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CLC number: TU470

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Received: 2004-03-27

Revision Accepted: 2004-07-20

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Journal of Zhejiang University SCIENCE A 2005 Vol.6 No.3 P.159~165

10.1631/jzus.2005.A0159


Method of effective evaluation for examination of chloride ion in concrete


Author(s):  SUNG Wen-pei, CHEN Kuen-suan, LIN Hsue-chun

Affiliation(s):  Department of Landscape Design and Management, National Chin-Yi Institute of Technology, Taiwan 41111, China; more

Corresponding email(s):   sung809@chinyi.ncit.edu.tw

Key Words:  Concrete quality control, Multi-laboratory, Test error, Accuracy degree, Precision degree, Natural estimator, Acceptance testing, Examination methods, Evaluation criteria


SUNG Wen-pei, CHEN Kuen-suan, LIN Hsue-chun. Method of effective evaluation for examination of chloride ion in concrete[J]. Journal of Zhejiang University Science A, 2005, 6(3): 159~165.

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author="SUNG Wen-pei, CHEN Kuen-suan, LIN Hsue-chun",
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publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2005.A0159"
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%A CHEN Kuen-suan
%A LIN Hsue-chun
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%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2005.A0159

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T1 - Method of effective evaluation for examination of chloride ion in concrete
A1 - SUNG Wen-pei
A1 - CHEN Kuen-suan
A1 - LIN Hsue-chun
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VL - 6
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SP - 159
EP - 165
%@ 1673-565X
Y1 - 2005
PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.2005.A0159


Abstract: 
The chloride ion contained in reinforced concrete seriously corrodes the steel surface and damages concrete, resulting in inferior reinforced concrete that strength seriously compromises the entire structure’s safety. Consequently, the examination of chloride ions contained in reinforced concrete becomes an important part of a complete quality control procedure. To effectively check the concentration of chloride ions in concrete, the evaluation process should be accurate and precise. Laboratory data obtained using existing evaluation methods for the examination of chloride ion are not sufficiently objective to yield reliable results with accuracy and consistency for each sample. An evaluation algorithm with capability to define indices of precision degree (Ep) and accuracy degree (Ea) is presented in this paper. The authors established a statistically reliable index of unbiased estimators and equations to critically examine the laboratory methods’ precision, accuracy degrees and application value for measuring chlorine ion concentration in reinforced concrete.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

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