Improvement of asphalt road pavement with nanoengineered particles

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Warm Mix Asphalt (WMA) is gaining attention in the asphalt industry as an environmentally friendly and sustainable technology.

WMA decreases Energy consumption At the same time while minimizing steam Greenhouse gas emissions During production asphalt Mixture compared to conventional asphalt. However, due to high water sensitivity and asphalt aging, WMA is less durable on the road.

To address both WMA technology issues, a team from Swansea University’s Institute for Energy Safety (ESRI) and Braunschweig Institute of Technology’s Braunschweig Pavement Engineering Center (ISBS) has discovered the potential for fumed. Silica nanoparticles (FSN) Used as an anti-aging binder, it not only lowers the temperature, but also significantly overcomes the limitations of being sensitive to moisture.

Principal Investigator Gostaspcheragian said: Large surface area It is an ideal candidate as a cost-effective and non-toxic material that can have a meaningful impact on asphalt shields with WMA technology. In addition, our discoveries on the concept of molecular interactions between nanoparticles and asphalt binders can open new avenues for the application of nanotechnology in asphalt engineering. “

“One day, these high surface area NPs will be used in asphalt, potentially building longer-lasting roads by minimizing asphalt-related emissions (VOCs and COs).2) In real world situations. “Sajadokiani says.

Professor Andrew Barron, founder and director of ESRI and chairman of Swansea University’s Sêr Cymru, said: “Energy and resource savings are a key ESRI goal and essential to the industry as they move to NetZero.”

Articles can be read at Science report..

Explain the causes of deterioration of concrete and asphalt

For more information:
Goshtasp Cheraghian et al, Rheological, physicochemical, and ultrastructural properties of asphalt binders modified with fumed silica nanoparticles, Science report (2021). DOI: 10.1038 / s41598-021-90620-w

Provided by
Swansea University

Quote: Https: // Obtained from June 22, 2021 to improve asphalt road pavement with nanoengineering particles (2021) June 22, 2014)

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Improvement of asphalt road pavement with nanoengineered particles

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