摘要
为确定干法TPCB改性沥青AC-13混合料的制备参数,研究TPCB掺量、拌合时间、拌合温度和矿料加热温度对动稳定度和冻融劈裂强度比的影响规律,通过直观分析、方差分析和多因素相互作用分析方法,确定干法TPCB改性沥青混合料制备参数,检验干法TPCB改性沥青混合料室内性能.研究结果表明:TPCB掺量对动稳定度和冻融劈裂强度的影响最大;室内制备程序将加热温度为170~180℃的粗细集料和10%TPCB置于拌合机干拌15 s,然后加入160℃基质沥青湿拌90 s,最后加入加热的矿粉拌和90 s,拌合温度为170~180℃;干法TPCB改性沥青AC-13混合料具有良好的高温性能与水稳定性能.
In order to determine the preparation parameters of dry TPCB modified asphalt AC-13 mixture,the effects of TPCB content,wet mixing time,mixing temperature and mineral aggregate heating temperature on dynamic stability and freeze-thaw splitting strength ratio are studied.Through visual analysis,variance analysis and multi factor interaction analysis,the preparation parameters of dry TPCB modified asphalt mixture are determined,and the indoor performance of dry TPCB modified asphalt mixture is tested.Results show that the content of TPCB has the greatest influence on dynamic stability and freeze-thaw splitting strength;In the indoor preparation procedure,we can place the coarse and fine aggregates heated at 170~180℃and 10%TPCB in the mixer for dry mixing for 15 seconds,then add 160℃base asphalt for wet mixing for 90 seconds,and finally add heated mineral powder for mixing for 90 seconds at 170~180℃.The dry TPCB modified asphalt AC-13 mixture has a good and high temperature performance and water stability.
作者
王伟
杨晚生
甘新众
刘群艳
王凯
WANG Wei;YANG Wansheng;GAN Xinzhong;LIU Qunyan;WANG Kai(College of Road and Bridge Engineering,Hunan Communication Polytechnic,Changsha 410132,China;Jiangxi Yichun Municipal Transportation Construction Co.,Ltd.,Yichun 336000,China;Jiangxi Yichun Highway Development Center,Yichun 336000,China;School of Traffic&Transportation Engineering,Changsha University of Science and Technology,Changsha 410114,China)
出处
《湖南科技大学学报（自然科学版）》
CAS
北大核心
2022年第4期39-48,共10页
Journal of Hunan University of Science And Technology：Natural Science Edition
基金
湖南省教育厅科学研究项目资助(22B0984)
江西省交通运输厅科技项目资助(2021H0019
2020H0023)。
关键词
道路工程
TPCB改性沥青混合料
干法
多因素相互作用
制备参数
road engineering
TPCB modified asphalt mixture
dry mixing method
multi factor interaction
preparation parameters
