Chloride-induced Corrosion of Reinforcing Steels Used in Concrete Structures at Various Temperatures
Bibliographic record
Abstract
Abstract Changes in temperature due to global warming could increase the risk of corrosion damage to critical reinforced concrete (RC) infrastructure and impose challenges to the corrosion protection of bridges exposed to extensive amounts of de-icing salt in the winter. The chloride threshold limit (CTL) of a steel reinforcing bar (rebar) indicates its corrosion resistance to chlorides. CTL is one of the governing parameters determining the time to corrosion initiation. This study presents an experimental investigation of the temperature dependency of CTL for six types of rebar, including four grades of stainless steel subjected to pitting corrosion characterized by the potentiodynamic polarization method. The temperature was an important influencing factor on the CTL of alloys. As expected, the corrosion resistance of the rebars (i.e., CTL) decreased with higher temperatures. Additionally, the temperature dependence of the CTL was found to vary significantly among the six alloys. This study suggests that the temperature variation in the atmosphere can affect the corrosion resistance of rebar materials used in concrete, hence, changing the service life of these structures. The effect of temperature on CTL of reinforcing steel materials should be further understood and considered when selecting these alloys for more extended service design of concrete structures.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| 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 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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 teacher head, 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".