Ideas. Refined.

We led the development of polymer-modified asphalt in Canada, so it's no wonder we're committed to continuously improving it. Our lab at the University of Calgary is a world leader in asphalt research.

 

Setting new industry standards

Our scientists prove asphalt can be refined and upgraded in the lab.


Research papers

Stay up-to-date with our innovations in polymer-modified asphalt and other technologies.

Network Formation and Properties of Asphalt Modified with Styrene-Butadiene-Styrene and Crosslinked by two Different Crosslinking Agents 

Research question: Can new, commercially available crosslinkers be used in place of sulphur to produce superior polymer-modified asphalt (PMA)?

Conclusion: Crosslinking the PMA network leads to higher maximum service temperature values and enhanced low service temperature performance. Optimal dosages of crosslinkers were determined and a method to evaluate alternative crosslinkers was established.

 

Author:

Martin Jasso

Co-Authors:

Brett Lambden, Ludo Zanzotto

Presented:

Canadian Technical Asphalt Association Proceedings (CTAA), November 2018
Regina, SK, Canada

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The Effect of High Stress on Asphalt Binders and Hot Mix Asphalt

Research question: Do new asphalt specifications match best performance?

Conclusion: Stress levels associated with the specification and with lab test temperatures that best reflect field performance are not necessarily the same. As a result, PMAs prepared from softer binders have to be carefully formulated to ensure rutting resistance in the field.

Author:

Gabriel Skronka

Co-Authors:

Martin Jasso, Otakar Vacin

Presented:

Canadian Technical Asphalt Association Proceedings (CTAA), November 2018

Read the Abstract

 


Evaluation of Increased Use of RAP with Soft Husky Asphalt Binder

Research question: In response to a challenge issued by Washington State, we worked to determine how to increase the use of recycled material while preserving asphalt durability.

Conclusion: Husky’s high-quality asphalt is ideally suited to increasing the use of RAP while improving the fatigue and low-temperature properties of the mix.

Author:

John D’Angelo

Co-Authors:

Raj Dongre, Brett Lambden

Presented:

Association of Asphalt Paving Technologists (AAPT) Technical Session, 2019

About AAPT

 


Evaluation of Newly Developed Performance Grading Systems for Emulsion Residues

Research question: How can asphalt-emulsion specifications better reflect performance in the field?

Conclusion: Industry provided feedback to researchers at Texas A&M and North Carolina State who were developing new asphalt specifications. These recommendations were accepted and a draft AASHTO specification was put out for review.

Author:

Andrew Hanz

Co-Authors:

R. Michael Anderson, Codrin Daranga, Brett Lambden, Mary Ryan

Presented:

Association of Asphalt Paving Technologists (AAPT) Technical Session, 2019

About AAPT