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Quality Control Quality Assurance Testing For Joint Density And Segregation Of Asphalt Mixtures
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Book Synopsis Quality Control/Quality Assurance Testing for Joint Density and Segregation of Asphalt Mixtures by : R. Christopher Williams
Download or read book Quality Control/Quality Assurance Testing for Joint Density and Segregation of Asphalt Mixtures written by R. Christopher Williams and published by . This book was released on 2013 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: Longitudinal joint quality control/assurance is essential to the successful performance of asphalt pavements and it has received considerable amount of attention in recent years. The purpose of the study is to evaluate the level of compaction at the longitudinal joint and determine the effect of segregation on the longitudinal joint performance. Five paving projects with the use of traditional butt joint, infrared joint heater, edge restraint by milling and modified butt joint with the hot pinch longitudinal joint construction techniques were selected in this study. For each project, field density and permeability tests were made and cores from the pavement were obtained for in-lab permeability, air void and indirect tensile strength. Asphalt content and gradations were also obtained to determine the joint segregation. In general, this study finds that the minimum required joint density should be around 90.0% of the theoretical maximum density based on the AASHTO T166 method. The restrained-edge by milling and butt joint with the infrared heat treatment construction methods both create the joint density higher than this 90.0% limit. Traditional butt joint exhibits lower density and higher permeability than the criterion. In addition, all of the projects appear to have segregation at the longitudinal joint except for the edge-restraint by milling method.
Book Synopsis Advancement in the Design and Performance of Sustainable Asphalt Pavements by : Louay Mohammad
Download or read book Advancement in the Design and Performance of Sustainable Asphalt Pavements written by Louay Mohammad and published by Springer. This book was released on 2017-07-11 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume on “Advancement in the Design and Performance of Sustainable Asphalt Pavements” includes a collection of research and practical papers from an international research and technology activities on Mixture Design Innovation, Structural Pavement Design, Advancement in Production and Construction, Climate Changes and Effects on Infrastructure, Green Energy, Technology and Integration. The volume constitutes an important contribution in view of the urgent need to develop materials, designs, and practices to ensure the sustainability of transportation infrastructure. This volume is part of the proceedings of the 1st GeoMEast International Congress and Exhibition on Sustainable Civil Infrastructures, Egypt 2017.
Author :ASTM Committee D-4 on Road and Paving Materials Publisher :ASTM International ISBN 13 :0803120249 Total Pages :147 pages Book Rating :4.8/5 (31 download)
Book Synopsis Quality Management of Hot Mix Asphalt by : ASTM Committee D-4 on Road and Paving Materials
Download or read book Quality Management of Hot Mix Asphalt written by ASTM Committee D-4 on Road and Paving Materials and published by ASTM International. This book was released on 1996 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Assessment of Nondestructive Testing Technologies for Quality Control/Quality Assurance of Asphalt Mixtures by : Shibin Lin
Download or read book Assessment of Nondestructive Testing Technologies for Quality Control/Quality Assurance of Asphalt Mixtures written by Shibin Lin and published by . This book was released on 2015 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: Asphalt pavements suffer various failures due to insufficient quality within their design lives. The American Association of State Highway and Transportation Officials (AASHTO) Mechanistic-Empirical Pavement Design Guide (MEPDG) has been proposed to improve pavement quality through quantitative performance prediction. Evaluation of the actual performance (quality) of pavements requires in situ nondestructive testing (NDT) techniques that can accurately measure the most critical, objective, and sensitive properties of pavement systems. The purpose of this study is to assess existing as well as promising new NDT technologies for quality control/quality assurance (QC/QA) of asphalt mixtures. Specifically, this study examined field measurements of density via the PaveTracker electromagnetic gage, shear-wave velocity via surface-wave testing methods, and dynamic stiffness via the Humboldt GeoGauge for five representative paving projects covering a range of mixes and traffic loads. The in situ tests were compared against laboratory measurements of core density and dynamic modulus. The in situ PaveTracker density had a low correlation with laboratory density and was not sensitive to variations in temperature or asphalt mix type. The in situ shear-wave velocity measured by surface-wave methods was most sensitive to variations in temperature and asphalt mix type. The in situ density and in situ shear-wave velocity were combined to calculate an in situ dynamic modulus, which is a performance-based quality measurement. The in situ GeoGauge stiffness measured on hot asphalt mixtures several hours after paving had a high correlation with the in situ dynamic modulus and the laboratory density, whereas the stiffness measurement of asphalt mixtures cooled with dry ice or at ambient temperature one or more days after paving had a very low correlation with the other measurements. To transform the in situ moduli from surface-wave testing into quantitative quality measurements, a QC/QA procedure was developed to first correct the in situ moduli measured at different field temperatures to the moduli at a common reference temperature based on master curves from laboratory dynamic modulus tests. The corrected in situ moduli can then be compared against the design moduli for an assessment of the actual pavement performance. A preliminary study of microelectromechanical systems- (MEMS)-based sensors for QC/QA and health monitoring of asphalt pavements was also performed.
Book Synopsis Evaluation of Nonnuclear Density Tests on Hot Mix Asphalt Segregation by : Chieh-Min Chang
Download or read book Evaluation of Nonnuclear Density Tests on Hot Mix Asphalt Segregation written by Chieh-Min Chang and published by . This book was released on 2007 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the identification of segregation on asphalt pavements has been based on visual observations around the world, it is essential to develop a quantitative method to detect the presence and severity of segregation.The nonnuclear density device was selected for the field measurements at nine test sites, and cores were taken for laboratory testing.The nonnuclear density difference between segregated and control areas was found to increase with increasing the segregation severity.For medium or heavy segregated areas, the nonnuclear density difference was more than 90 kg/m3.In medium or heavy segregated areas, the air voids increased by 20 % and the indirect tensile strength decreased by 8 % as compared to the control areas.The criterion to detect segregation was based on the statistical differences in nonnuclear measured density values with a p-value 0.05.If a statistical difference in nonnuclear density between segregated and control areas existed, the chance of aggregate gradation difference in percent passing the 3/8 in., No.4 and No.8 sieves for medium and heavy segregation was 78 and 64 %, respectively.In addition to the field nonnuclear density readings, the material properties of asphalt mixtures obtained from 108 cores, including texture depth and percent air voids were selected as independent variables to develop a model to predict the calibrated nonnuclear density difference between the segregated and control areas.This quantitative model holds a great promise as a tool to identify potential areas of segregation using both lab data and field nonnuclear density measurements for quality assurance purposes.
Book Synopsis Development of Statistically-based Methods to Determine QC/QA Testing Levels for Hot-mix Asphalt Construction by : Robert L. Schmitt
Download or read book Development of Statistically-based Methods to Determine QC/QA Testing Levels for Hot-mix Asphalt Construction written by Robert L. Schmitt and published by . This book was released on 1998 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Testing and Inspection Levels for Hot-mix Asphaltic Concrete Overlays by : Jeffrey S. Russell
Download or read book Testing and Inspection Levels for Hot-mix Asphaltic Concrete Overlays written by Jeffrey S. Russell and published by . This book was released on 2001 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Superpave Mix Design by : Asphalt Institute
Download or read book Superpave Mix Design written by Asphalt Institute and published by . This book was released on 2001-01-01 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effectiveness Comparison of TxDOT Quality Control/quality Assurance and Method Specifications by : Mansour Solaimanian
Download or read book Effectiveness Comparison of TxDOT Quality Control/quality Assurance and Method Specifications written by Mansour Solaimanian and published by . This book was released on 1998 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: This purpose of this study was to evaluate the quality of the hot mix asphalt concrete produced under quality control/quality assurance (QC/QA) specification item 3063. During the first phase of this project, conducted between September 1996 and February 1997, an extensive amount of technical information and numerical information was gathered and analyzed. During the second phase of this project, various other activities were carried out, including a survey of other states to assess their approach in developing and implementing QC/QA specifications, a physical survey of QC/QA and non-QC/QA specification projects in Texas, and a limited evaluation of the cost of the projects. This report presents the results, findings, conclusions, and recommendations based on the collected information and on the work performed during the course of this research program.
Book Synopsis NHI Training Catalog by : National Highway Institute (U.S.)
Download or read book NHI Training Catalog written by National Highway Institute (U.S.) and published by . This book was released on 2006 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Florida. Dept. of Transportation. Office of Materials and Research Publisher : ISBN 13 : Total Pages :158 pages Book Rating :4.3/5 (555 download)
Book Synopsis Implementation of Quality Assurance Specifications by : Florida. Dept. of Transportation. Office of Materials and Research
Download or read book Implementation of Quality Assurance Specifications written by Florida. Dept. of Transportation. Office of Materials and Research and published by . This book was released on 1977 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Academies of Sciences, Engineering, and Medicine Publisher :National Academies Press ISBN 13 :0309451833 Total Pages :209 pages Book Rating :4.3/5 (94 download)
Book Synopsis Guidelines for Optimizing the Risk and Cost of Materials QA Programs by : National Academies of Sciences, Engineering, and Medicine
Download or read book Guidelines for Optimizing the Risk and Cost of Materials QA Programs written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2017-05-25 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB’s National Cooperative Highway Research Program (NCHRP) Research Report 838: Guidelines for Optimizing the Risk and Cost of Materials QA Programs proposes guidelines for optimizing the risk and cost of materials quality assurance (QA) programs. It develops a methodology for establishing a materials QA program that optimizes risk and cost by providing appropriate types, levels, and frequencies of agency testing and inspection for transportation projects across their full range of type, size, complexity, and project-delivery method.
Book Synopsis NHI Catalog by : National Highway Institute (U.S.)
Download or read book NHI Catalog written by National Highway Institute (U.S.) and published by . This book was released on 2009 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hot Mix Asphalt Voids Acceptance by : Eric Chavez
Download or read book Hot Mix Asphalt Voids Acceptance written by Eric Chavez and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Use of SHRP-Developed Testing in QC/QA Programs on Asphalt Concrete for Highway and Airfield Pavements by : JT. Harvey
Download or read book Use of SHRP-Developed Testing in QC/QA Programs on Asphalt Concrete for Highway and Airfield Pavements written by JT. Harvey and published by . This book was released on 1996 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: Present-day test equipment and procedures in quality control (QC) and quality assurance (QA) programs, based on use of the Marshall and Hveem methods, are essentially limited to verification of the physical composition of the asphalt concrete mix and its compacted density to control and assure that the builder is supplying a product which falls within the constraints defined by the job-mix-formula. They do not answer the essential question as to whether or not the asphalt concrete mix will have the strength properties needed to resist the number and intensity of repeated wheel load applications for which it was designed, both at the as-constructed and the traffic-compacted stages. This paper presents a philosophical discussion of the requirements for an asphalt concrete QC/QA system, using performance-based measures as the criteria. The framework for a performance-based system is described based on use of the Repetitive Simple Shear Test at Constant Height (RSST-CH) for rutting prediction and the Flexural Bending Beam Test (FBBT) for the estimation of fatigue cracking.
Book Synopsis Performance Based Field Quality Control/Quality Assurance for Asphalt-Aggregate Mixes by : MG. Bouldin
Download or read book Performance Based Field Quality Control/Quality Assurance for Asphalt-Aggregate Mixes written by MG. Bouldin and published by . This book was released on 1996 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Arizona Department of Transportation in its continuing effort to improve pavement technology evaluated the use of the repetitive simple shear test at constant height and flexural bending beam test as part of the mix design and field quality assurance process. The results of the efforts, indicated that the use of those performance based tests and associated analysis procedures are feasible and implementable for routine use.
Book Synopsis Development of a Quality Assurance Program for Asphalt Paving Mixtures in South Carolina by : J. L. Burati
Download or read book Development of a Quality Assurance Program for Asphalt Paving Mixtures in South Carolina written by J. L. Burati and published by . This book was released on 2000 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
