矿粉宏细观特征耦合对沥青胶浆低温性能的影响

doi:10.13229/j.cnki.jdxbgxb201705018

吉林大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (5): 1465-1471.doi: 10.13229/j.cnki.jdxbgxb201705018

矿粉宏细观特征耦合对沥青胶浆低温性能的影响

郑传峰^{1, 2}, 马壮¹, 郭学东², 张婷¹, 吕丹¹, 秦泳¹

1.吉林大学建设工程学院,长春 130026;
2.吉林大学交通学院,长春 130022

收稿日期:2016-07-16 出版日期:2017-09-20 发布日期:2017-09-20
通讯作者: 郭学东(1955-),男,教授,博士生导师.研究方向:道桥工程加固与检测.E-mail:guoxd@jlu.edu.cn
作者简介:郑传峰(1981-),男,副教授,博士.研究方向:道路结构与材料.E-mail:cfzheng@jlu.edu.cn
基金资助:
国家自然科学基金项目(51508223,51178204); 中国博士后科学基金项目(2014M561299); 吉林省自然科学基金项目(20160101267JC)

Coupling effect of the macro and micro characteristics of mineral powder on the low-temperature performance of asphalt mortar

ZHENG Chuan-feng^{1, 2}, MA Zhuang¹, GUO Xue-dong², ZHANG Ting¹, LYU Dan¹, Qin Yong¹

1.College of Construction Engineering, Jilin University, Changchun 130026, China;
2.College of Transportation, Jilin University, Changchun 130022, China

Received:2016-07-16 Online:2017-09-20 Published:2017-09-20

摘要/Abstract

摘要： 分析了矿粉填料宏观掺量与其细观特征耦合效应对沥青胶浆低温性能的影响,并确定了矿粉宏观掺量。基于Rigden空隙率测试原理确定单位质量矿粉中所含有的细观空隙。基于临界破坏及疲劳破坏控制指标的变化规律,确定了不同低温条件下胶浆中结构沥青与自由沥青的最佳比例,并据此确定了最佳粉胶比。结果表明:从结构沥青与自由沥青比例的角度出发可以建立矿粉宏观掺量与其细观粉体特征的耦合。本文研究成果对于提升沥青胶浆低温路用性能具有重要意义。

关键词: 道路工程, 沥青胶浆, 低温性能, 矿粉, 耦合效应

Abstract: The coupling effects of the macro content and meso micro characteristics of mineral powder on the low-temperature performance of asphalt mortar were studied, and the macro content of the mineral powder was determined. The meso voids in unit mass of the mineral powder was measured based on the principle of Rigden void ratio. Based on the critical and fatigue damage control indicators, the optimum ratio of fixed asphalt to free asphalt in the asphalt mortar under different low-temperature conditions was determined, from which the optimum ratio of filler-asphalt can be obtained. Results show that the coupling of the macro content and meso micro characteristics of the mineral powder can be determined from the ratio of fixed asphalt to free asphalt. The results of this work are important for the improvement of the pavement performance of asphalt at low temperature.

Key words: road engineering, asphalt mortar, low-temperature performance, mineral powder, coupling effect

中图分类号:

U414

郑传峰, 马壮, 郭学东, 张婷, 吕丹, 秦泳. 矿粉宏细观特征耦合对沥青胶浆低温性能的影响[J]. 吉林大学学报(工学版), 2017, 47(5): 1465-1471.

ZHENG Chuan-feng, MA Zhuang, GUO Xue-dong, ZHANG Ting, LYU Dan, Qin Yong. Coupling effect of the macro and micro characteristics of mineral powder on the low-temperature performance of asphalt mortar[J]. 吉林大学学报(工学版), 2017, 47(5): 1465-1471.

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矿粉宏细观特征耦合对沥青胶浆低温性能的影响

Coupling effect of the macro and micro characteristics of mineral powder on the low-temperature performance of asphalt mortar

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