期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 162, 期 -, 页码 229-238出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2017.12.028
关键词
High-speed railway ballastless track; Asphalt concrete railway substructure; Epoxy asphalt-based concrete; Material performance; Structural performance
资金
- National Natural Science Foundation of China [51378122, 51678146]
- Scientific Research Foundation of Graduate School of Southeast University [YBJJ1680]
In order to improve the serviceability and service life of high-speed railway ballastless track, the epoxy asphalt-based concrete railway substructure (EAC-S) is proposed. Three epoxy asphalt-based concretes (EACs), containing the conventional epoxy asphalt concrete (CEAC), the rubber powder modified epoxy asphalt concrete (REAC), and the thermoplastic matrix asphalt modified epoxy asphalt concrete (MEAC), were designed at first. Afterwards, the material performance of the EACs was evaluated by a series of laboratory experiments. Finally, a finite element model was developed to investigate the structural performance of EAC-S. Results show that all the three EACs are suitable for the high-speed railway substructure, and the EACs could improve the cracking resistance and deformability of substructure. The designed EAC-S has better capacity in vibration attenuation than the conventional substructure, and could improve the stress and deformation behavior of the subgrade bed. (C) 2017 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据