Performance grading of the Lamont, Alberta C-SHRP pavement trial binders
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
This paper documents and discusses an investigation into the improved performance grading of asphalt binders that were used in the Canadian Strategic Highway Research Program (C-SHRP) pavement trial in Lamont, Alberta. Binders were assessed for their tendency to reversibly age at low-temperatures. While the correlation between cracking severity and regular AASHTO M320 and MP1a grades was weak (r 2=0.73 and 0.49, respectively), the predictive ability of the BBR method increased significantly when binders were tested after 1, 3 and 8 days of conditioning (r 2=0.94–0.97). Brittle and ductile fracture energies were measured in single-edge-notched bending (SENB) and double-edge-notched tension (DENT), respectively. In the brittle state, the SENB test revealed little difference between the binders. However, in the ductile state, the DENT test revealed significant differences between materials, with binders that showed the least amount of cracking having the highest works of fracture at 0°C.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.000 |
| 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) | 0.000 | 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 it