The use of discrete sacrificial anodes in reducing corrosion rate in chloride-contaminated RC

Author(s): P.A. Arito, H. Beushausen, M.G. Alexander, M. Otieno
Paper category: Conference
Book title: Concrete Repair, Rehabilitation and Retrofitting III (ICCRRR)
Editor(s): M.G. Alexander, H.-D. Beushausen, F. Dehn, P. Moyo
Print ISBN: 978-0-415-89952-9
Publisher: Taylor & Francis Group
Pages: 359- 360
Total Pages: 2
Language: English

Abstract: 
The increasing number of corrosion-affected Reinforced Concrete (RC) structures in South Africa requires economical, technically sound and innovative concrete repair technologies. Currently, in South Africa, the most commonly used repair techniques are patch repairs and corrosion inhibitors. Other potentially successful methods such as sacrificial anodes are rarely exploited. This paper presents preliminary results from an on-going study aimed at investigating the effectiveness of Sacrificial Anode Cathodic Protection (SACP) systems for service life extension of chloride-contaminated RC structures in South Africa. The experimental set-up comprised two RC slab specimens. The SACP system used in this study comprised discrete zinc disks placed in a cylinder of a proprietary high alkaline mortar. Provisional results show that corrosion rates in chloride contaminated RC can successfully be reduced by the discrete anodes used in this study.

Online publication: 2014
Publication Type: abstract_only
Public price (Euros): 0.00