Evolution of aggregate surface texture due to tyre-polishing 被引量：2

Evolution of aggregate surface texture due to tyre-polishing

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摘要 Three kinds of aggregates were polished by genuine pneumatic rubber tyres.The initial states of surface texture and dynamic friction coefficient were measured and their developments in polishing process were monitored.The characterizations of height distribution and power spectral density of aggregate surface texture were estimated.The changes of micro-texture were also investigated based on a fractal filtering method with sound theoretical backgrounds of rubber friction on rough surfaces.Global height reduction and differential removal of mineral component are observed in polishing process.It is concluded that the tyre-polishing action plays the critical roles in the micro-scale texture,and the evolution of friction of aggregate is governed by the micro-texture changes due to the differential removal of mineral component. Three kinds of aggregates were polished by genuine pneumatic rubber tyres. The initial states of surface texture and dynamic friction coefficient were measured and their developments in polishing process were monitored. The characterizations of height distribution and power spectral density of aggregate surface texture were estimated. The changes of micro-texture were also investigated based on a fractal filtering method with sound theoretical backgrounds of rubber friction on rough surfaces. Global height reduction and differential removal of mineral component are observed in polishing process. It is concluded that the tyre-polishing action plays the critical roles in the micro-scale texture, and the evolution of friction of aggregate is governed by the micro-texture changes due to the differential removal of mineral component.

作者陈先华 B.STEINAUER 王大为

机构地区 Transportation College Institute of Road and Traffic Engineering

出处《Journal of Central South University》 SCIE EI CAS 2011年第1期259-265,共7页 中南大学学报（英文版）

基金 Project(50809053) supported by the National Natural Science Foundation of China Project(FE 04.208/2007/CRB) funded by Federal Highway Research Institute (Bast),Germany

关键词 tyre polishing dynamic friction coefficient aggregate surface texture MICRO-TEXTURE 表面纹理抛光轮胎演变集料动态摩擦充气橡胶矿物成分

分类号 TQ336.1 [化学工程—橡胶工业] TS101.923 [轻工技术与工程—纺织工程]

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