【摘要】 为获得最佳的热再生工艺组合以保证热再生混合料(Recycled Asphalt Pavement)具有最优的综合性能,对不同再生工艺组合(预热温度、再生剂的添加方式以及新旧料拌和时间)下的马歇尔指标和路用性能指标进行了室内试验;应用灰色关联理论计算不同再生工艺组合的灰色关联度,对比评价基于综合性能的热再生工艺组合的优劣。研究结果表明:再生工艺对再生沥青混合料的马歇尔指标和路用性能指标均有显著影响,充分预热RAP、再生剂添加到RAP中、延长拌合时间有助于提高热再生混合料的综合性能;运用基于综合性能的灰色关联分析,有助于克服单指标设计不能兼顾其他性能的缺陷,不失为一种简单而有效的系统评价方法。更多还原

【Abstract】 In order to obtain the best recycled technology to ensure that the recycled mixture can get the best comprehensive performances,the Marshall indexes and road performances produced with different hot-recycled technologies(preheating temperature of RAP,addition method of renewable agent and mixing time) are tested;The gray relation grade of different hot-recycle technologies is analyzed with Gray Relation Theory and advantages and disadvantages of which is compared based on the comprehensive performances of recycle mixture.The results show that the hot-recycle technology has a significant influence on the Marshall indexes and road performances and sufficient pre-heating RAP and renewable agent addicted in RAP and increasing the mixing time will enhance comprehensive performances of recycled mixture;The grey relation analysis is one kind simple and effective material assessment method which can overcome the disadvantage of the single target design being not able to pay attention to other performances.更多还原