公路石灰岩填料表面改性及性能指标研究  

Study on surface modification and performance index of highway limestone filler

作　　者：吕奉丽 丁永玲 叶亚丽[1] 张爱勤[1] LYU Fengli;DING Yongling;YE Yali;ZHANG Aiqin(Shandong Jiaotong University,Shandong Jinan 250357 China)

机构地区：[1]山东交通学院,山东济南250357

出　　处：《山东交通科技》2021年第6期74-77,共4页

摘　　要：以钛酸酯201为改性剂,乙醇为分散剂,采用机械力化学法对公路石灰岩填料进行表面改性,以活化度、吸油值和界面接触角为评价指标研究钛酸酯201改性公路石灰岩填料的表面改性技术,通过试验对矿粉性能指标进行分析,提出改性矿粉的路用性能评价指标,并运用SEM和XRD微观表征手段分析其改性作用机理。With titanate 201 as modifier and ethanol as dispersant,the surface of highway limestone filler is modified by mechanochemical method.The surface modification technology of highway limestone filler modified by titanate 201 is studied with activity,oil absorption value and interface contact angle as evaluation indexes.Through test and analysis of the performance indexes of mineral powder filler specified,the performance evaluation indexes of modified mineral powder filler are put forward and the modification mechanism is analyzed by SEM and XRD.

关 键 词：钛酸酯201 石灰岩 填料 表面改性 性能指标 

分 类 号：U414[交通运输工程—道路与铁道工程]