Paper Title
EFFECTIVE DISTANCE OF CATHODE PROTECTION OF CONCRETE PILE SPECIMEN USING ZINC MESH SACRIFICIAL ANODE

Abstract
Abstract - The corrosion of reinforced steel in concrete is significant in marine environment. Reinforced concrete bridges are susceptible to rapid deterioration when exposed to marine environments. Salt-induced damage stands out as one of the primary factors leading to the deterioration of concrete bridges and port structures. Especially, the splash and tidal zones around water line are comparatively important in terms of safety and life-time point of view. During the last several decades, cathodic protection has been commonly accepted as an effective way for corrosion control in concrete structures. A newly developed sacrificial anode made of Zn-Mesh has been introduced and is now being implemented for cathodic protection on reinforced concrete bridges in marine environments. The specific parameters related to the Zn-Mesh cathodic protection technique have not been thoroughly understood. This study aims to examine the extent of influence exerted by the Zn-Mesh sacrificial anode along the concrete column under elevated temperatures.Column specimens measuring approximately 100 cm in height, featuring eight rebars segmented into 10 cm sections, were utilized to assess the fluctuation of cathodic protection potential relative to the distance from the Zn-Mesh sacrificial anode. These measurements were conducted under natural seawater conditions at both 10°C and 40°C temperatures.The variations in cathodic protection potential and current attenuation along the column specimens have been analyzed to inform the optimal design of cathodic protection using Zn-Mesh sacrificial anodes. Keywords - Concrete, Cathodic Protection, Sacrificial Anode, Potential, Current