Laboratory manufacture of high moisture southern pine strandboard bonded with three tannin adhesive types
Bibliographic record
Abstract
Three types of tannin-based adhesives (wattle, quebracho, and radiata pine) were examined as binders for strandboard panels at two binder solids (10% and 13%) application levels. The strand moisture content (MC) was 6 percent or higher with an objective of having an out-of-press panel MC of 6 percent or higher. Characteristics (viscosity, stability, and gel time) of the tannin solutions and final tannin adhesives with cross-linking compounds are described. The strandboard panels were tested for internal bond, bending properties, durability after an accelerated aging test, and thickness swell after exposure to water. The preliminary panels bonded with 10 percent binder solids and 5.5 to 6.5 percent MC strands showed some promising test results, with some exceptions meeting or exceeding Canadian standards for strandboards. The final series of panels had varied physical/mechanical test results, due in part to strand MCs that were as high as 8.6 percent. Further work is suggested on fine-tuning the cross-linking compounds and the press processing parameters for tannin adhesives for strandboard manufacture.
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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 | 0.001 | 0.000 |
| 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 | 0.000 |
| 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".