集料表面纹理粗糙度的测量 - 交通运输工程学报.PDFVIP

第9 卷　第1期 交 通 运 输 工 程 学 报 Vol.9　No.1 2009 年2 月 Journal of T raffic and Transportation Engineering Feb.2009 :1671-1637(2009)01-0050-06 1 2 1 周纯秀 , 陈国明,谭忆秋 (1. , 　150090; 2. , 　300300) 　:为了有效评价集料表 纹理粗糙程度对沥青混合料路用性能的影响,采用激光轮廓仪直接 测量了9种不同集料的表 纹理轮廓曲线,通过轮廓滤波方法将其划分为宏观纹理和微观纹理,并 应用几何统计方法, 以算术平均偏差、算术平均波长和轮廓偏斜度为评价指标, 对其表 纹理粗糙 度进行了定量评定。分析结果表明:算术平均偏差最适宜用来描述集料表 纹理的粗糙程度,算术 平均偏差越大, 集料表 纹理的粗糙度越大;波长2 mm为集料表 宏观纹理和微观纹理的界限值; 根据算术平均偏差, 集料表 纹理粗糙度可以划分为4 级。 :路 材料;集料表 纹理;沥青混合料路用性能;激光轮廓仪;粗糙度 :U414.18　　　:A Roughness measurement of aggregate surface texture 1 2 1 ZHOU Chun-xiu , CHEN Guo-ming , TAN Yi-qiu (1.School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, Heilongjiang, China;2.School of T ransportation Engineering, Civil Aviation University of China, Tianjin 300300, China) Abstract:In order to effectively evaluate the remarkably influence of the roughness of aggregate surface texture on the pavement performance of asphalt mixture, nine different aggregate surface textures were measured directly by using laser profilometer, then the textures were divided into micro-textures and macro-textures by using profile filter method.Geometry statistical method was adopted to evaluate the roughnesses of the textures quantitatively .The evaluation indexes were arithmetic mean deviation, arithmetic mean wavelength and outline skewness.Evaluation result indicates that arithmetic mean deviation is the most conformable index to describe the roughness of aggregate surface texture.M