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Record W640205348

Warm Mix Asphalt - A Greener Alternative to Hot Mix Asphalt

2012· article· en· W640205348 on OpenAlexaboutno aff
L Politano

Bibliographic record

Venue2012 CONFERENCE AND EXHIBITION OF THE TRANSPORTATION ASSOCIATION OF CANADA - TRANSPORTATION: INNOVATIONS AND OPPORTUNITIES · 2012
Typearticle
Languageen
FieldEngineering
TopicAsphalt Pavement Performance Evaluation
Canadian institutionsnot available
Fundersnot available
KeywordsAsphaltAsphalt pavementEnvironmental scienceEngineeringWaste managementForensic engineeringMaterials scienceComposite material
DOInot available

Abstract

fetched live from OpenAlex

Warm Mix Asphalt is defined as a group of technologies that allow for a reduction in the temperatures at which asphalt mixes are produced and placed relative to traditional Hot Mix Asphalt (HMA). WMA is produced and placed at temperatures 20 to 50 deg C less than conventional HMA. The production and paving of asphalt at these reduced temperatures generates fewer emissions and requires less energy while maintaining or enhancing pavement performance. MTO began preliminary research on the application of WMA to Ontario roads in 2006, followed by initial WMA trial contracts in 2008. To evaluate the environmental benefits of WMA, MTO required additional tests and measurements be performed on several of the 2010 contracts. These included emissions measurements at both the asphalt manufacturing plant and paving site, temperature measurements of the WMA during production and paving, and additional tests to assess WMA pavement performance . In these trial contracts, WMA paving occurred at temperatures 10 to 30 deg C lower than conventional HMA without any adverse effects on asphalt properties. The WMA trials were successful and supported increased WMA usage. As a result, MTO decided to target 10 percent WMA use on contracts completed in 2011. In addition, MTO decided to include larger tonnages of WMA than in previous years, and to use WMA in both the binder course and surface course layers. This project was nominated for the TAC 2011 Environmental Achievement Award. For the covering abstract of this conference see ITRD record number 201211RT334E.

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.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.582
Threshold uncertainty score0.930

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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.

Opus teacher head0.039
GPT teacher head0.237
Teacher spread0.198 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

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".

Quick stats

Citations5
Published2012
Admission routes1
Has abstractyes

Explore more

Same venue2012 CONFERENCE AND EXHIBITION OF THE TRANSPORTATION ASSOCIATION OF CANADA - TRANSPORTATION: INNOVATIONS AND OPPORTUNITIESSame topicAsphalt Pavement Performance EvaluationFrench-language works237,207