Galvanic interaction between carbon fiber reinforced plastic (CFRP) composites and steel in chloride contaminated concretes
Conference
·
OSTI ID:351779
- Univ. of South Florida, Tampa, FL (United States). Dept. of Civil and Environmental Engineering
Experiments were performed to determine the possible extent of galvanic corrosion when CFRP and steel are in contact in chloride contaminated concrete. Three concrete environments (water-to-cement (w/c) ratio of 0.41) at relative humidities (RH) of {approx}60%, {approx}80% and {approx}95%, and 14 kg/m{sup 3} chloride were investigated. The CFRP composite potential reached between {minus}180 and {minus}590 mV (vsCSE) when it was in contact with steel at these environments. Results showed significant galvanic action in the 80% RH chloride contaminated concrete (nominal steel current densities as high as 0.3 {micro}A/cm{sup 2}).
- OSTI ID:
- 351779
- Report Number(s):
- CONF-980316--
- Country of Publication:
- United States
- Language:
- English
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