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利用电化学方法研究了 3号碳钢在两种特制导电水泥中的腐蚀电流 Icorr和极化电阻 Rp 随时间的变化关系 ,求出了 3号碳钢在两种导电水泥中的年腐蚀速度 ,并确定了其在两种导电水泥中的耐腐蚀等级。实验表明 ,3号碳钢在导电水泥 A中的腐蚀速度小于 0 .0 3 m m/ a,符合防雷接地技术的要求 ,从而依此确定导电水泥 A是一种用于防雷接地技术较理想的材料
The relationship between corrosion current Icorr and polarization resistance Rp of No.3 carbon steel in two types of special conductive cement was studied by electrochemical method and the annual corrosion rate of No.3 carbon steel in two kinds of conductive cement was calculated. And determine its corrosion resistance in two types of conductive cement. Experiments show that the corrosion rate of No.3 carbon steel in conductive cement A is less than 0.3 mm / a, which is in line with the requirements of lightning protection grounding technology, so that conductive cement A is more ideal for lightning protection grounding s material