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Big names combine for long-life binder study
| 题名： | Big names combine for long-life binder study |
| 正文语种： | eng |
| 摘要： | Highways England, Total and Tarmac have joined forces to carry out a long-term study into a new blend of materials described as 'an anti-ageing cream for roads', which could cut repairs and environmental impacts. Working together, the teams resurfaced three different stretches of a busy section of the A43 near Silverstone, in Northamptonshire. The first section has a standard bitumen, the second was laid with Total Styrelf extreme 100 and the third with Total Styrelf Long Life. The new bitumen, Styrelf Long Life, is designed to be more resistant to the elements by oxidising more slowly. This slower process means that the road surface stays flexible for longer, preventing cracks from forming. The trial could run for up to 15 years and over that time Total UK's experts will take samples from each section of the carriageway at regular intervals to measure the ageing performance and key characteristics of the bitumen, helping them to understand the degradation caused by oxidation and UV exposure. Roads on the strategic network are expected to be resurfaced every 10-12 years because water, sun and air, combined with the weight of heavy traffic, cause the surface to deteriorate and crack. Total UK estimates that getting the asphalt required to resurface a mile of single lane carriageway - not including transport to site -can produce up to 26.5 tonnes of CO_2. The energy company suggests that if just two resurfacing interventions could be avoided by increasing the durability of the roads, the reduction in asphalt production alone could save the equivalent of the CO_2 produced by an average car if it was driven for more than 270,000 miles - more than 10 times around the Earth. |
| 出版年： | 2021 |
| 期刊名称： | Highways |
| 卷： | 90 |
| 期： | 4 |
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