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Bai, Wei (author), Xu, X. (author), Liu, Yaolan (author), Liang, Yunxiao (author), Shen, Yijie (author), Han, Zhenyu (author), Sheng, Zhendong (author), Chen, Rong (author), Zhu, Minhao (author)Systematic experimental investigations were conducted to study the microstructures and impact toughness of each heat affected zone (HAZ) formed during rail flash-butt welding. A high-strength carbide-free bainitic rail steel was subjected to different thermal simulation cycles to separately reproduce each HAZ subzone by tailoring the peak...journal article 2023
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Jiang, Xi (author), Zhu, Hehua (author), Yan, Zhiguo (author), Zhang, Fengshou (author), Ye, Fei (author), Li, Peinan (author), Zhang, X. (author), Dai, Zhiren (author), Bai, Yun (author), Huang, Baoshan (author)Backfill grouting plays a vital role in shield tunneling. This paper aims to present a comprehensive review of the development and progress of backfill grouting materials specifically designed for shield tunneling. Initially, the various components of grouts, such as pozzolanic materials, filling fine aggregates, and chemical additives, are...journal article 2023
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Li, Yuanyuan (author), Li, Jun (author), Li, Chao (author), Chen, Anqi (author), Bai, Tao (author), Tang, Shimin (author), Wu, Shaopeng (author), Gao, Y. (author), Zhu, Hongbin (author), Feng, Jianlin (author)A self-compacting steel slag epoxy resin concrete (SERC) was designed with steel slag as aggregate and epoxy resin as binder for rapid repair of road expansion joints and pavement. At the same time, a group of self-compacting basalt epoxy resin concrete (BERC) with basalt as coarse aggregate and limestone as fine aggregate was set up as the...journal article 2022