| Title | Field evaluation of a new aluminum alloy as a sacrificial anode for steel embedded in concrete |
|---|---|
| Record ID | 6365 |
| Personal Name Creator |
Funahashi, M.; Young, W.T. |
| Corporate Creator | United States. Federal Highway Administration |
| Publisher | Turner-Fairbank Highway Research Center |
| Publication Date | 19980400 |
| Language | English |
| Abstract | This is the final report for a study to evaluate the use of sacrificial cathodic protection for reinforced and prestressed concrete bridge members. Cathodic protection (CP) using impressed current is an accepted and common method used to provide corrosion protection to steel in concrete. Sacrificial cathodic protection, however, is relatively easy to apply, does not require that the anode be electrically isolated from the steel, and does not require an external power supply. In the past, attempts to apply sacrificial anode CP to bridge structures have met with limited success because conventional sacrificial anode alloys operate at a low fixed potential and the conductivity of concrete often does not permit satisfactory current output. The Florida Department of Transportation (DOT) has applied arc-sprayed zinc to several bridges in the marine environment. This study examined the performance of existing sacrificial alloys in different environments for sacrificial CP, and developed new sacrificial alloys for protecting steel in concrete. The study consisted of both laboratory and field tasks. (65 p.) |
| Rosap ID | dot:13628 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/13628 |
| TRT Terms | Bridges; Concrete; Steel; Materials; Cathodic protection; Aluminum alloys; Zinc alloys; Support piles; Corrosion protection |
| General Subjects | Florida; Sacrificial cathodic protection |
| Classification | NTL - HIGHWAY/ROAD TRANSPORTATION - Materials |
| Geographical Coverage |
Florida |
| TRIS Online Accession No |
748281 |
| Report Number | FHWA-RD-98-058 |
| Resource type | Research Paper |
| URL | https://ntlrepository.blob.core.windows.net/lib/6000/6300/6365/058.pdf |
| Format | |
| Database | NTL Digital Repository |