矿粉粒径对沥青胶浆性能影响的试验研究  

Study of influence of mineral filler diameter on asphalt mortar

作　　者：莫石秀[1,2] 孔令云[3] 王娜[3,4] 

机构地区：[1]长安大学公路学院,陕西西安710064 [2]广东省路桥建设发展有限公司,广东广州510635 [3]招商局重庆交通科研设计院有限公司,重庆400067 [4]重庆交通大学土木建筑学院,重庆621000

出　　处：《广西大学学报（自然科学版）》2011年第4期616-621,共6页Journal of Guangxi University（Natural Science Edition）

基　　金：国家西部交通建设科技项目(200631800081);广东省交通运输厅科技项目(2010-02-009)

摘　　要：为了研究矿粉粒径对沥青胶浆性能的影响,采用针入度、软化点、延度、表面能等试验,分析了沥青胶浆性能与矿粉粒径、粉胶比的关系,并从表面能的角度分析了其机理。研究结果表明:沥青胶浆粉胶比应采用试验后燃烧法确定的实际值;沥青胶浆的针入度、软化点、延度与实际粉胶比之间有良好的相关性;沥青胶浆的软化点随着矿粉粒径的减小而增大,而延度、针入度则随着矿粉粒径的减小而减小;沥青胶浆体系的粘附功是引起沥青胶浆性能随矿粉粒径、粉胶比变化规律的根本原因。In order to study the influence of mineral filler diameter on asphalt mortar,the relation between performance of asphalt mortar and the parameters such as filler-bitumen ratio and mineral filler diameter was analyzed through penetration degree,soften point,ductility and surface energy tests.The results indicate that the actual filler-bitumen ratio of asphalt mortar should be obtained by burning the tested specimen;there is a good co-relation between the penetration degree,soften point,ductility of asphalt mortar and filler-bitumen ratio;with the decrease of filler diameter,the size of softening point increases,but penetration degree and ductility decrease;the work of adhesion in asphalt mortar is the radical reason that leads to the performance change of asphalt mortar.

关 键 词：沥青路面 沥青胶浆 矿粉粒径 粉胶比 粘附功 

分 类 号：U416.217[交通运输工程—道路与铁道工程]