采用GTM设计的沥青混合料路用性能影响因素  

On Influence Factors to Asphalt Mixture Service Performance Designed by GTM

作　　者：魏如喜[1] 李建[2] 

机构地区：[1]天津市市政工程研究院,天津300074 [2]天津市公路工程总公司,天津300074

出　　处：《中国市政工程》2009年第4期1-3,共3页China Municipal Engineering

摘　　要：以GTM法设计的AC-16C改性沥青混合料为基础,在级配、油石比、粉油比变化的条件下,分别对混合料进行车辙、低温弯曲破坏、水稳定性和弯曲疲劳等试验。试验结果表明,对于沥青混合料的各项路用性能,4.75mm通过率、油石比、粉油比均存在一最佳值。研究结论对道路工作人员进行沥青混合料配合比设计和施工控制有指导意义。There were different tests on AC-16C modified asphalt mixture designed by GTM under the changing conditions of gradation, asphalt-aggregate ratio and filler-bituminous ratio, including wheel tracking, low temperature bending failure, water stability and flexural fatigue tests, etc. The results showed that for different kinds of mixture service performance, the passing ratio of 4.75 mm, asphalt-aggregate ratio and filler-bituminous ratio all existed the optimum values. This conclusion was guiding significance in the asphalt mixture mix design and its construction controlling for the road staff.

关 键 词：改性沥青混合料 GTM设计方法 4.75 mm通过率 油石比 粉油比 

分 类 号：U414.75[交通运输工程—道路与铁道工程]