原文传递
Optimising RAP screening
| 题名： | Optimising RAP screening |
| 正文语种： | eng |
| 作者： | Lars Braeunling |
| 摘要： | Millions of tonnes of recycled asphalt pavement (RAP) is used in asphalt mixtures each year, and the popularity of the product is only increasing. It makes sense. Virgin aggregate is not cheap and there is a ready supply of RAP waiting to be used, while sending a useful material to landfill is wasteful and brings additional costs. After being milled from the road, taking advantage of RAP requires special processing before it can be incorporated into asphalt mix. An important step in RAP utilisation is screening to the correct specification. However, the nature of the material can present challenges such as inefficiency, blinding and stuck-together material. High-vibration screen media can combat those issues by improving stratification, solving screening problems and reducing downtime. There are key benefits of high-vibration wire screens for screening RAP. Like most aggregates processes, RAP must be sent through a crusher before it can be screened. Crushing is not cheap, so it pays to optimise the screening process to ensure all right-size pieces make it through the screen rather than being returned to the crusher. |
| 出版年： | 2022 |
| 期刊名称： | World highways |
| 卷： | 31 |
| 期： | Sep. |
| 页码： | 33-33 |
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