Title:
Sacrificail Cahodic Protection of RC-Structures Using a Zinc-Hydrogel Anode-Investigations on the Effectiveness
Author(s):
M. Raupach and M. Bruns
Publication:
Symposium Paper
Volume:
212
Issue:
Appears on pages(s):
127-142
Keywords:
cathodic protection; reinforcement corrosion; sacrificial anode; zinc-hydrogel
DOI:
10.14359/12682
Date:
6/1/2003
Abstract:
Cathodic protection is used world-wide to protect reinforced concrete structures against reinforcement corrosion. Cathodic protection systems can generally be divided into impressed current systems and systems working with sacrificial anodes. The Zinc-Hydrogel Anode is one of these sacrificail anode systems. This paper presents investigation on the effectiveness of the Zinc-Hydrogel Anode to control rinforcement corrosion. The aim of this investigation was to find out how parameters like reinforcement content and position of the anode are affecting the effectiveness. As a result it was found, that the protection current density and the polarisation of the reinforcement are highly affected by both parameters.