市政技术2024，Vol.42Issue(9)：191-197,207,8.DOI:10.19922/j.1009-7767.2024.09.191
基于微观形貌的钢渣集料耐磨性能衰减规律研究
Study on the Attenuation Law of Wear Resistance of Steel Slag Aggregate Based on Microstructure
摘要
Abstract
In order to study the attenuation law of wear resistance and mechanization of steel slag aggregate,the ac-celerated polishing machine was used to polish two kinds of steel slag aggregates.Under different polishing time,the polishing values of two kinds of aggregates were measured by pendulum instrument to analyze the attenuation law of wear resistance;The surface micro-morphology was measure by laser confocal microscope to study the change rule of micro-morphology with polishing time;The grey correlation analysis method was used to analyze the correlation between the microscopic morphology evaluation index of steel slag aggregate and the polishing value under different polishing time.The results show that the polishing values of the two steel slag aggregates decrease gradually with the increase of polishing time;The wear resistance and skid resistance of steel slag aggregate depend on the way of ma-terial preparation and processing characteristics;The correlation between the polishing value of steel slag aggregate and the peak density and sharpness is above 0.75,which can be used as a reliable index to evaluate the wear resistance.The arithmetic mean height,maximum height,peak mean curvature and skewness can be used as auxiliary indexes.关键词
道路工程/钢渣/集料/微观形貌/耐磨性能/规律Key words
road engineering/steel slag/aggregate/micro-morphology/wear resistance/law分类
建筑与水利引用本文复制引用
刘新元,姚腾飞,武旭,刘沛麟,屈上智..基于微观形貌的钢渣集料耐磨性能衰减规律研究[J].市政技术,2024,42(9):191-197,207,8.基金项目
甘肃省自然科学基金在站博士后专项(23JRRA875) （23JRRA875）
