Estimation of spatial damage in concrete structures using semi-variogram analysis

Title: Estimation of spatial damage in concrete structures using semi-variogram analysis
Author(s): Tetsuya Suzuki, Tatsuo Naka and Masayasu Ohtsu
Paper category : conference
Book title: International RILEM Conference on Advances in Construction Materials Through Science and Engineering
Editor(s): Christopher Leung and K.T. WAN
ISBN: 978-2-35158-116-2
e-ISBN: 978-2-35158-117-9
Publisher: RILEM Publications SARL
Publication year: 2011
Pages: 351 - 357
Total Pages: 7
Nb references: 7
Language: English

Abstract: Degradation of concrete surface layers could occur due to external effects, which normally lead to changes physical properties. In order to maintenance and management of concrete structures, it is desirable to evaluate not only defects but also the degree of damage. In this study, quantitative damage evaluation of concrete is proposed by applying infrared thermography method and the semi-variogram analysis. The semi-variogram analysis is a quantitative evaluation method of the spatial distribution of physical properties. In situ examination was conducted in the two agricultural concrete canal walls. The semi-variogram appeared different semi-variance characteristics depending on the damage degree. The damage level could be reasonably quantified with the semi-variance. By evaluating the damage from the semi-variogram analysis using infrared image, the damage of concrete surface layer is quantitatively evaluated.

Online publication: 2011-10-31
Publication type : full_text
Public price (Euros): 0.00