Performance of the heavy fraction of pyrolysis oil derived from waste printed circuit boards in modifying asphalt
Performance of the heavy fraction of pyrolysis oil derived from waste printed circuit boards in modifying asphalt
复制标题
DOI：
10.1016/j.jenvman.2013.03.039
复制
发表时间：
2013-09-15
影响因子：
8.7
通讯作者：
Wu, Jiaqi
中科院分区：
文献类型：
--
作者：
Yang, Fan;Sun, Shuiyu;Wu, Jiaqi
这项研究的重点是开发高效和负担得起的沥青改性剂。废印刷电路板热解产生热解油。通过蒸馏从热解油中分离出高沸点馏分，并将其称为热解油重馏分（HFPO）。将HFPO作为沥青改性剂进行测试。测试了三种沥青改性剂：HFPO;丁苯橡胶（SBR）;和HFPO + SBR（1：1）。对三种改性沥青的物理性能和路用性能进行了测试和评价。结果表明，当改性剂用量小于10%时，HFPO改性沥青的软化点最高。HFPO改性沥青混合料的动稳定度（DS）为10,161次/mm，抗水性为87.2%。DS远大于HFPO + SBR和SBR改性沥青混合料。这些结果表明，使用HFPO作为沥青改性剂不仅对道路工程，而且对资源回收利用具有显着的效益。(C)2013爱思唯尔有限公司保留所有权利。
The focus of this research was the development of efficient and affordable asphalt modifiers. Pyrolysis oil was produced as a byproduct from the pyrolysis of waste printed circuit boards (WPCBs). The high boiling point fraction was separated from the pyrolysis oil through distillation and is referred to as the heavy fraction of pyrolysis oil (HFPO). The HFPO was tested as an asphalt modifier. Three asphalt modifiers were tested: HFPO; styrene butadiene rubber (SBR); and HFPO + SBR (1:1). The physical properties and road performance of the three modified asphalts were measured and evaluated. The results have shown that when the amount of modifier was less than 10%, the HFPO modified asphalt had the highest softening point of the three. The dynamic stability (DS) and water resistance of the asphalt mixture with the HFPO modified asphalt was 10,161 cycles/mm and 87.2%, respectively. The DS was much larger than for the HFPO + SBR and SBR modified asphalt mixtures. These results indicate that using HFPO as an asphalt modifier has significant benefits not only for road engineering but also for resource recycling. (C) 2013 Elsevier Ltd. All rights reserved.