Influence of the Mineral Nature and the Temperature of the Aggregate in the Water Resistance of Foam Bitumen Stabilized Mixes
Bibliographic record
Abstract
In-place foamed bitumen stabilization is experiencing a global growth worldwide. This pavement rehabilitation process was introduced in Canada in the early nineties. It is currently estimated that between two and three million square metres of pavement are rehabilitated using this method every year throughout Canada. Foamed stabilized mixtures have properties that differ significantly from those of standard hot bituminous mixtures. Contrary to hot bituminous mixes, the coating of the aggregate is selective and the voids in the mixture are high. Consequently, properties of foam-stabilized mixtures are closely associated with the aggregate skeleton of the mixture. In general, foam mixes are not as thermally sensitive as hot mix and their resistance to rutting and thermal cracking is excellent. However, the cohesion of foam mixes is significantly lower than hot mix which reduces their resistance to water damage. This paper focuses on the water resistance of in-place foamed bitumen stabilized mixes that have between 2.5 and 3.0 % added binder. The concepts associated with water resistance in relation to the temperature of the aggregate during mixing and the mineral nature/gradation of the aggregate are outlined. And finally, the paper provides results of testing of mixes produced using various water resistance enhancers.
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How this classification was reachedexpand
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 | 0.001 | 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 | 0.001 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".