Adapting European Pavement Tests to Prove Coating Performance on Steel Culverts
Bibliographic record
Abstract
Buried steel structures must resist many environmental elements and maintain structural integrity throughout their design service life (DSL). For Canadian Bridges this exceeds 75 years. An innovative polymer coating on steel is expected to extend life to meet these requirements however it first must be tested in accelerated conditions that are representative of aggressive conditions that a highway culvert will face over its lifetime. Unfortunately test methods and equipment that replicate the long term performance of culvert inverts in abrasive conditions are not readily available. Based on European test methods for airport runways the Ministeres des Transport du Quebec (MTQ) has developed METHODE D ESSAI LC21-102 to test the abrasion resistance of pavements. Equipment for this test is available and used regularly at the MTQ laboratory in Quebec. Going beyond pavements, MTQ has effectively adapted this test procedure and established a method to review the effectiveness of various metallic and polymeric coatings on steel. For the covering abstract of this conference see ITRD record number 201211RT334E.
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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 | 0.003 | 0.004 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.002 | 0.002 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
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".