电化学方法检测混凝土横梁中高强钢丝的腐蚀

1.七二五研究所青岛分部,青岛,266071;华中科技大学化学系,武汉,430074

2.福州市政工程管理处,福州,350004

3.福州市政工程管理处,福州,350004

4.七二五研究所青岛分部,青岛,266071

5.福州市政工程管理处,福州,350004

6.七二五研究所青岛分部,青岛,266071

ELECTROCHEMICAL DETERMINATION OF CORROSION FOR THE HIGH STRENGTH STEEL WIRE IN CONCRETE CROSSBEAM

通过测量镦头自腐蚀电位等参数,判断吊杆钢丝的腐蚀概率;以吊杆钢丝和CCMP-I检测探头分别作为研究电极,运用恒电量技术检测获得Rp值和Tafel常数,从而计算出腐蚀速率icorr.检测结果表明:压浆对增强钢丝的保护有成效;由于锈蚀原因不同,各短吊杆位置钢丝的锈蚀速率差异很大.

[1]	Rodriguez P et al.Method for studying corrosion in reinforced concrete[J].Magazine of Concrete Research,1994(46):81.
[2]	Glass G K et al.An assessment of the coulostatic method applied to the corrosion of steel in concrete[J].Corrosion Science,1995,37(04):597.
[3]	Rodriguez P et al.Use of the coulostatic method for measuring corrosion rates of embedded metal in concrete[J].Magazine of Concrete Research,1994(46):91.
[4]	A. M. Hassanein;G. K. Glass;N. R. Buenfeld .The use of small electrochemical perturbations to assess the corrosion of steel in concrete[J].NDT & E international: Independent nondestructive testing and evaluation,1998(4):265-272.
[5]	赵永韬,吴建华,赵常就.评价混凝土中钢筋腐蚀的恒电量技术[J].电化学,2001(03):258-266.
[6]	Andrade C;Gonzalez J A .Quantitative measurements of corrosionrate of reinforcing steel embedded in concrete using polarization re-sistance measurements[J].WerKstoffe und Korrosion,1978,29:515.

上一张下一张

计量

作者相关

文章评分