三乙烯四胺双向电渗技术长期效果试验研究

发布时间：2018-03-15 22:17

本文选题：干湿循环　切入点：腐蚀电流　出处：《混凝土》2017年02期 　论文类型：期刊论文

【摘要】：沿海、盐碱地电厂等混凝土建、构筑物受盐害作用,导致其使用寿命降低。故引入对三乙烯四胺双向电渗长期效果的研究。对混凝土试块进行恒流通电,去极化后,进行半年的干湿循环测试,每次均对试块钢筋的腐蚀电流和腐蚀电势以及钢筋/溶液界面电荷转移电阻进行观测;半年后,对其中氯离子含量、阻锈剂含量进行测试。结果表明:双向电渗后,其电化学参数最稳定,钢筋处于钝化状态,而不处理的和电化学除氯处理的钢筋已先后锈蚀。同时,半年后,阻锈剂仍有一定残余;经过双向电渗技术处理的试块抵抗氯离子侵入能力最强。
[Abstract]:The coastal saline soil, concrete power plant construction, the salt damage of structures, leading to reduced lifespan. So the study on the introduction of three ethylene four amine. The long-term effect of electroosmosis two-way concrete block constant circulation of electricity, depolarization, dry wet cycle test for half a year, each time of specimen corrosion the current and the corrosion potential and reinforcement / solution interface charge transfer resistance was observed; after half a year, the content of chloride ion, corrosion inhibitor were tested. The results showed that the electrochemical parameters of bidirectional electroosmosis, the most stable, reinforced in a passive state without processing and electrochemical removal of chlorine treatment has reinforced corrosion. At the same time, after half a year, there is still some residual rust inhibitor; after two treatment electroosmosis technology block resistance chloride ion invasion was the strongest.

【作者单位】：中国电力工程顾问集团中南电力设计院有限公司;杭州市质量技术监督检测院;浙江大学结构工程研究所;
【基金】：国家自然基金(51408534) 浙江省自然基金(LQ14E080010) 杭州市科技计划(20131831K31,20140533B42,20130533B18) 江苏省交通运输科技项目(2015T18) 浙江省质量技术监督系统科研计划(20130243,20140229,20160137) 杭州市重大科技创新专项(20142011A41)
【分类号】：TU528

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