Mitigating shrinkage cracking in stucco through the replacement of fine aggregate with expanded perlite
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 paper describes a quantitative study on shrinkage cracking in stucco. Two series of mixes were examined with the binder to fine aggregate volumetric ratio of 0.20 and 0.25, respectively. In each series, specially engineered expanded perlite was incorporated as a replacement to the fine aggregate at up to 75% by volume. An environmental chamber was setup to create extreme conditions for moisture loss through sustained high temperature and low humidity. Commercially recommended stucco mixes were cast into plates, which were evaluated for linear and volumetric shrinkage. At the same time, crack growth at the end of a 48 h exposure period was evaluated for total length and area. It was found that while adding expanded perlite did not notably reduce the total linear or volumetric shrinkage, it significantly lessened crack development. This was attributed to the increase in tensile strain capacity imparted by the expanded perlite, as evidenced from flexural testing.
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) | 0.000 | 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