Effects of curing regimes on the mechanical properties and durability of polymer-modified mortars – an experimental investigation
Bibliographic record
Abstract
The present research investigates the polymer/cement (P/C) ratios (0, 5, 10, 15, and 20%) on mechanical and durability properties of modified mortar exposed to different curing conditions. These properties include compressive and flexural strengths, flow spread test, water absorption, density, coefficient of water absorption, sorptivity, and salt/sulfate resistance tests. The results show that combining seven days of water submergence and 21 days of ambient temperature curing (7W21D) along with 15% polymer content is more helpful to improve the mortar properties compared to other mix proportions and curing conditions. Interestingly, the same combination resulted in a better performance in terms of water absorption, the coefficient of water absorption, sorptivity, toughness and salt/sulfate resistance as compared to polymer-modified mortars (PMMs) containing 0, 5, 10, and 20% polymer.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 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 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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".