Effect of hydration process on the interlayer bond tensile mechanical properties of ultra-high performance concrete for 3D printing
文献类型：期刊论文
| 作者 | Yang, Yekai2,5; Zhang, Chiyu2,5; Liu, Zhongxian3; Dong, Liang3; Yang, Ting4; Zhao, Qingxin2,5; Wu, Chengqing1 |
| 刊名 | CONSTRUCTION AND BUILDING MATERIALS
 |
| 出版日期 | 2024-11-15 |
| 卷号 | 451页码:20 |
| 关键词 | 3DP-UHPC Bond tension Interface property Microstructure Stress-strain relationship |
| ISSN号 | 0950-0618 |
| DOI | 10.1016/j.conbuildmat.2024.138902 |
| 英文摘要 | It is crucial to reveal interlayer interface characteristics for fully analysing the mechanical properties of 3D printed ultra-high performance concrete (3DP-UHPC). Despite its significance, the interlayer bonding behaviour of 3DP-UHPC has not been fully explored. To fill this gap, this study adopted different curing times and conditions to investigate the effect of hydration process on the interlayer microstructure and mechanical properties under different interlayer interval times. As the result show that, the interlayer microstructure remained dense for interval times less than 5 minutes, but interlayer gaps became increasingly apparent as the interval time exceeded this threshold. Promoting hydration, however, helped heal interlayer defects in 3DP-UHPC. Additionally, the interlayer bond tensile strength gradually decreased with increasing interval time but remained almost unchanged when the interval time exceeded 1 day. Notably, hot water bath curing enhanced the bond tensile strength of specimens with interval times within 60 minutes, but its improvement was insignificant for interval times exceeding 1 day. Based on these experimental results, a preliminary interlayer bond tensile stressstrain equation of 3DP-UHPC was derived. The findings of this study offer promising avenues for the improvement and promotion of 3DP-UHPC technology. |
| 资助项目 | National Natural Science Foundation of China[52408560] ; Science and Tech-nology Project of Hebei Education Department[QN2023190] ; S & T Program of Qinhuangdao[202401A120] |
| WOS研究方向 | Construction & Building Technology ; Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001345756400001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/43031]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Liu, Zhongxian; Wu, Chengqing |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, Wuhan 430071, Hubei, Peoples R China 2.Yanshan Univ, Hebei Key Lab Green Construction & Intelligent Mai, Qinhuangdao 066000, Peoples R China 3.Tianjin Chengjian Univ, Tianjin Key Lab Civil Struct Protect & Reinforceme, Civil Struct Protect & Reinforcement, Tianjin 300384, Peoples R China 4.Guangzhou Univ, Earthquake Engn Res Test Ctr, Guangzhou 510006, Peoples R China 5.Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Yekai,Zhang, Chiyu,Liu, Zhongxian,et al. Effect of hydration process on the interlayer bond tensile mechanical properties of ultra-high performance concrete for 3D printing[J]. CONSTRUCTION AND BUILDING MATERIALS,2024,451:20. |
| APA | Yang, Yekai.,Zhang, Chiyu.,Liu, Zhongxian.,Dong, Liang.,Yang, Ting.,...&Wu, Chengqing.(2024).Effect of hydration process on the interlayer bond tensile mechanical properties of ultra-high performance concrete for 3D printing.CONSTRUCTION AND BUILDING MATERIALS,451,20. |
| MLA | Yang, Yekai,et al."Effect of hydration process on the interlayer bond tensile mechanical properties of ultra-high performance concrete for 3D printing".CONSTRUCTION AND BUILDING MATERIALS 451(2024):20. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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