中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2008, Vol. 27 ›› Issue (5): 748-752.

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蠕变试验评价沥青稳定碎石高温流动变形性能

杨大田1, 夏文军2, 杨锡武1   

  1. 1. 重庆交通大学 山区道路建设与维护技术实验室, 重庆 400074;
    2. 重庆高速公路发展有限公司 渝东分公司, 重庆 401147
  • 收稿日期:2008-01-25 修回日期:2008-02-26 出版日期:2008-10-20 发布日期:2016-11-07
  • 作者简介:杨大田(1973-),男,重庆市人,硕士,主要从事路面材料和结构设计研究及实验教学。E-mail:tywo@126.com。

Creep Experiments Evaluating the Flowing Deformation of the Asphalt-Treated Permeable Base in High Temperature Condition

YANG Da-tian1, XIA Wen-jun2, YANG Xi-wu1   

  1. 1. Hi-tech Laboratory for Mountain Road Construction & Maintenance, Chongqing Jiaotong University, Chongqing 400074, China;
    2. Yudong Filiale, Chongqing Expressway Development Co. Ltd, Chongqing 401147, China
  • Received:2008-01-25 Revised:2008-02-26 Online:2008-10-20 Published:2016-11-07

摘要: 基于大型马歇尔试验确定6种沥青稳定碎石混合料的最佳油石比,击实成型蠕变试验试件。利用单轴静态蠕变试验结果-蠕变模量和拟合曲线斜率值,及动态蠕变试验拟合曲线斜率值综合评价6种沥青稳定碎石抗高温流动变形能力,试验表明在矿料级配范围上限与中值之间的沥青稳定碎石混合料抗高温变形能力最强。因此,在沥青稳定碎石混合料组成设计时矿料级配曲线应在上限与中值之间;特别地,ATB-25矿料级配曲线应靠近中值,ATB-30矿料级配曲线应靠近上限。

关键词: 蠕变, 沥青稳定碎石, 流动变形

Abstract: The optimum asphalt-aggregate ratio of six kinds of asphalt-treated permeable bases is found out according to large scale Marshall tests.The samples of using the creep test are stroked by the large scale Marshall Sample.Creep modulus and value gained by the static creep experiment evaluate the flowing deformation of six types of asphalt-treated permeable in high temperature condition.At the same way,value gained by the dynamic creep test can also do this.It tries to prove that the best anti-deforming ability of the asphalt-treated permeable base mixtures is between upper limit and the middle value in the minerals aggregate grades,in the high temperature condition.Therefore,minerals aggregate grade curve should be between upper limit and the middle value;ATB-25 should be close to the medium value,and ATB-30 should be close to the upper limit.

Key words: creep, the asphalt-treated permeable base, flowing deformation

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