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Recycled asphalt as good as new one

Rafał Ostrowski 28 February 2019

Rafał Ostrowski


+48 22 356 25 11

Rafał Ostrowski has over 17 years’ experience as a journalist. Before joining ‘Eurobuild CEE’ five years ago, he wrote for Wydawnictwo Murator and Shopping Centre Magazine, as well as for retailnet.pl. He has also written for many newspapers and magazines as a freelancer and prepared photo-reportages. Rafał graduated from the University of Warsaw in philosophy. He also completed postgraduate studies in text editing. For ‘Eurobuild CEE’ he covers most real estate sectors, including logistics, construction, office, residential and retail. He is also in charge of the film direction for Eurobuild TV.

EUROPE Tens of per cent of the materials used to produce asphalt paving can be replaced with recycled asphalt collected from old roads without compromising on the new road’s quality, safety or durability.

This is the main takeaway from a three-year research project conducted by YIT, the Danish Technological Institute and the Danish Road Directorate as part of the Environmental Technology Development and Demonstration Programme (MUDP) funded by the Danish Ministry of Environment and Food. In the study, comprehensive data was produced on the characteristics of wearing course of asphalt where 30 per cent of the material was replaced by recycled asphalt from old roads. Recycled asphalt currently represents only about 10 per cent of the asphalt wearing course’s raw material used in Denmark.

YIT offered the research project access to its comprehensive laboratory testing programme and was also responsible for the milling and processing of recycled asphalt as well as the development of recycled asphalt recipes. The company also produced a two-kilometre asphalt research area on the motorway between Herning and Holstebro.

The project included a comprehensive life-cycle analysis of recycled asphalt to assess its environmental benefits. According to the results of the study, the increased use of recycling can achieve a significant reduction (app. 14–22 pct) in the carbon dioxide emissions of asphalt production. The calculations produced in Denmark indicate that the asphalt industry could reduce CO2 emissions by as much as 24,000 tonnes annually by increasing the use of recycled asphalt in the wearing course of roads.

“Thanks to this study, we finally have empirical data about the quality and environmental benefits of recycled asphalt. We have waited for the results for a long time. Now that we have them, it is hard to justify not using recycled asphalt,” says Lotte Josephsen, head of YIT’s asphalt laboratory in Denmark.

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