Consolidation characteristics of early age cemented paste backfill
Bibliographic record
Abstract
a Industrial NSERC – Polytechnique – UQAT Chair on environment and mine waste management b Canadian Research Chair on integrated management of sulphidic mine wastes by means of backfilling This paper presents a laboratory study undertaken to understand the effect of binder contents (0-control sample, 1, 3, 4.5 and 7 wt%) on one-dimensional (1-D) consolidation properties (e.g., coefficient of consolidation cv, compression index Cc and recompression index Cr) of cemented paste backfill (CPB) at curing ages of 0, 1, 3, and 7 days. Test results show that the behaviour of 1-D consolidation under time-dependent loading is greatly affected by the amount of binder used within CPB. Cc varies from 0.06 to 0.54 while Cr is between 0.0019 and 0.0081. cv decreases from 2.73x10-3 to 3.46x10-3 cm2/s over time due to the gradual formation of cement bonds during hydration. RÉSUMÉ Cet article présente une étude expérimentale entreprise pour comprendre l'effet de la proportion de liant (0-échantillon témoin, 1, 3, 4.5 et 7%) sur les propriétés de consolidation unidimensionnelle (coefficient de consolidation cv, indice de compression Cc et indice de ré-compression Cr) de remblai en pâte cimenté aux temps de curage de 0, 1, 3, et 7 jours.
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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 | 0.000 |
| 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) | 0.001 | 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".