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Wonderful ways with rubber
| 题名： | Wonderful ways with rubber |
| 正文语种： | eng |
| 作者： | Kristina Smith |
| 摘要： | Ttalian bitumen plant specialist Menestrina has invented a new process which turns crumb rubber from waste tyres into a binder that can be used to replace some of the bitumen in an asphalt mix. The Oxyboost process is based on air blowing technology which passes a stream of air through bitumen causing a chemical reaction which is part oxidisation and part dehydrogenation. Menestrina has been supplying air blowing plants for roofing industry bitumen for many decades and, in the last 20 years, for the road industry to create multigrade bitumen. Oxyboost, which has a patent pending, adds temperature and pressure into the process in a closed loop reactor. There are many possible applications for the technology, according to Menestrina CEO Massimo Menestrina. Breaking down waste tyre rubber is one the first applications that the company is investigating using Oxyboost, working in partnership with bitumen laboratory MOPI. "The Oxyboost process breaks the bonds of the molecules that form the rubber in the same way as when pyrolysis happens, but at a much lower temperature," said Menestrina. Initial trials have worked at around 300℃ but it may be possible to lower that to 250℃ for industrial production, said Menestrina. |
| 出版年： | 2023 |
| 期刊名称： | World highways |
| 卷： | 32 |
| 期： | MAY/Jun. |
| 页码： | 54-55 |
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