Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Non-destructive testing of concrete strength: statistical control
Abstract Some problems of statistical control of concrete strength in non-destructive testing are considered. The procedures for rejection of gross errors and accounting for the actual law of concrete strength distribution are given. In the non-destructive control, the reliability and accuracy of a test result, $ f_{i} $, as well as the probability of a specified concrete strength, f′c, should be the same as in testing with the use of a standard method (specimen testing). Proceeding from this concept, known acceptance criteria are analysed and those recommended by the author are described. The use of the latter permits a considerable reduction of the consumer's risk. Procedures for specifying a required average strength, $ f_{cr} $, are also analysed. In the use of the proposed acceptance criteria, the value of $ f_{cr} $ may be reduced in many cases, and hence the cement content may be decreased.
Non-destructive testing of concrete strength: statistical control
Abstract Some problems of statistical control of concrete strength in non-destructive testing are considered. The procedures for rejection of gross errors and accounting for the actual law of concrete strength distribution are given. In the non-destructive control, the reliability and accuracy of a test result, $ f_{i} $, as well as the probability of a specified concrete strength, f′c, should be the same as in testing with the use of a standard method (specimen testing). Proceeding from this concept, known acceptance criteria are analysed and those recommended by the author are described. The use of the latter permits a considerable reduction of the consumer's risk. Procedures for specifying a required average strength, $ f_{cr} $, are also analysed. In the use of the proposed acceptance criteria, the value of $ f_{cr} $ may be reduced in many cases, and hence the cement content may be decreased.
Non-destructive testing of concrete strength: statistical control
Leshchinsky, A. M. (Autor:in)
1992
Aufsatz (Zeitschrift)
Englisch
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