Stresses induced by alkali–silica reactivity in prototypes of reinforced concrete columns incorporating various types of reactive aggregates
Bibliographic record
Abstract
Prototypes of columns were cast with different percentages of rebars and stirrups and various alkali–silica reactive aggregates. The deformations of concrete were measured along the three directions using surface metal studs and internal vibrating wire gauges. The deformations of steel were measured using fiber-optic gauges and short rods welded to rebars and stirrups. Along each direction, the deformations of concrete and steel were quite similar up to 0.08% longitudinal expansion, beyond which the rebars were generally showing less (longitudinal) expansion than concrete. The rebars reduced the longitudinal expansion; the higher the percentage of longitudinal steel, the higher this reduction. On the other hand, the expansion increased in the other two transverse directions to give comparable volumetric expansions for all specimens of the same mixture, with or without relatively spaced-out stirrups. The transverse expansion perpendicular to the casting plane was always higher than the transverse expansion parallel to this plane. The rebars were tensioned up to 280 MPa. The concrete was prestressed parallel to the rebars, up to 3.3 MPa. For their part, the stirrups were highly stressed in tension and flexure, and usually reached plastification.
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How this classification was reachedexpand
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 | 0.001 |
| 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) | 0.000 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".