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利用电化学检测技术和海水浸泡试验等方法 ,观测和研究了经筛选研制的LD_2复合缓蚀剂对海水介质中钢筋腐蚀电化学行为的影响 ,考察和评价了复合缓蚀剂对钢筋的阻锈作用 .结果表明 ,LD_2复合缓蚀剂主要起阳极型缓蚀剂作用 .在海水中加入 2 5 g·L- 1复合缓蚀剂后 ,钢筋的腐蚀电位提高约 0 .2 2 0V ,腐蚀电流降低至未加缓蚀剂的 1% ,缓蚀效率达 99% .钢筋混凝土试样在海水中浸泡 2年 ,表明混凝土中加入占水泥重量 1.0 %～ 2 .5 %LD_2复合缓蚀剂时 ,能有效阻止混凝土中钢筋的腐蚀
Electrochemical detection technology and seawater immersion test methods were used to observe and study the effects of LD_2 composite corrosion inhibitors on the corrosion behavior of steel bars in seawater. The effects of composite corrosion inhibitors on corrosion resistance of steel bar were investigated and evaluated. The results showed that the LD_ (2) composite corrosion inhibitor mainly played the role of anode type corrosion inhibitor.After adding 25 g · L -1 composite corrosion inhibitor to seawater, the corrosion potential of the steel increased by about 0.220 V and the corrosion current Reduced to 1% without corrosion inhibitor, and the corrosion inhibition efficiency reached 99%. The samples of reinforced concrete were soaked in seawater for 2 years, indicating that when adding 1.0% ~2.5% of the composite corrosion inhibitor to the concrete, Can effectively prevent the corrosion of steel in concrete