The effect of the alkaline solution content on the mechanical properties of MK-based PVA fiber-reinforced geopolymers
Bibliographic record
Abstract
this paper studied the effect of the activation solution content on the mechanical properties of PvA fiber-reinforced geopolymers based on the activation of metakaolin.Different fiber content (0%, 1% and 2% vol.) of PvA fibers was used to reinforce matrices with different composition (sio 2 /Al 2 o 3 molar ratios, i.e. 3.0, 3.4 and 3.8).the amount of activation solution was adjusted to maintain same workability for all fresh mixes and account for the fiber addition.the properties assessed were compressive and flexural strength; capillary sorption tests were used to estimate the durability of the composites.results show that adjustments in the content of the activation solution slightly reduce the mechanical strength of geopolymers.nonetheless, as the amount of activation solution increases in the mixes, so does the toughness of the PvA-reinforced composites, which indicates a good correlation between the amount of soluble silica in the fresh geopolymers and mechanical properties in bending.
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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".