Bibliographic record
Abstract
Impressed Current Cathodic Protection (ICCP) system has been installed in bridges to protect bridges from corrosion since 1970s. When ICCP systems are properly monitored and maintained, corrosion is minimized or virtually stopped. However, many installed ICCP systems are not working to their full potentials due to lack of qualified personnel and maintenance budgets. Galvanic anodes have been included in patch repairs of steel reinforced concrete structural elements suffering from corrosion since the mid-nineties. Drilled Galvanic anodes are used in many concrete structures where corrosion potentials are high and/or chloride level is high but corrosion does not progress to the extent causing concrete damages. These two types of anodes has been included in the recently published ACI RAP Bulletin 8 ‘Installation of Embedded Galvanic Anodes’ (1). Recognizing the inadequate monitoring and maintenance of impressed current cathodic protection that will make it in-effective, with the successful experience of galvanic anodes in patch repairs, a new galvanic cathodic protection system was developed in 2003, a trial using this distributed galvanic anodes was conducted in bridge deck overlay to address the global corrosion issues in the structure in Canada in 2003. The trial had been monitored for 12 years and was considered a success. The newly developed distributed galvanic anode system has been used in various bridge applications, including abutment overbuild, concrete deck overlay, concrete jackets for columns, piers and marine piles around the world since its inception. This paper first introduces some corrosion basics and cathodic protection, then discusses the levels of galvanic corrosion protection and its applications.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.010 | 0.004 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".