Hydration behavior, microstructural characteristics, and kinetic analysis of cemented tailings backfill under temperature effect
Bibliographic record
Abstract
The hydration behavior of cemented tailings backfill (CTB) is critical to understanding its mechanical performance and microstructural evolution. This study proposes a modified hydration kinetics model that accounts for the dilution, dissolution, and nucleation effects of tailings, with variable growth rates. The model was validated through isothermal calorimetry and closely matched experimental data. Results show that elevated curing temperatures accelerate hydration reactions, with both the maximum growth rate and critical nucleus length exhibiting S -shaped trends. The degree of hydration peaks at 40 ℃, beyond which further increases in temperature reduce hydration efficiency due to early surface densification and hindered ion transport. Kinetic parameters were found to exponentially shorten hydration stage durations, while cumulative heat release increases and then declines with temperature. These findings improve the understanding of temperature-dependent hydration mechanisms and provide theoretical support for optimizing CTB mix design and curing strategies in deep mining environments, where thermal conditions critically affect early strength development and backfilling efficiency.
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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 | 0.000 | 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) | 0.000 | 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".