Evaluation of deteriorated concrete structures in aggressive environments by nondestructive methods

Author(s): Amir Haji Esmaili, Masoud Moradian, Mohammad Hossein Eftekhar, Pouyan Hosseini, Mohammad Shekarchi and Ebrahim Sharifi
Paper category: conference
Book title: Microstructural-related Durability of Cementitious Composites
Editor(s): Guang Ye, K. van Breugel, Wei Sun and Changwen Miao
Print ISBN: 978-2-35158-129-2
e-ISBN: 978-2-35158-123-0
Publisher: RILEM Publications SARL
Publication year: 2012
Pages: 292 - 299
Total Pages: 8
Language: English

Abstract: Concrete deterioration and corrosion of reinforcement in severe condition cause enormous damages to reinforced concrete structures. In recent years, nondestructive methods have been widely used since they are highly suitable for the fast exploration and do not cause damage to the structure. Many researches have been performed to find the relation between these methods and mechanical and durability properties of concrete; therefore use of these methods and the assessment accuracy have been increased. In this study, a comprehensive nondestructive testing method employing Impact Echo, Schmidt hammer, rate of corrosion and in-situ electrical resistivity was performed on four concrete structures to evaluate the deterioration in severe condition. The result confirms the effectiveness of these methods and its compatibility with concrete properties.
Keywords: Concrete Durability, Corrosion, Nondestructive tests, Impact Echo, Electrical Resistivity

Online publication: 2012-05-16
Publication Type: full_text
Public price (Euros): 0.00