Contraction and expansion of partially saturated hot mix asphalt samples exposed to freeze–thaw cycles
Why this work is in the frame
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Bibliographic record
Abstract
This paper analyses the physical impacts over hot mix asphalt subjected to freeze–thaw (FT) cycles (−18°C to +10°C) under dry and partially saturated conditions, with water or brine at different salt concentrations. Specifically, axial strain and temperatures at surface and in the heart of samples are measured during FT cycles. These measurements allow the quantification of the: (i) linear coefficient of thermal expansion (LCTE), (ii) dilation generated by formation of ice, (iii) contraction by melting of ice and (iv) freezing points variation with the degree of saturation and content of salt in brine. Under FT cycles, elongation, dilation and contraction generated by formation and melting of ice are much more significant for sample partially saturated with water (PSW). In addition, between +10°C and +23°C, LCTE value of samples PSW or brine is higher than that of sample in the dry state.
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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 | 0.001 | 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 | 0.000 | 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 it