Effects of refined waste and bio-based oil modifiers on rheological properties of asphalt binders
Effects of refined waste and bio-based oil modifiers on rheological properties of asphalt binders
复制标题
精炼废料和生物基油改性剂对沥青胶结料流变性能的影响
DOI：
10.1016/j.conbuildmat.2017.05.101
复制
发表时间：
2017-09-01
影响因子：
7.4
通讯作者：
Cheng Ling
中科院分区：
文献类型：
--
作者：
Zhang Lei;Bahia, Hussain;Cheng Ling
为了更好地回收利用废油，它已被引入到沥青结合料作为一种改性剂。在这项研究中，石油基，再精炼，和生物基油改性剂对沥青粘合剂在低，中，高的服务温度范围内的流变性能的影响进行了评估。结果表明，加入油品改性剂后，尤其是再精制油品改性剂，可以降低沥青低温下的劲度，从而显著改善沥青的低温性能。这种影响被认为是石油类型依赖。采用线性振幅扫描试验评估油改性粘结剂的抗疲劳性和损伤容限，特别是老化的影响。采用多应力蠕变和恢复试验来评价油改性剂对抗车辙性的影响以及在粘合剂中使用此类油改性剂的可能的非线性含义。根据所观察到的变化趋势，建立了油品改性剂对沥青流变性能影响的预测模型。根据油品对粘结剂性能等级的影响，提出了一种实用有效的油品改性指数（OMI）。(C)2017爱思唯尔有限公司版权所有
To better recycle the waste oil, it has been introduced into asphalt binder as a type of modifier. In this study, the effects of petroleum-based, re-refined, and bio-based oil modifiers on the rheological properties of asphalt binders at low, intermediate, and high service temperature ranges were evaluated. It is found that low temperature performance of asphalt can be improved significantly after adding oil modifiers, especially for re-refined oil modifier, through reducing the stiffness of binders at low temperatures. This effect was found to be oil-type dependent. The linear amplitude sweep test was deployed to evaluate fatigue resistance and damage tolerance of oil modified binders, especially with regards to the effect of aging. The Multiple Stress Creep and Recovery test was employed to evaluate the oil modifiers effect on rutting resistance as well as the possible nonlinearity implication of use of such oil modifiers in binders. Based on the observed trends, a prediction model for the effects of oil modifiers on rheological properties of asphalt was developed. A practical and efficient oil modification index (OMI) was proposed for classification of oil in terms of its effect on the binder performance grade. (C) 2017 Elsevier Ltd. All rights reserved.