TY - JOUR
T1 - Toward automated non-destructive diagnosis of chloride attack on concrete structures by near infrared spectroscopy
AU - Watanabe, A.
AU - Tokuda, S.
AU - Mizuta, Y.
AU - Miyamoto, S.
AU - Nakanishi, T.
AU - Furukawa, H.
AU - Minagawa, H.
N1 - Funding Information:
We would like to thank Professor Makoto Hisada for providing valuable advice on this work. We appreciate Ms. Fang Lei for technical assistance with optical measurements. We are grateful to Ms. Kazuko Haga (Taiheiyo Consultant Co., Ltd.) for her attentive support for the synthesis and evaluation of pure hydroxides and XRD-Rietveld measurements of cement paste samples. We also thank Mr. Yohei Hayasaka (Deplo-Tech Co., Ltd) for supporting us during the X-ray fluorescence measurements of the cement paste samples. This work was supported by JST-CREST ( JPMJCR18T1 ).
Publisher Copyright:
© 2021 The Author(s)
PY - 2021/10/25
Y1 - 2021/10/25
N2 - This is a fundamental study of a non-destructive and contactless equipment to evaluate the chloride ion on concrete, with near infrared spectroscopy. Non-destructive measurements on Friedel's salt, generated by ingress of chloride ion into concrete, have been studied; characteristic absorption unique to each substance was utilized to qualitative and quantitative analyses. However, there has been a difficulty in separating absorption peak of Friedel’ salt from that of other hydrates. This study investigates the method to extract the absorption peak of Friedel's salt by Bayes’ theorem for quantitative evaluation, and its validity was confirmed using some conventional methods.
AB - This is a fundamental study of a non-destructive and contactless equipment to evaluate the chloride ion on concrete, with near infrared spectroscopy. Non-destructive measurements on Friedel's salt, generated by ingress of chloride ion into concrete, have been studied; characteristic absorption unique to each substance was utilized to qualitative and quantitative analyses. However, there has been a difficulty in separating absorption peak of Friedel’ salt from that of other hydrates. This study investigates the method to extract the absorption peak of Friedel's salt by Bayes’ theorem for quantitative evaluation, and its validity was confirmed using some conventional methods.
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U2 - 10.1016/j.conbuildmat.2021.124796
DO - 10.1016/j.conbuildmat.2021.124796
M3 - Article
AN - SCOPUS:85114670728
SN - 0950-0618
VL - 305
JO - Construction and Building Materials
JF - Construction and Building Materials
M1 - 124796
ER -