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Author : R. W. Muethel
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (326 download)
Download or read book Investigation of the Air Content of Plastic Vs Hardened Concrete written by R. W. Muethel and published by . This book was released on 1995 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Albert Dennis Mitchell
Publisher :
ISBN 13 :
Total Pages : 200 pages
Book Rating : 4.:/5 (396 download)
Download or read book Investigation of Hardened Portland Cement Concrete Air Content Using Plastic and Semi-hardened Values written by Albert Dennis Mitchell and published by . This book was released on 1991 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David R. Reidenouer
Publisher :
ISBN 13 :
Total Pages : 63 pages
Book Rating : 4.:/5 (133 download)
Download or read book Air Content of Plastic and Hardened Concrete written by David R. Reidenouer and published by . This book was released on 1974 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Todd Hanson
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (135 download)
Download or read book Plastic Air Content Versus Hardened Air Content by High Pressure Air Meter written by Todd Hanson and published by . This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plastic air content is typically tested by the pressure method, ASTM C138. Loss of air content through the paver has been shown to exceed 2 percent at times. Research has shown that early deterioration of pavements in Iowa may be directly or indirectly related to low or inadequate air content. Hardened air content is typically checked using the linear traverse method, ASTM C457. The linear traverse method is very time consuming and could not be used on a production scale. A quick and effective method of testing in place air content is needed. Research has shown a high degree of correlation with the high-pressure method of determining air content of hardened concrete versus plastic air content in laboratory conditions. This research indicated that air contents are more variable when comparing core results to plastic air content, although the overall average for the air content was comparable. Perhaps, the location of the plastic air content test, obtained from construction records, versus location of the cores was not as accurate as needed.
Author :
Publisher :
ISBN 13 :
Total Pages : 230 pages
Book Rating : 4.:/5 (891 download)
Download or read book Field Study of Air Content Stability in the Slipform Paving Process written by and published by . This book was released on 2012 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study evaluated the impacts of construction on the air content and air-void system structure of Portland cement concrete pavements. The primary intent was to quantify the air content of fresh concrete before and after it has gone through the slipform paver. The air-void system parameters of hardened concrete were then assessed using cast and extracted core specimens. The results of the air content testing on fresh concrete and the concrete cylinder specimens cast in the field suggested that there is some loss of air as the concrete passes through the paver. Laboratory testing performed on cores extracted from the pavement did not provide any conclusive evidence that entrained air is lost during the slipform paving process. In fact, many of the extracted cores had measured air content values that were much higher than the specification requirement. If excessive, this could result in increased permeability and low-strength related issues. Although a rigorous statistical analysis was not performed, the results suggest that the air content testing on fresh concrete is not capturing the true air content of the concrete placed with a slipform paver. The fresh concrete air content is generally lower than the air content measured in the cores.
Author : E. E. McCoy (Jr.)
Publisher :
ISBN 13 :
Total Pages : 80 pages
Book Rating : 4.:/5 (359 download)
Download or read book High-pressure Test for Determining Air Content of Hardened Concrete written by E. E. McCoy (Jr.) and published by . This book was released on 1958 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bernard Erlin
Publisher :
ISBN 13 :
Total Pages : 6 pages
Book Rating : 4.:/5 (198 download)
Download or read book Air Content of Hardened Concrete by a High-pressure Method written by Bernard Erlin and published by . This book was released on 1962 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John Eggers
Publisher :
ISBN 13 :
Total Pages : 52 pages
Book Rating : 4.3/5 (555 download)
Download or read book Air Void Analyzer for Plastic Concrete written by John Eggers and published by . This book was released on 2008 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Joseph F. Lamond
Publisher : ASTM International
ISBN 13 : 0803133677
Total Pages : 661 pages
Book Rating : 4.8/5 (31 download)
Download or read book Significance of Tests and Properties of Concrete and Concrete-making Materials written by Joseph F. Lamond and published by ASTM International. This book was released on 2006 with total page 661 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 74 pages
Book Rating : 4.:/5 (1 download)
Download or read book Investigation of Critical Quality Assurance Parameter Variations for Concrete written by and published by . This book was released on 1996 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David Whiting
Publisher : Transportation Research Board National Research
ISBN 13 :
Total Pages : 96 pages
Book Rating : 4.:/5 (359 download)
Download or read book Control of Air Content in Concrete written by David Whiting and published by Transportation Research Board National Research. This book was released on 1983 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hamdi Celik Ozyildirim
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (1 download)
Download or read book Comparison of Air Void Content Measurements in Fresh Versus Hardened Concretes written by Hamdi Celik Ozyildirim and published by . This book was released on 1990 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study compares the air content of freshly mixed and hardened concretes. At the fresh stage, pressure meters (Types A and B) and a volumetric meter were used to determine the air content. At the hardened stage, the air content was calculated using the linear traverse method described in ASTM C 457, which is a microscopical procedure. The unit weight and compressive strength of the concretes were also determined. The results show that, at the ranges commonly used in the construction of pavements and bridges, the air content of fresh concrete measured by pressure meters and that determined by the microscopical method for essentially the same concrete after hardening are, for practical purposes, the same. The air content obtained by a volumetric meter as normally run in the field is generally lower than that obtained for the same hardened concretes by the microscopical method. The unit weight and compressive strength correlate well with the air content. It was also shown that adding water to concrete can significantly increase the air content, as well as the slump. Thus, a higher air content in hardened concretes than that indicated by initial measurements with a pressure meter is likely to be present if water is added during placement.
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Author : Leo P. H. (Leo Pieter H.) Meyer
Publisher : National Library of Canada
ISBN 13 : 9780315140820
Total Pages : 320 pages
Book Rating : 4.1/5 (48 download)
Download or read book Determination of Air Content of Hardened Concrete Using Image Analysis [microform] written by Leo P. H. (Leo Pieter H.) Meyer and published by National Library of Canada. This book was released on 1983 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 92 pages
Book Rating : 4.:/5 (1 download)
Download or read book Expanded Study on the Effects of Aggregate Coating and Films on Concrete Performance written by and published by . This book was released on 2007 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Research Council (U.S.). Highway Research Board
Publisher :
ISBN 13 :
Total Pages : 98 pages
Book Rating : 4.:/5 (359 download)
Download or read book Observations of the Performance of Concrete in Service written by National Research Council (U.S.). Highway Research Board and published by . This book was released on 1970 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William O. Tynes
Publisher :
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.3/5 (91 download)
Download or read book Investigation of High-strength Frost-resistant Concrete written by William O. Tynes and published by . This book was released on 1975 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : American Concrete Institute
Publisher : American Concrete Institute
ISBN 13 : 0870311948
Total Pages : 660 pages
Book Rating : 4.8/5 (73 download)
Download or read book Specifications for Structural Concrete, ACI 301-05, with Selected ACI References written by American Concrete Institute and published by American Concrete Institute. This book was released on 2005 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt:
