Critical parameters affecting mass loss of steel reinforcement. Issue 5 (23rd July 2019)

• Record Type: Journal Article
• Authors: Drakakaki, Argyro; Apostolopoulos, Alkiviadis; Apostolopoulos, Charis
• Is Part Of: International journal of structural integrity. Volume 11:Issue 5(2020)
• Page Start: 686
• Page End: 697
• Publication Date: 2019-07-23
• Subjects: Corrosion -- Mass loss -- Exposed length -- Impressed current technique -- Salt spray chamber -- Steel reinforcement; Structural engineering -- Research -- Periodicals; 620.11205
• DOI: 10.1108/IJSI-11-2018-0081
• Languages: English
• ISSNs: 1757-9864

Abstract

Abstract : Purpose: The safety of reinforced concrete structures is generally related to the expected service life of their individual materials. Corrosion damage manifesting on steel reinforcement is usually underestimated, although it greatly affects both load bearing capacity and plastic deformation limits of steel reinforcement. Corrosion damage degree has a great impact on the life expectancy of structures. This paper aims to discuss these issues. Design/methodology/approach: In the present study, an effort has been made to examine and present critical parameters, which are significantly responsible for the differentiation of the corrosion damage level, as far as mass loss is concerned. Consequently, the size effect of the exposed – to the aggressive conditions – area of the specimen, as well as the volume of the protected (against corrosion) area, was examined in detail. Findings: Differential aeration greatly affects the results of corrosion on the material, given that under both high and low oxygen concentration corrosion process is still ongoing. Originality/value: Findings proceeded are worth mentioning, as they may contribute to a more pertinent evaluation of the corrosion damage (as far as mass loss is concerned), restricting the risk of erroneous predictions concerning the mechanical behavior of steel reinforcement.