Repeated Loading and Unloading Tests of Asphalt Binders and Mixes
Bibliographic record
Abstract
Repeated creep and repeated load permanent deformation tests were performed on asphalt binders and mixes. The repeated creep test method was proposed as a new method for the evaluation of the ability of modified asphalt binders to maintain their elastic response; and the suitability of this test method for evaluation of asphalt pavements was studied. Rheological modeling with linear and nonlinear viscoelastic models was applied to describe the material behavior. The second test method, known as the repeated load permanent deformation test, was proposed by the United States National Cooperative Highway Research Program (NCHRP) as one of the Simple Performance Test (SPT) candidates for asphalt mix testing. The effects of loading, material (conventional base asphalt and polymer modified asphalt) and the number of cycles were investigated. The capability of the Universal Testing Machine (UTM) to produce haversine pulse loading and the resulting responses were investigated. The ability of viscoelastic theory to describe the asphalt mix behavior under this testing was studied.
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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 | 0.000 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 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) | 0.002 | 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 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".