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高速公路SMA混合料配合比设计及路用性能研究
引用本文:申爱琴,王娜.高速公路SMA混合料配合比设计及路用性能研究[J].公路,2006(6):137-147.
作者姓名:申爱琴  王娜
作者单位:1. 长安大学公路学院,西安市,710064
2. 山东基建股份有限公司,济南市,250014
摘    要:针对京珠高速公路粤境北段路线纵坡大,途经地区地形复杂、降雨量大、多雾且能见度差、夏季高温、冬季冰冻、交通量大且超载严重等恶劣条件,采用SBS改性台湾沥青,通过对改性沥青玛蹄脂性能分析、SM A矿料级配优化、体积特征控制参数严格筛选,从19种初试SM A混合料中优选出7种具有代表性的SM A混合料,通过路用性能检验,成功铺筑了试验段。

关 键 词:SMA配合比设计  改性沥青玛蹄脂  矿料级配优化  路用性能
文章编号:0451-0712(2006)06-0137-11
收稿时间:2006-01-16
修稿时间:2006-01-16

Gradation Design of SMA Mixture in Jing-Zhu Expressway and Research on Road Performances
SHEN Ai-qin,WANG Na.Gradation Design of SMA Mixture in Jing-Zhu Expressway and Research on Road Performances[J].Highway,2006(6):137-147.
Authors:SHEN Ai-qin  WANG Na
Abstract:In the north of Jing-Zhu Expressway,there are many unfavorable features,such as large longitudinal grade of line,complicate topographic form,large precipication,heavy fog and poor ability of sight,high temperature in summer,freezing in winter,heavy traffic and serious surcharge in passing area.Aiming at these,in this research SBS modified Taiwan asphalt is used.Furthermore,by analyzing performance of modified asphalt matrix,optimizing mineral aggregate gradation of SMA and selecting volumetric characteristic controlling indexes strictly,seven kinds of typical SMA mixtures are selected from 19 kinds of tentative mixtures.Then the road performances are tested. So the tested road is laid down successfully.
Keywords:SMA gradation design  modified asphalt matrix  optimizing mineral aggregate gradation  road performance
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