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Author by : B. Chojnacki
Languange Used : en
Release Date : 1981
Publisher by :
ISBN : OCLC:15961510
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Download precision of the standard concrete core compressive strength test or read precision of the standard concrete core compressive strength test online books in PDF, EPUB and Mobi Format. Click Download or Read Online button to get precision of the standard concrete core compressive strength test book now. Note:! If the content not Found, you must refresh this page manually.Precision Of Selected Concrete Test Methods
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Author by : Paul E. Benson
Languange Used : en
Release Date : 1976
Publisher by :
ISBN : UCBK:C101056885
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Specifications For Structural Concrete Aci 301 05 With Selected Aci References
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Author by : American Concrete Institute
Languange Used : en
Release Date : 2005
Publisher by : American Concrete Institute
ISBN : 9780870311949
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Results Of An Interlaboratory Concrete Testing Program
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Author by : RJ. Gray
Languange Used : en
Release Date : 1990
Publisher by :
ISBN : OCLC:1251676789
Measures of the within- and between-laboratory variability associated with the standard test method for determining the compressive strength of cylindrical portland cement concrete specimens have been derived from data obtained in three interlaboratory testing programs operating in western Canada. These data have been analyzed using appropriate ASTM standard practices to provide estimates of repeatability (within-laboratory) and reproducibility (between-laboratory) standard deviation values and corresponding precision indices (difference "two"-standard-deviation limits). Both measures of variability have been found to vary linearly with the compressive strength of the test concrete, and hence the standard deviation and precision values are best expressed as linear functions of this strength. The resulting reproducibility (between-laboratory) precision index values are particularly important in that they provide guidance as to the level of the component of variability to be expected when two or more laboratories are testing the same batch of portland cement concrete for its compressive strength....
Testing Of Concrete In Structures
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Author by : John H. Bungey
Languange Used : en
Release Date : 2006-01-12
Publisher by : CRC Press
ISBN : 9781482264685
This classic reference has been thoroughly updated and is ideal for the non-specialist civil engineer involved in the assessment, repair or maintenance of concrete structures. Topics have been expanded to reflect significant advances in the field, including integrity assessment, sub-surface radar, corrosion assessment and localized dynamic response tests. It also covers new trends in equipment and procedures, such as in automated test methods and developments in digital technology and emphasizes performance monitoring, and includes new and updated references to standards....
Non Destructive In Situ Strength Assessment Of Concrete
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Author by : Denys Breysse
Languange Used : en
Release Date : 2021-04-27
Publisher by : Springer Nature
ISBN : 9783030649005
The book presents the work of the RILEM Technical Committee 249-ISC. Addressing the effective application of new recommendations for non-destructive in situ strength assessment of concrete, it provides information about the different steps of the investigation and processing of test results, until the delivery of strength estimates, and includes tables giving the minimum required number of cores in a variety of situations as well as several examples of how the recommendations can be used in practice. The book explores a topic which is of major importance, i.e. the assessment of concrete compressive strength in existing structures. This property (both mean and standard deviation) is a key input in many cases, such as the reinforcement of structures, the safety checking, the extension of service life. As the new RILEM recommendations imply a deep revision (and improvement) of field practice, the book is intended for managers of structures, structural engineers and specialists of NDT that have to answer these issues. More widely, it will benefit engineers and students who are interested in NDT and in the safety analysis of structures....
Results Of An Interlaboratory Test Program
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Author by : S. Kennedy
Languange Used : en
Release Date : 1995
Publisher by :
ISBN : OCLC:1251678464
Although both ASTM and CSA have had standards for testing the compressive strength of concrete cylinders since the 1920s, neither standard contains a statement of the within- and between-laboratory precision of its test method as prescribed by Practice for use of the Terms Precision and Bias in ASTM Test Methods (ASTM E 177). This paper describes an interlaboratory study performed by 16 CSA-certified Ontario testing laboratories in accordance with Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method (ASTM E 691). The analysis shows that the variability of the test results increases with the mean strength of the concrete. A precision statement based on the results reported here is recommended for inclusion in Test Method for Compressive Strength of Cylindrical Concrete Specimens (ASTM C 39) and CSA A23.2-9C (Compressive Strength of Cylindrical Concrete Specimens)....
Judging The Precision And Reliability Of Standard Test Methods
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Author by : S. Popovics
Languange Used : en
Release Date : 1979
Publisher by :
ISBN : OCLC:1251673191
Results of materials tests are influenced not only by the measured property but also by such distorting factors as random and regular errors in testing or sampling. Knowledge of the magnitude of such factors is useful, since the smaller their contribution to the test results the more reliable the results are. It is argued that the most suitable method of obtaining such knowledge is breaking down the total variation in test results into meaningful components such as testing variance, sampling variance, and material variance. Application of this method is illustrated for the ASTM Test for Slump of Portland Cement Concrete (C 143-74). This illustration also shows that, contrary to general belief, this test is no less reliable than the standard tests for compressive strength, air content, or unit weight determinations of concrete....
Preprints Quality Control Of Concrete Structures
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Author by :
Languange Used : en
Release Date : 1979
Publisher by :
ISBN : UCAL:B3696154
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Determination Of The Relative Compressive Strength Of Concrete Cores Of Various Sizes And The 6 X 12 Standard Test Cylinder
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Author by : Edward Faggett
Languange Used : en
Release Date : 1975
Publisher by :
ISBN : OCLC:1425119
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