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Statistical Based Specifications For Density Control Of Asphalt Concrete Pavements
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Book Synopsis Statistical Based Specifications for Density Control of Asphalt Concrete Pavements by : Mary Stroup-Gardiner
Download or read book Statistical Based Specifications for Density Control of Asphalt Concrete Pavements written by Mary Stroup-Gardiner and published by . This book was released on 1987 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Statistical Acceptance Plan for Asphalt Pavement Construction by : Reed B. Freeman
Download or read book Statistical Acceptance Plan for Asphalt Pavement Construction written by Reed B. Freeman and published by . This book was released on 1998 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Statistical Methods for Quality Control of Road and Paving Materials by : American Society for Testing and Materials
Download or read book Statistical Methods for Quality Control of Road and Paving Materials written by American Society for Testing and Materials and published by ASTM International. This book was released on 1964 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Methods of Compaction Control by : Charles S. Hughes
Download or read book Methods of Compaction Control written by Charles S. Hughes and published by . This book was released on 1968 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Density Measurement Verification for Hot Mix Asphalt Concrete Pavement Construction by : Todd V. Scholz
Download or read book Density Measurement Verification for Hot Mix Asphalt Concrete Pavement Construction written by Todd V. Scholz and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oregon Department of Transportation (ODOT) requires a minimum density for the construction of dense-graded hot mix asphalt concrete (HMAC) pavements to ensure the likelihood that the pavement will not experience distresses that reduce the expected service life of the pavement. Currently, the ODOT Standard Specifications call for density measurements for both quality control and quality assurance testing to be made using nuclear density gauges that are calibrated using reference blocks. Hence, acceptance (i.e., purchase) of the HMAC pavement (or portions thereof) relies on the accuracy of the measurements. However, it has been observed that density measurement results using nuclear gauges have been questionable on a number of projects and that repeatability and reproducibility with the same gauge and between gauges have also been unattainable. Further, these observations have called into question the confidence placed in the use of nuclear gauges for determining HMAC pavement density. The overall objective of the project was to recommend a system that accurately quantifies density of dense-graded HMAC pavements. This involved critically evaluating how ODOT currently measures HMAC density, investigating and evaluating what other agencies do to measure HMAC density, and conducting testing and analysis of alternate ways of measuring HMAC density (e.g., by measuring the density of cores). Statistical analyses comparing nuclear gauge measurements to core densities provided convincing evidence that correlation of nuclear gauge measurements to core densities is necessary to ensure accurate results from nuclear gauges. Analyses comparing correlation factors across lifts of pavements constructed under three differing construction scenarios provided strong evidence to suggest correlation factors established for one lift can be used on other lifts under certain constraints. Correlations are recommended for all gauges on each lift and whenever a new mix design is introduced. ODOT should implement use of the CoreLok device for measuring densities of pavement cores and laboratory-prepared specimens as well as further investigate the use of electromagnetic gauges for in-place HMAC density measurement.
Book Synopsis Specifications for Density Control of Asphalt Pavements by : L. R. Gillis
Download or read book Specifications for Density Control of Asphalt Pavements written by L. R. Gillis and published by . This book was released on 1968 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Quality Assurance in Pavement Construction by : G. J. Allen
Download or read book Quality Assurance in Pavement Construction written by G. J. Allen and published by ASTM International. This book was released on 1980 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Statistical Approach to Quality Control in Highway Construction by : United States. Bureau of Public Roads
Download or read book The Statistical Approach to Quality Control in Highway Construction written by United States. Bureau of Public Roads and published by . This book was released on 1965 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Manual for Statistical Quality Control of Highway Construction by : Jack H. Willenbrock
Download or read book A Manual for Statistical Quality Control of Highway Construction written by Jack H. Willenbrock and published by . This book was released on 1976 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Statistical Parameters Research Quality Control Study on Asphalt Pavement by :
Download or read book Statistical Parameters Research Quality Control Study on Asphalt Pavement written by and published by . This book was released on 1967 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Density Measurement Verification for Hot Mixed Asphalt Concrete Pavement Construction by : Todd V. Scholz
Download or read book Density Measurement Verification for Hot Mixed Asphalt Concrete Pavement Construction written by Todd V. Scholz and published by . This book was released on 2010 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oregon Department of Transportation (ODOT) requires a minimum density for the construction of dense-graded hot mix asphalt concrete (HMAC) pavements to ensure the likelihood that the pavement will not experience distresses that reduce the expected service life of the pavement. Currently, the ODOT Standard Specifications call for density measurements for both quality control and quality assurance testing to be made using nuclear density gauges that are calibrated using reference blocks. Hence, acceptance (i.e., purchase) of the HMAC pavement (or portions thereof) relies on the accuracy of the measurements. However, it has been observed that density measurement results using nuclear gauges have been questionable on a number of projects and that repeatability and reproducibility with the same gauge and between gauges have also been unattainable. Further, these observations have called into question the confidence placed in the use of nuclear gauges for determining HMAC pavement density. The overall objective of the project was to recommend a system that accurately quantifies density of dense-graded HMAC pavements. This involved critically evaluating how ODOT currently measures HMAC density, investigating and evaluating what other agencies do to measure HMAC density, and conducting testing and analysis of alternate ways of measuring HMAC density (e.g., by measuring the density of cores). Statistical analyses comparing nuclear gauge measurements to core densities provided convincing evidence that correlation of nuclear gauge measurements to core densities is necessary to ensure accurate results from nuclear gauges. Analyses comparing correlation factors across lifts of pavements constructed under three differing construction scenarios provided strong evidence to suggest correlation factors established for one lift can be used on other lifts under certain constraints. Correlations are recommended for all gauges on each lift and whenever a new mix design is introduced. ODOT should implement use of the CoreLok device for measuring densities of pavement cores and laboratory-prepared specimens as well as further investigate the use of electromagnetic gauges for in-place HMAC density measurement.
Book Synopsis Proceedings: Quality control techniques by :
Download or read book Proceedings: Quality control techniques written by and published by . This book was released on 1965 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Model Construction Specifications for Asphalt Concrete and Other Plant-mix Types by : Asphalt Institute
Download or read book Model Construction Specifications for Asphalt Concrete and Other Plant-mix Types written by Asphalt Institute and published by . This book was released on 1975 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Reliability-Based Specification for Asphalt Concrete Pavements by : Yared Dinegdae
Download or read book Reliability-Based Specification for Asphalt Concrete Pavements written by Yared Dinegdae and published by . This book was released on 2020 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of volumetric-based specifications that utilize air void and asphalt content for the quality control of asphalt pavements is a major concern as there is a lack of fundamental correlation between these mixture properties and long-term pavement performance. In addition to that, the input variabilities' influence on target reliability and pavement performance is not addressed in these volumetric-based specifications. The aim of this article is to introduce a reliability-based specification for the quality control of top-down cracking in asphalt concrete pavements. The reliability-based specification criteria are developed for two traffic level categories and using design inputs such as hourly equivalent single axle load traffic, asphalt layer thickness, base modulus, and dissipated creep strain energy limit. For the development of the reliability-based specification, several field pavement sections with well-documented performance history and high-quality laboratory and field data were analyzed using the mechanics-based design framework for variability conditions that are representative of actual field conditions. Variation in dissipated creep strain energy limit and asphalt concreter layer thickness has been observed to influence target reliability and overall pavement performance significantly, in comparison with base modulus and hourly equivalent single axle load traffic. The proposed reliability-based specification can complement existing performance-based specifications for the quality control of top-down cracking in asphalt concrete pavements.
Book Synopsis Evaluation of New Asphalt Concrete Density Specification by : G. W. Maupin
Download or read book Evaluation of New Asphalt Concrete Density Specification written by G. W. Maupin and published by . This book was released on 1988 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this investigation was to evaluate a new asphalt concrete density specification that utilizes a nuclear gauge and a control strip technique. The specification was studied on two field projects, and recommendations were made to improve it. The recommendations were to eliminate the correction factor, increase the number of density determinations, adopt a uniform policy in establishing the Marshall density, and provide instruction concerning roller patterns.
Book Synopsis Federally Coordinated Program of Highway Research, Development and Technology by :
Download or read book Federally Coordinated Program of Highway Research, Development and Technology written by and published by . This book was released on 1984 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Review of Data in Construction Management System (CMS) and Quality Control and Quality Assurance (QC/QA) Databases to Improve Current Specifications for Superpave and Concrete Pavements in Kansas by : Daba Gedafa
Download or read book Review of Data in Construction Management System (CMS) and Quality Control and Quality Assurance (QC/QA) Databases to Improve Current Specifications for Superpave and Concrete Pavements in Kansas written by Daba Gedafa and published by . This book was released on 2012 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Statistical specifications for highway construction are usually part of a statistical quality control process. These specifications provide the means to measure the important quality control attributes and ensure their compliance. The pay adjustments, part of these specifications, reflect the amount of deduction or bonus and the optimized risk distributed between the owner and the contractor. The Kansas Department of Transportation (KDOT) has built a comprehensive database of as-constructed properties of materials for Superpave pavements from the tests required as part of the Quality Control/Quality Assurance (QC/QA) program. Currently, KDOT pays incentives/disincentives for air voids and in-place density for Superpave pavements and thickness and strength for PCC pavements. A practical performance model and a composite index that include air voids, in-place density, asphalt content, and voids in mineral aggregate for Superpave pavements and thickness and strength for PCC pavements, respectively are needed to reflect the factors that affect their performance. The main objectives of this study were to investigate the effect of levels of significance and lot size, and to develop practical performance models and composite index for Superpave and PCC pavements in Kansas. Thirty-five Superpave pavements and 13 PCC projects from six administrative districts of KDOT were selected for this study. Lot-wise comparison showed that QC/QA means are significantly different in most cases. The number of cases with a significant difference in means increases with an increase in significance level. Practical performance models and composite index values from multiple quality characteristics have been proposed as integral parts of performance-related specifications (PRS) for Superpave and PCC pavements in Kansas.
