𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Ten-year results of galvanic sacrificial anodes in steel reinforced concrete

✍ Scribed by G. Sergi

Publisher
John Wiley and Sons
Year
2010
Tongue
German
Weight
777 KB
Volume
62
Category
Article
ISSN
0947-5117

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Zinc sacrificial anodes have been included in patch repairs to steel reinforced concrete structural elements suffering from corrosion since the mid‐1990s. A number of these anode‐containing repairs have been monitored with time. One of the first monitored sites was of a locally repaired cross beam of a bridge structure in Leicester, UK, which has now completed 10 years since its original repair and anode installation. This paper reviews the performance of the anodes installed at the Leicester site in terms of anode current output and steel reinforcement polarisation and corrosion rate over the period. It also presents results of analysis of recovered anodes exposed for 10 years which still show electrolyte continuity, uniform consumption of the zinc and coherent encasing mortar. The knowledge gained from the 10 year results has enabled the development of new, higher current output anodes, which are now trialled in this and other sites.

πŸ“œ SIMILAR VOLUMES

Ten-year field exposure tests on the end
Ten-year field exposure tests on the endurance of reinforced concrete in harbor works
✍ Chen Boqi; Hong Dinghai; Guo Hengquan; Zhuang Yinghao πŸ“‚ Article πŸ“… 1983 πŸ› Elsevier Science 🌐 English βš– 598 KB

This report is written on the basis of the summary on a tenyear field exposure tests made at the reinforced concrete observation stations in Zhanjiang, Shanghai and Tianjin. Through the exposure tests at the sites, detailed studies were made and various factors causing corrosion of reinforcements in

Influence of cathode-to-anode area ratio
Influence of cathode-to-anode area ratio and separation distance on galvanic corrosion currents of steel in concrete containing chlorides
✍ C. Arya; P.R.W Vassie πŸ“‚ Article πŸ“… 1995 πŸ› Elsevier Science 🌐 English βš– 597 KB

Corrosion of steel embedded in concrete was modelled using a 4m long beam containing a bar in seven segments, one mild steel and six stainless steel, which could be electrically connected or isolated by external switches. The concrete mix was dosed with 3% Cl to initiate corrosion. The current flowi