TY - GEN
T1 - The use of discrete sacrificial anodes in reducing corrosion rate in chloride-contaminated RC
AU - Arito, P. A.
AU - Beushausen, H.
AU - Alexander, M. G.
AU - Otieno, M.
PY - 2012
Y1 - 2012
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84867385310&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84867385310
SN - 9780415899529
T3 - Concrete Repair, Rehabilitation and Retrofitting III - Proceedings of the 3rd International Conference on Concrete Repair, Rehabilitation and Retrofitting, ICCRRR 2012
SP - 999
EP - 1002
BT - Concrete Repair, Rehabilitation and Retrofitting III - Proceedings of the 3rd International Conference on Concrete Repair, Rehabilitation and Retrofitting, ICCRRR 2012
T2 - 3rd International Conference on Concrete Repair, Rehabilitation and Retrofitting, ICCRRR 2012
Y2 - 3 September 2012 through 5 September 2012
ER -