Microscopic assessment of ASR-affected columns after 20 years in service
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
Deterioration signs were observed on the concrete surface of the exterior columns of the SITE building located at the University of Ottawa, Ottawa (Ontario, Canada) which demonstrated the potential presence of a concrete damage mechanism, suspected to be alkali-silica reaction (ASR). To investigate the root cause of this deterioration, a visual inspection was conducted to select concrete members for coring. Damage development in the extracted cores was then evaluated through various microscopic techniques to identify the cause and extent of deterioration. First, the petrographic examination was carried out with the aim of detecting the cause of damage in the extracted core specimens through the analysis of damage features; confirming the presence of ASR in the selected elements Afterwards, the Damage Rating Index (DRI), a semi-quantitative microscopic procedure, was used to evaluate the extent of the damage. Data collected during the visual inspection and petrographic examination will be presented and analyzed. Moreover, based upon the analysis of DRI results, the induced expansion levels in affected columns will be discussed, along with potential implications on their structural performance.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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) | 0.003 | 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