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Author : Prasada Rao Rangaraju
Publisher :
ISBN 13 :
Total Pages : 62 pages
Book Rating : 4.:/5 (1 download)
Download or read book Evaluation of South Carolina Aggregate Durability Properties written by Prasada Rao Rangaraju and published by . This book was released on 2005 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 112 pages
Book Rating : 4.:/5 (891 download)
Download or read book Investigation of Testing Methods to Determine Long-term Durability of Wisconsin Aggregates written by and published by . This book was released on 2013 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Approximately 10 to 11 million tons of aggregates are utilized in transportation infrastructure projects in Wisconsin annually. The quality of aggregates has a tremendous influence on the performance and durability of roadways and bridges. In this Phase II research study, detailed statistical analyses were performed on over 1,000 sets of historical aggregate test results and the experimental results from the Phase I study. Test results from other states were analyzed as well. Aggregate tests were performed on 12 known marginal or poor Wisconsin aggregates to specifically address test performance of such aggregates. Selected aggregates were scanned using X-ray computed tomography to assess the effects of freeze-thaw and sodium sulfate exposure on the internal void system. The results of multi-parameter logistic regression analyses show that the pass/fail outcomes of the Micro-Deval test can be predicted when LA abrasion, absorption, and sodium sulfate soundness test results are known. The unconfined freeze-thaw test outcomes cannot be predicted from results of other tests (not correlated). Therefore, the unconfined freeze-thaw test should be part of any test protocol as it measures an aggregate characteristic that cannot be obtained from other tests. The percentiles associated with any proposed acceptance threshold limits for various aggregate tests should be determined using the statistical data provided.
Author : Jonathan Edlinski
Publisher :
ISBN 13 :
Total Pages : 110 pages
Book Rating : 4.:/5 (613 download)
Download or read book Comparative Evaluation of Aggregate Toughness/ Abrasion Resistance and Soundness Tests Using South Carolina Aggregates written by Jonathan Edlinski and published by . This book was released on 2005 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 128 pages
Book Rating : 4.:/5 (221 download)
Download or read book Evaluation of Concrete and Aggregate Durability Test written by and published by . This book was released on 1993 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Khurshid Ahmad Chaudhry
Publisher :
ISBN 13 :
Total Pages : 228 pages
Book Rating : 4.:/5 (463 download)
Download or read book An Evaluation of Concrete Making Properties of Scoria Lightweight Aggregate Based on Compressive Strength written by Khurshid Ahmad Chaudhry and published by . This book was released on 1962 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Y. Wu
Publisher :
ISBN 13 :
Total Pages : 11 pages
Book Rating : 4.:/5 (125 download)
Download or read book Evaluation of Tests for Toughness/Abrasion Resistance and Durability/Soundness of Coarse Aggregates written by Y. Wu and published by . This book was released on 1999 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many tests have been developed to empirically characterize aggregate without necessarily strong relationships with the performance of final products incorporating these aggregates. This seems to be particularly true for "toughness and abrasion resistance" and "durability and soundness." Toughness/abrasion resistance and durability/soundness of aggregate are correlated, but represent resistance to degradation when subject to mechanical forces and weathering, respectively. A literature review identified five toughness/abrasion resistance and four durability/soundness test procedures. Sixteen aggregates with a wide range of properties were tested with eight of the identified test procedures. Results from the tests and test precisions were compared.
Author : Eli Cuelho
Publisher :
ISBN 13 :
Total Pages : 58 pages
Book Rating : 4.:/5 (1 download)
Download or read book Comparative Analysis of Coarse Surfacing Aggregate Using Micro-Deval, L.A. Abrasion and Sodium Sulfate Soundness Tests written by Eli Cuelho and published by . This book was released on 2007 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aggregates used in the construction of roads must be durable, abrasion resistant, and freeze thaw resistant in order to perform well in pavement or as base course. The objective of this study was to investigate whether the Micro Deval test will provide better, timelier, and more repeatable information about the quality of an aggregate than the Sodium Sulfate Soundness test. This objective was met by (1) conducting a thorough literature review, (2) testing a variety of soils from across Montana, and (3) analyzing these results to reveal potential trends. The literature review indicated that the Micro Deval test has good repeatability characteristics, and that it correlates well to field performance. Laboratory tests (Micro Deval, L.A. Abrasion, and Sodium Sulfate) were conducted on a variety of soil types to examine the repeatability of each test method, and to examine how well the methods correlate with each other in terms of predicting aggregate durability and degradation. Test results were normalized to facilitate direct comparisons between the three methods. Linear regression of the data points and corresponding confidence intervals were plotted to qualitatively assess agreement or disagreement between test methods. The authors concluded that the Micro Deval test is a suitable replacement for the Sodium Sulfate test as the primary method for evaluating aggregate durability, with limitations. Because there were some inconsistent durability determinations between test methodologies, the authors recommend that the Micro-Deval test results be further supported by a second aggregate durability test whenever the Micro Deval results fall between the cutoff value and plus 30 percent of the cutoff value. In other words, when the Micro Deval test result for an aggregate is between 18 and 24 percent loss, a second test using an alternate method is recommended before any conclusions are made regarding the durability or quality of an aggregate.
Author :
Publisher :
ISBN 13 :
Total Pages : 684 pages
Book Rating : 4.P/5 (25 download)
Download or read book Report written by and published by . This book was released on 2007 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Margaret A. Hanson
Publisher :
ISBN 13 :
Total Pages : 118 pages
Book Rating : 4.:/5 (848 download)
Download or read book Evaluation of aggregate sample durability written by Margaret A. Hanson and published by . This book was released on 1986 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Matthew Brent Roper
Publisher :
ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.:/5 (367 download)
Download or read book Evaluation of Laboratory Durability Tests for Stabilized Aggregate Base Materials written by Matthew Brent Roper and published by . This book was released on 2007 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: A strong correlation was identified between UCS after the freeze-thaw test and UCS after the vacuum saturation test, while very weak correlations were observed between the final dielectric value after tube suction testing and all other response variables. Differences in variability between test results were determined to be statistically insignificant.
Author : Athar Saeed
Publisher : Transportation Research Board National Research
ISBN 13 :
Total Pages : 68 pages
Book Rating : 4.X/5 (3 download)
Download or read book Performance-related Tests of Recycled Aggregates for Use in Unbound Pavement Layers written by Athar Saeed and published by Transportation Research Board National Research. This book was released on 2008 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explores performance-related procedures to test and select recycled hot-mix asphalt and portland cement concrete materials for use in unbound layers of highway pavements. Appendixes A through C of NCHRP Report 598, which cover the literature review and background information, new aggregate tests, and surface dielectric measurements, were published as NCHRP Web-Only Document 119.
Author : PW. Jayawickrama
Publisher :
ISBN 13 :
Total Pages : 13 pages
Book Rating : 4.:/5 (125 download)
Download or read book Micro-Deval Test for the Assessment of Bituminous Aggregate Durability written by PW. Jayawickrama and published by . This book was released on 2007 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bituminous aggregates from a total of 52 sources located in Texas, Oklahoma, Arkansas, New Mexico, and Missouri were evaluated using both Micro-Deval and magnesium sulfate soundness tests. Each aggregate was also characterized using petrography, absorption, and specific gravity. Findings showed that Micro-Deval test is a more repeatable test than the soundness test. Micro-Deval showed a fair to good correlation with soundness and an improved correlation was observed when used along with aggregate absorption values. It is concluded that further research is needed to completely replace soundness tests but the Micro-Deval test could be used as a good quality indicator tool.
Author : Richard Dillon Barksdale
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (267 download)
Download or read book Evaluation of the Effects of Aggregate Properties on Rutting and Fatigue written by Richard Dillon Barksdale and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : M. Shabbir Hossain
Publisher :
ISBN 13 :
Total Pages : 30 pages
Book Rating : 4.:/5 (123 download)
Download or read book Use of the Micro-Deval Test for Assessing the Durability of Virginia Aggregates written by M. Shabbir Hossain and published by . This book was released on 2007 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aggregate is one of the most widely used construction material, and the key aspect of aggregate quality is durability. In this study, the Micro-Deval test, a new test developed in France and modified by Canadians, was studied to evaluate its suitability in assessing the durability of coarse and fine aggregates from Virginia sources. The Micro-Deval and several known aggregate tests were compared. The Micro-Deval test showed a very high potential in evaluating aggregate durability with higher precision and accuracy than the conventional tests such as the magnesium sulfate and Los Angeles abrasion tests. The Micro-Deval test was able to differentiate between good and poor performing aggregates at least 70 percent of the time and was able to identify the quality difference between similar aggregate types with varying degrees of weathering. Because of the study findings, the researchers recommend that the Micro-Deval test be used as a quality control tool for aggregate assessment to supplement the current measures of aggregate quality.
Author :
Publisher :
ISBN 13 :
Total Pages : 122 pages
Book Rating : 4.:/5 (222 download)
Download or read book Evaluation of Different Coarse Aggregates as to Their Durability in Portland Cement Concrete written by and published by . This book was released on 1963 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. H. Gietz
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (775 download)
Download or read book Aggregate Durability Testing Review Final Report written by R. H. Gietz and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : P.T. Bobrowsky
Publisher : CRC Press
ISBN 13 : 1000099946
Total Pages : 476 pages
Book Rating : 4.0/5 ( download)
Download or read book Aggregate Resources written by P.T. Bobrowsky and published by CRC Press. This book was released on 2022-01-27 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aggregate Resources provides a comprehensive collection of 27 diverse scientific papers on aggregate topics, such as geology of deposits, geophysical exploration techniques, deposit prediction and modeling, land-use case studies, production values and trends, geotechnical properties, legislation politics and others. This diversity in subject matter is further enhanced by relying on contributions from a number of countries including Australia, Belgium, Canada, Lebanon, the Netherlands, Norway, South Africa, the United Kingdom and the United States. The range of topical papers and representative countries, coupled with the global significance of the resources prompted the title Aggregate Resources: A global perspective. The book will appeal to all those involved with aggregate resources: geologists, producers, technicians , construction engineers, developers, land-use planners, legislators, academics and the public consumer, especially since all of us are in some manner, directly dependent or indirectly affected by this resource. *Each chapter is a study on a particular area of importance for aggregate producers. Pit & Quarry, April 1998.
