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The use of diffuse reflectance infrared spectroscopy to monitor the oxidation of UV irradiated and naturally aged bitumen and asphalt

Bowden, H., Almond, M., Hayes, W. and Mcrobbie, S. (2019) The use of diffuse reflectance infrared spectroscopy to monitor the oxidation of UV irradiated and naturally aged bitumen and asphalt. Road Materials and Pavement Design. ISSN 1468-0629

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To link to this item DOI: 10.1080/14680629.2019.1684982

Abstract/Summary

A total of £4.2 billion was spent repairing roads in England between the years 2013-14. [ ] At present road surface quality is monitored visually and then the road is repaired where damage arises. By the time the road surface is visibly damaged it is beyond repair and thus requires resurfacing. This road maintenance regime is a very costly and time consuming. As a consequence the ability to monitor and predict road surface degradation based on non-invasive measurements can provide a significant advance in highway maintenance. The oxidation of the bitumen in the road surface is known to promote failure of the road surface as it reduces the cohesion between the bitumen and the aggregate. This paper reports the use of non-contact, diffuse reflectance infrared Fourier transfer (DRIFT) spectroscopy to monitor the oxidation process in bitumen and asphalt. The results described in this paper outline the comparison between natural ageing and enhanced, artificially-promoted ageing of bitumen and asphalt samples using UV light. The IR spectroscopic results show the evolution of oxidation product functional groups and allow the ageing of the bitumen and asphalt samples to be monitored.

Item Type:Article
Refereed:Yes
Divisions:Interdisciplinary centres and themes > Chemical Analysis Facility (CAF)
Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
ID Code:86924
Publisher:Taylor & Francis

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