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) ›› 2020, Vol. 39 ›› Issue (06): 73-80.DOI: 10.3969/j.issn.1674-0696.2020.06.12

• 道路与铁道工程 • 上一篇    下一篇

基于PFC3D的低空隙率沥青混合料设计研究

凌天清1,杨云龙2,赵城3,朱利伟3,陈巧巧4   

  1. (1. 重庆交通大学 建筑与城市规划学院,重庆 400074;2. 成都建工蓉睿建材有限公司,四川 成都 610000; 3. 重庆交通大学 土木工程学院,重庆 400074; 4. 林同棪国际工程咨询(中国)有限公司, 重庆 401120)
  • 收稿日期:2019-02-11 修回日期:2019-05-21 出版日期:2020-06-26 发布日期:2020-06-29
  • 作者简介:凌天清(1962—),男,四川资阳人,教授,博士,主要从事路基路面结构设计理论与方法、路面新材料等方面的研究。E-mail:lingtq@163.com。 通信作者:陈巧巧(1994—),女,湖北荆州人,硕士,主要从事路基路面结构设计理论与方法方面的研究。E-mail:528052126@qq.com。

Design of Asphalt Mixture with Low Voidage Based on PFC3D

LING Tianqing1,YANG Yunlong2,ZHAO Cheng3,ZHU Liwei3,CHEN Qiaoqiao4   

  1. (1. College of Architecture and Urban Planning, Chongqing Jiaotong University, Chongqing 400074, China; 2. Chengdu Rongrui Construction Materials of CDCEG Co., Ltd., Chengdu 610000, Sichuan, China; 3. School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, China; 4. T. Y. Lin International Engineering Consulting (China) Co., Ltd., Chongqing 401120, China)
  • Received:2019-02-11 Revised:2019-05-21 Online:2020-06-26 Published:2020-06-29

摘要: 为进一步提高沥青路面的抗病害能力,基于对沥青混合料配合比设计方法和PFC3D模拟的充分把握,提出了改进的配合比设计方法,通过高、低温性能,以及水稳性和疲劳寿命试验,对设计得到的MAC-13和普通AC-13混合料进行了比较分析。结果表明:MAC-13很好地保持了密级配沥青混合料的水稳性,高温性能得到很大程度的提高,低温和抗疲劳性能亦满足要求;PFC3D模拟对于沥青混合料设计具有很好的适用性,其设计得到的低空隙率沥青混合料性能较好。

关键词: 道路工程, 沥青混合料, 低空隙率, PFC3D, 配合比设计

Abstract: In order to further improve the disease resistance of asphalt pavement, an improved mixing proportion design method was proposed, based on the full understanding of asphalt mixing proportion design method and PFC3D simulation. Through the high and low temperature performance, water stability and fatigue life test, the designed MAC-13 and common AC-13 mixture were compared and analyzed. The results show that MAC-13 maintains the water stability of the dense gradation asphalt mixture very well, improves the high temperature performance to a great extent, and its low temperature performance and fatigue resistance can also meet the requirements. PFC3D simulation is of great applicability for asphalt mixture design, and the designed asphalt mixture with low voidage has better performance.

Key words: highway engineering, asphalt mixture, low voidage, PFC3D, mixing proportion design

中图分类号: