Download or read book Effectiveness Study of Non nuclear Gauge for Hot Mix Asphalt HMA Pavement Construction written by Ziqing Zhuang and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comparison of Nuclear and Non nuclear Density Gauges for Determining In place Density of Hot Mix Asphalt written by Anthony Timm and published by . This book was released on 2012 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of the Nonnuclear Density Gauge for Quality Control of Hot mix Asphalt written by John W. Henault and published by . This book was released on 2010 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of Electromagnetic Gauges for Determining In place HMA Density written by and published by . This book was released on 2007 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Density is an important component of hot-mix asphalt (HMA) pavement quality and long-term performance. Insufficient density of an in-place HMA pavement is the most frequently cited construction-related performance problem. This study evaluated the use of electromagnetic gauges to nondestructively determine densities. Field and laboratory measurements were taken with two electromagnetic gauges-a PaveTracker and a Pavement Quality Indicator (PQ1). Test data were collected in the field during and after paving operations and also in laboratory on field mixes compacted in the lab. This study revealed that several mix-and project-specific factors affect electromagnetic gauge readings. Consequently, the implementation of these gauges will likely need to be done utilizing a test strip on a project- and mix-specific basis to appropriately identify an adjustment factor for the specific electromagnetic gauge being used for quality control and quality assurance (QC/QA) testing. The substantial reduction in testing time that results from employing electromagnetic gauges rather than coring makes it possible for more readings to be used in the QC/QA process with real-time information without increasing the testing costs.
Download or read book NDT Technology for Quality Assurance of HMA Pavement Construction written by Harold L. Von Quintus and published by Transportation Research Board. This book was released on 2009 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: At head of title: National Cooperative Highway Research Program
Download or read book Infrared Thermography driven Flaw Detection and Evaluation of Hot Mix Asphalt Pavements written by Yong K. Cho and published by . This book was released on 2010 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research was conducted to study more realistic explanations of how variables are created and dealt with during hot mix asphalt (HMA) paving construction.--P. ii.
Download or read book A Working Review of Available Non nuclear Equipment for Determining In place Density of Asphalt written by Shad M. Sargand and published by . This book was released on 2005 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Current non-nuclear methods of measuring asphalt pavement density use electrical properties of asphalt. Two known instruments, the PaveTrackerTM and the PQI Model 300, estimate pavement density by inferring the relative proportion of air-filled voids in the asphalt from a measure of dielectric permittivity. Under this project, currently available and new methods of determining in-place asphalt density were investigated. The investigation included a laboratory study of the PaveTrackerTM's ability to accurately measure density under a variety of conditions, including coarse or fine aggregate in mix, presence of internal and/or surface moisture, sample area, and sample depth. Both the PaveTrackerTM and the PQI Model 300 were evaluated in the field by measuring density of measurement locations at each of 24 project sites and comparing to corresponding values measured by a nuclear gauge and laboratory tests. Recommendations for practice, including expected payoff results in using them, are given.
Download or read book Toward a Framework for Field Management of Hot Mix Asphalt HMA Construction Operation written by Heejune Lee and published by . This book was released on 1998 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wisconsin Transportation Research 2000 written by Wisconsin. Department of Transportation and published by . This book was released on 2001 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Report to Stakeholders reviews some of our transportation research efforts in Wisconsin during the past four years. A few of these studies are already complete and have made a significant impact on the way we do business. Many of the projects will be finished in the coming months. For all of us interested in Wisconsin's transportation future, the report provides an overview of these diverse and laudable investigations.
Download or read book Evaluation of Non nuclear Density Gauges for HMAC written by Stephen Sebesta and published by . This book was released on 2003 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes research efforts to determine if commercially available non-nuclear density gauges can be used for TxDOT's density profile and joint density testing procedures. Researchers conducted testing with a Troxler 3450 nuclear gauge (operated in the thin-lift mode) and the Pavetracker (PT) and Pavement Quality Indicator (PQI) non-nuclear gauges. In a laboratory setting, research showed all the gauges could be affected by mix temperature, where gauge readings typically decreased with decreasing mix temperature. All gauges readings were also impacted by moisture, with the nuclear gauge least impacted. The precision of all gauges in the lab was good, with standard deviations below 0.5 pcf with the non-nuclear gauges and less than 1.0 pcf with the nuclear gauge. Field-testing showed the PQI was a suitable alternative to the nuclear gauge for density profiling and joint density testing.
Download or read book Wisconsin Transportation Research written by and published by . This book was released on 2000 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigate Feasibility of GPR to Measure In place Density of New Asphalt Pavement written by Arudi Rajagopal and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Density of asphalt mixtures is one of the most important properties to monitor during construction of Hot Mix Asphalt (HMA) pavements. Many highway agencies routinely specify and measure in-situ asphalt mixture density or air void and use it as a basis for acceptance. Traditionally, density of a newly constructed asphalt concrete layer has been measured in the laboratory using randomly selected core samples extracted from finished pavement. This study investigates the applicability of Ground Penetrating Radar (GPR) for assessment of in-place density of HMA mixtures. GPR measurements were made at two ongoing construction projects in Ohio. Core samples were simultaneously collected and tested in the lab. An analytical model called the 'ALL model' proposed by the University of Illinois researchers was used to derive density values from GPR measurements. The analysis of data indicated that results from core samples and GPR measurements are statistically comparable. Based on the results obtained, it can be concluded that GPR has the potential to map the density of in-place asphalt mixtures in comparison with core densities.
Download or read book Development of Recommendations for Compaction Temperatures in the Field to Acheive Denisty and Limit As built Permeability of HMA in Wisconsin written by and published by . This book was released on 2009 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Download or read book Constructing and Controlling Compaction of Earth Fills written by Donald W. Shanklin and published by ASTM International. This book was released on 2000 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation Presents 22 papers, from the July 1999 symposium, written on the use of various standardized methods for specifying and controlling the compaction of soil for engineered constructed earth fills. Perspectives include the historical background, current state-of-the- art practices, case histories of challenging situations, concerns regarding appropriate design parameters for compaction control, and new methods to evaluate soil compaction and related qualities. Annotation copyrighted by Book News, Inc., Portland, OR.
Download or read book HRIS Abstracts written by National Research Council (U.S.). Highway Research Information Service and published by . This book was released on 1989 with total page 906 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recycling Materials for Highways written by National Research Council (U.S.). Transportation Research Board and published by Transportation Research Board National Research. This book was released on 1978 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This synthesis will be of special interest and usefulness to design engineers, materials technologists, and others seeking information on the potential use of recycled materials in design, construction, rehabilitation, and maintenance of pavements, bases, and other components of the highway system. Detailed information is presented on procedures for pavement recycling."--Avant-propos.
