Enhancing cracking resistance of ultra-high-performance concrete slabs using steel fibres
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
This study investigates the effect of steel fibres on early-age shrinkage cracking behaviour of ultra-high-performance concrete (UHPC) slabs. For this, four large UHPC slabs, 2600 mm long and 80 mm deep, are fabricated. Two different UHPC mixtures with and without steel fibres (V f = 0% and 2%) are considered. Test results show that all UHPC slabs without steel fibres exhibit shrinkage cracks at a very early age (before 1 d), whereas no shrinkage cracks are found in the UHPC slabs with steel fibres. The two principal reasons for these observations are the higher shrinkage strain and lower tensile strength of UHPC without steel fibres compared with its counterpart with steel fibres incl. Restrained shrinkage strain is found to be much lower (approximately 75% or more) than the free shrinkage strain, and exhibits a completely different behaviour to that of strain under free conditions.
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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 | 0.004 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 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 it