钢筋混凝土电化学萃取氯离子研究进展

State-of-the-art developments on electrochemical chloride extraction of reinforced concrete

电化学萃取氯离子作为一项新型高效的钢筋混凝土防护技术,通过外加电场迫使混凝土中的氯离子从钢筋附近迁移至混凝土表面,同时使钢筋重新恢复钝化。本文综述了近年来国内外在此方面的研究进展,系统地介绍了电化学萃取氯离子的基本原理、装置选择与萃取参数确定、影响因素和电化学萃取氯离子对混凝土宏、微观性能的影响。同时结合目前研究现状对需要进一步研究的问题提出了相应的建议。

Hydroelectric ecological line is an innovative management method of environmental protection for guiding hydropower development scientifically and promoting ecological civilization construction. At present, study of hydroelectric ecological line is still in the preliminary stage of exploration. In this paper, a theoret- ical framework of hydroelectric ecological line has been built, elaborating its concept, connotation, charac- teristics and basic principles. The core of hydropower planning red line is the determination of planning red line, element control line and management line. Based on the theoretical framework, threshold determina- tion of key ecological control elements of downstream channel has been discussed. This paper lays the foun- dation for further study of hydroelectric ecological line.