Corrosion & Corrosion prevention Ⅱ

[1154] EFFECTIVE LENGTH OF CATHODIC PROTECTION EMBEDDED STEEL WITH SACRIFICIAL ANODE UNDER NON-HOMOGENEOUS CHLORIDE ENVIRONMENT

Rahmita Sari RAFDINAL¹, Hidenori HAMADA², Yasutaka SAGAWA², Daisuke YAMAMOTO² (1.Kyushu　University工学府建設システム工学専攻 2.九州大学Faculty of Engineering)

Keywords:cathodic protection, effective length, embedded steel, sacrificial anode

This study was carried out to identify the effective length of embedded segmented steel element with sacrificial anode exposed to non-homogeneous chloride environment against macro-cell corrosion. Four concrete specimens which consist of chloride contaminated and non-chloride contaminated concrete were evaluated. Results show that sacrificial anode can protect embedded steel in the boundary of non-homogeneous chloride environment with the effective length is about 120 mm until 200 mm from edge of the boundary.