Low-temperature Fracture in Reactive-ethylene-terpolymer-modified Asphalt Binders
Why this work is in the frame
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Bibliographic record
Abstract
This paper reports on the low-temperature fracture and yield properties of a number of Strategic Highway Research Program asphalt binders that were modified with 5% by weight of a reactive terpolymer of ethylene, butyl acrylate and glycidyl methacrylate. Selected binders were also tested with the addition of small amounts of phosphoric acid. Fracture toughness and energy were determined at temperatures close to where the stiffness reached 300 MPa while the 2% offset yield stress was determined at somewhat lower strain rates in compression. Significant differences were found in the fracture properties ( K Ic and G Ic ) of these binders depending on the compatibility of the polymer with the base asphalt. It is suggested that the fracture energy and yield stress at low temperatures may be able to more accurately grade binders for their performance with respect to thermal stress cracking in the pavement compared to the currently used SHRP specification properties.
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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 | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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