Volume stability of hydrated C3S systems in various salt solutions
Bibliographic record
Abstract
The volume stability of well-hydrated C3S samples immersed in various salt solutions was investigated. Test variables included type of solution (sodium chloride, calcium chloride, magnesium chloride and magnesium sulfate) and salt concentration (from 0 to 180 g/I); All samples were prepared at a water/solid ratio of 0.5 and hydrated for several months in a lime-saturated solution. At the end of the curing period, one-mm thick samples were cut and immersed in salt solutions. The kinetics of degradation was assessed by thermal and X-ray diffraction analysis after 10, 20, 40 and 90 days of immersion. The volumetric stability was also followed by length change measurements. All samples were found to expand during immersion. In some cases, expansion was associated to the formation of new products. However, In most Instances, length changes appeared to be Induced by the progressive dissolution of the hydrated phases Initially present in the material. These results tend to support the hypothesis that dissolution mechanisms can initiate expansion.
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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) | 0.001 | 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 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".