基于灰色突变理论的沥青老化行为分析  

Analysis of the Aging Behavior of Asphalt Based on Gray and Catastrophic Theories

作　　者：张红梅[1] 边开磊[2] 刘圣洁[3] 徐东[3] 

机构地区：[1]青岛理工大学(临沂)土建工程系,山东临沂273400 [2]中国石油天然气管道工程有限公司,河北廊坊065001 [3]长安大学特殊地区公路工程教育部重点实验室,陕西西安710064

出　　处：《郑州大学学报（工学版）》2013年第1期31-34,共4页Journal of Zhengzhou University（Engineering Science）

基　　金：国家西部交通建设科技项目(200831800029)

摘　　要：为了研究沥青热氧老化的时间规律,利用室内旋转薄膜(RTFOT)试验,根据系统工程科学理论和非线性科学的灰色突变理论模型,对不同老化程度的沥青性能指标值进行灰色生成处理,建立沥青老化的灰色尖点突变模型,对沥青热氧老化的规律进行分析.结果表明,沥青的老化过程存在突变现象,且其性能突变与老化反应之间存在滞后现象,沥青混合料拌合和热储存时间应保证小于50 min,沥青路面应采取适当措施延长老化突变时间,使路面具有更长的服务寿命.In order to forecast the time regularity of the asphalt thermal and oxygen aging, the RTFOT experi-ment was applied, according to the principle of evaluating system stability with the variable tendency of its compatibility, the destabilization of asphalt aging was predicted with the grey-cusp-catastrophic destabilization prediction model. The research results show that the catastrophe exits in the aging process, and hysteresis phe- nomenon exits between catastrophe and aging actions. For the asphalt mixture, the heating time should not ex-ceed 50 min, and to make the asphalt pavement have the long services life, the measures should be taken to extend the catastrophic happened time.

关 键 词：道路工程 沥青老化 旋转薄膜烘箱老化 老化规律 灰色突变 

分 类 号：U414[交通运输工程—道路与铁道工程]