Corrosion Prevention of Reinforcement Steel in Mortar through Small Metal Piece Additions
By K. Kawata, S. Sakashita, Y. Hamazaki and K. Sugimoto
Concrete Journal, Vol.38, No.2, Feb. 2000
- Synopsis
- Corrosion behavior in reinforcement steel in mortar with varying small metal piece content was investigated through immersion testing in 3%NaCl for 363 days. Rusted area of the reinforcement steel after immersion testing, which correlated well with corrosion rate obtained by electrochemical impedance spectroscopy, decreased as steel fiber content increased. Moreover steel powder addition could also prove effective in decreasing the corrosion rate of the reinforcement steel. It was thought that its corrosion prevention was probably due to the consumption of dissolved oxygen in concrete due to small metal piece corrosion.
- Keywords:
- corrosion, steel reinforcement, concrete, steel piece, steel fiber, steel powder, electrochemical impedance spectroscopy (EIS), mortar
