石灰岩沥青混合料疲劳试验研究  

Fatigue testing of asphalt mixture with limerock coarse aggregate

作　　者：戚大贺[1] 赵磊[1] 贾林 

机构地区：[1]重庆交通大学,重庆400074 [2]中铁七局三公司,咸阳712000

出　　处：《石油沥青》2010年第3期27-29,共3页Petroleum Asphalt

摘　　要：目前沥青路面设计以应力为控制指标,使用高强度材料导致沥青路面早期破损严重。通过石灰岩AC-13级配疲劳试验分析,提出应变控制方式下沥青混合料的疲劳性能预估模型。The early pavement design precedure are essentially based on taking stresses generated at all level in the pavement as an indicator for evaluating the pavement serviceability. If more rigid materials are used, failure problem after initially opening to traffic would be serious. In this paper, fatigue testing of limerock AC - 13 graded mixture is carried out, modulus of mixture has been presented for predicting fatigue performance using strain as a crisis indicator to determine pavement serviceability.

关 键 词：疲劳试验 应变 预估模型 

分 类 号：U414[交通运输工程—道路与铁道工程]