热再生沥青混合料路用性能评价  

Evaluation of the Road Performance of Hot Recycled Asphalt Mixtures Using the Grey Target Decision Model

作　　者：蔡燕霞 崔雨豪 赵云刚[4] 杨杰 陈少鹏 CAI Yanxia;CUI Yuhao;ZHAO Yungang;YANG Jie;CHEN Shaopeng(School of Civil Engineering,Hebei University of Engineering,Handan 056038,China;Zhonglu High Tech(Beijing)Highway Technology Co.,Ltd.,Beijing 100088,China;Research and Development Center for the Application of New Materials Technology in Highway Construction and Maintenance Transportation Industry,Beijing 100088,China;Highway Construction Management Center of Handan Transportation Bureau,Handan 056000,China)

机构地区：[1]河北工程大学土木工程学院,邯郸056038 [2]中路高科(北京)公路技术有限公司,北京100088 [3]公路建设与养护新材料技术应用交通运输行业研发中心,北京100088 [4]邯郸市交通运输局高速公路建设管理中心,邯郸056000

出　　处：《粉煤灰综合利用》2025年第2期131-137,143,共8页Fly Ash Comprehensive Utilization

摘　　要：为充分利用沥青路面回收料,通过高温车辙、小梁弯曲、浸水马歇尔和冻融劈裂等试验方法,分析RAP掺量对厂拌热再生沥青混合料路用性能的影响;通过灰靶决策模型确定RAP掺量的最优配比方案。结果表明:随着RAP掺量增大,厂拌热再生沥青混合料的高温稳定性逐渐提高,水稳定性和低温抗裂性逐渐下降;并且在30%~40%的RAP掺量范围内高温稳定性、低温抗裂性和水稳定性的评价指标变化速度加快;再生剂改善了厂拌热再生沥青混合料低温抗裂和水稳定性能;基于灰靶决策模型,最终确定添加再生剂且RAP掺量为40%的沥青混合料为最佳方案。To fully utilize recycled asphalt pavement materials,the influence of RAP content on the road performance of factory mixed hot recycled asphalt mixture was analyzed through high-temperature rutting,small beam bending,immersion Marshall test,and freeze-thaw splitting test methods;Determine the optimal ratio scheme for RAP dosage through the grey target decision model.The results showed that as the RAP content increased,the high-temperature stability of the factory mixed hot recycled asphalt mixture gradually improved,while the water stability and low-temperature crack resistance gradually decreased;And the evaluation indicators for high temperature stability,low temperature crack resistance,and water stability change faster within the RAP content range of 30%to 40%;The rejuvenator improves the low-temperature crack resistance and water stability of the factory mixed hot recycled asphalt mixture;Based on the grey target decision model,the asphalt mixture with 40%RAP content and the addition of rejuvenator was ultimately determined as the optimal solution.

关 键 词：路面工程 厂拌热再生 灰靶决策模型 RAP掺量 再生剂 路用性能 

分 类 号：U416.2[交通运输工程—道路与铁道工程]