (1 download)
Download or read book Evaluation of Pavement Deflection Measuring Equipment written by and published by . This book was released on 1987 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report documents the research performed on evaluation of pavement deflection equipment under Contract DTFH61-85-C-00115 for the Federal Highway Administration. The following devices were included in side-by-side field tests conducted in the Austin, Texas area during the week of August 11, 1986: the Benkelman Beam, C.E.B.T.P. Curviameter, Dynaflect, Dynatest Falling Weight Deflectometer (FWD), Kuab FWD, Phonix FWD, and the Road Rater. The report includes descriptions and comparisons of the devices through information obtained from a literature search, field tests and user survey conducted for this study. The side-by-side test program was performed over a broad range of pavement structures, including thick and thin flexible and rigid pavements, and composite pavements. The measured deflections were compared statistically. Mechanistic interpretations of the measured deflection basins were made and compared.
Author : Gary W. Sharpe
Publisher :
ISBN 13 :
Total Pages : 64 pages
Book Rating : 4.:/5 (61 download)
Download or read book Pavement Evaluation Using Dynamic Deflections written by Gary W. Sharpe and published by . This book was released on 1978 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Milton Edward Harr
Publisher :
ISBN 13 :
Total Pages : 332 pages
Book Rating : 4.3/5 (121 download)
Download or read book Noncontact Nondestructive Determination of Pavement Deflection Under Moving Loads written by Milton Edward Harr and published by . This book was released on 1977 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Frank H. Scrivner
Publisher :
ISBN 13 :
Total Pages : 73 pages
Book Rating : 4.:/5 (377 download)
Download or read book Evaluation of the Stiffness of Individual Layers in a Specially Designed Pavement Facility from Surface Deflections written by Frank H. Scrivner and published by . This book was released on 1966 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Shiraz D. Tayabji
Publisher : ASTM International
ISBN 13 : 0803128584
Total Pages : 534 pages
Book Rating : 4.8/5 (31 download)
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
Author :
Publisher :
ISBN 13 :
Total Pages : 88 pages
Book Rating : 4.:/5 (44 download)
Download or read book Pavement Evaluation Studies in Canada written by and published by . This book was released on 1963 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Eyad Masad
Publisher : CRC Press
ISBN 13 : 042985580X
Total Pages : 596 pages
Book Rating : 4.4/5 (298 download)
Download or read book Advances in Materials and Pavement Prediction written by Eyad Masad and published by CRC Press. This book was released on 2018-07-16 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Materials and Pavement Performance Prediction contains the papers presented at the International Conference on Advances in Materials and Pavement Performance Prediction (AM3P, Doha, Qatar, 16- 18 April 2018). There has been an increasing emphasis internationally in the design and construction of sustainable pavement systems. Advances in Materials and Pavement Prediction reflects this development highlighting various approaches to predict pavement performance. The contributions discuss links and interactions between material characterization methods, empirical predictions, mechanistic modeling, and statistically-sound calibration and validation methods. There is also emphasis on comparisons between modeling results and observed performance. The topics of the book include (but are not limited to): • Experimental laboratory material characterization • Field measurements and in situ material characterization • Constitutive modeling and simulation • Innovative pavement materials and interface systems • Non-destructive measurement techniques • Surface characterization, tire-surface interaction, pavement noise • Pavement rehabilitation • Case studies Advances in Materials and Pavement Performance Prediction will be of interest to academics and engineers involved in pavement engineering.
Author : Daba S. Gedafa
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (125 download)
Download or read book Network Level Testing for Pavement Structural Evaluation Using a Rolling Wheel Deflectometer written by Daba S. Gedafa and published by . This book was released on 2010 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structural evaluation can be very useful at the network level of pavement management for project prioritization purposes. However, due to expenses involved in data collection and analysis, pavements are not tested for structural capacity at the network level. Rolling wheel deflectometer (RWD), which measures surface deflections at highway speed, is an alternate, faster method of pavement deflection testing for network level data collection. This study was initiated to assess the feasibility of using RWD for network level pavement deflection measurements. RWD deflection data was collected under an 80-kN axle load and at about highway speed on non-interstate highways in northeast Kansas in July 2006. Falling-wheel deflectometer (FWD) data on these roads, collected from 1998 to 2006, were also used for comparison. The computed effective structural numbers from both FWD and RWD deflection data were compared. The results show that the deflections measured by RWD and the center (first sensor) deflections from FWD are statistically similar. The effective structural numbers computed from the FWD and RWD deflection measurements are also statistically similar. Thus RWD appears to be a valuable tool for structural capacity evaluation of pavements at the network level.
