Failure Analysis of Asbestos Cement Pipe Using Recent Main Break Data
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Asbestos cement (AC) pipe was used as pipe material starting from 1930s. It was widely used during 1950s–1960s, and it phased out in the US in 1980s due to health concerns and the availability of PVC pipe. It was estimated that 600,000 mi AC pipe were installed in the United States and Canada. Several studies show that AC pipes are experiencing accelerated failure in recent years. To prioritize the AC main replacements, it is important to understand the performance of AC pipe in the water system. This paper analyzes the failures of AC pipe using the most recent 12-year main break data. AC pipes in coastal area and inland area were analyzed separately to understand their break rates. The results of this analysis could help utilities better understand the performance of AC pipe and prioritize AC pipe replacement.
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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 | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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 it