直投高模量剂与热集料干拌熔融分散性能研究  

Study on Melting and Dispersing Properties of High Modulus Agent and Hot Aggregate Dry Mix

作　　者：刘新海 李善强 吴传海 孟繁诚 许新权 LIU Xinhai;LI Shanqiang;WU Chuanhai;MENG Fancheng;XU Xinquan(Guangdong Hualu Transport Technology Co.Ltd.,Guangzhou 510420,China;Guangdong Jiaoke Technology R&D Co.Ltd.,Guangzhou 510550,China)

机构地区：[1]广东华路交通科技有限公司,广州510420 [2]广东交科技术研发有限公司,广州510550

出　　处：《武汉理工大学学报（交通科学与工程版）》2023年第5期922-927,共6页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：广东省重点领域研发计划(2022B0101070001);广东省基础与应用基础研究基金(2022A1515011326);广东省省级科技计划项目(2021B111610002);广东省交通集团有限公司科技项目(MP-2019-001)

摘　　要：文中基于正交试验原理,提出了一套评价颗粒型高模量剂干拌熔融分散均匀性的试验方法及评价指标.该方法具有试验操作过程简单、结果可量化比较的优点.结果表明:干拌温度、拌和时间、高模量剂中心聚集程度、高模量剂掺量四个因素对高模量剂熔融分散均匀性在0.01级别上影响均为高度显著,影响程度排序为:干拌温度>拌和时间>高模量剂中心聚集程度>高模量剂掺量.直投高模量剂与热集料干拌熔融分散效果最优的组合为180℃-60 s-0.3%-50%.Based on the principle of orthogonal test,a set of test methods and evaluation indexes for evaluating the melt dispersion uniformity of granular high modulus agent in dry mixing were put forward.This method has the advantages of simple operation process and quantifiable comparison of results.The results show that dry mixing temperature,mixing time,aggregation degree of high modulus agent center and dosage of high modulus agent all have highly significant effects on the melt dispersion uniformity of high modulus agent at the level of 0.01.The order of influence degree is:dry mixing temperature>mixing time>aggregation degree of high modulus agent center>dosage of high modulus agent.The best combination of direct high modulus agent and hot aggregate dry mixing melt dispersion effect is 180℃-60s-0.3%-50%.

关 键 词：直投高模量剂 高模量改性沥青混合料 干拌 熔融状态 分散均匀性 

分 类 号：U414[交通运输工程—道路与铁道工程]