Experimental study on interfacial bonding performance between underwater non-dispersible concrete and soil/pile concrete

Journal Information

J. Hefei Univ. Tech. (Nat. Sci.), Oct.2025, Vol.48 No.10: 1422-1427

DOI: 10.3969/j.issn.1003-5060.2025.10.018

Authors

LIU Xiangsheng $ ^{1} $, LI Hongcen $ ^{2,3,4} $, JI Houqiang $ ^{1} $,

(1. Anhui Transportation Holding Group Co., Ltd., Hefei 230088, China; 2. School of Civil and Hydraulic Engineering, Hefei University of Technology, Hefei 230009, China; 3. Engineering Research Center of Low-carbon Technology and Equipment for Cement-based Materials of Ministry of Education, Hefei 230009, China; 4. Anhui Province Engineering Research Center of Low-carbon Technology for Cement-based Materials, Hefei 230009, China)

Abstract and Keywords

Abstract: In order to study the interfacial bonding performance between underwater non-dispersible concrete and soil/pile concrete, a series of interfacial bonding tensile and shear tests were designed, and the effects of different fly ash content of underwater non-dispersible concrete on the failure forms and mechanical properties of the interfacial bonding specimens were considered. The test results show that the tensile and shear failure of underwater non-dispersible concrete and soil occurs on the soil side. The tensile and shear failure of the interface between underwater non-dispersible concrete and pile concrete initiates at the interface. Notably, the performance of underwater non-dispersible concrete is relatively superior when the fly ash content is 20%.

Keywords: tensile strength of interfacial bonding; shear strength of interfacial bonding; underwater non-dispersible concrete; pile concrete; soil

作者信息

刘祥胜 $ ^{1} $，李虹岑 $ ^{2,3,4} $，纪厚强 $ ^{1} $，刘锦程 $ ^{2} $，洪丽 $ ^{2,3,4} $，詹炳根 $ ^{2,3,4} $

（1. 安徽省交通控股集团有限公司，安徽合肥 230088；2. 合肥工业大学土木与水利工程学院，安徽合肥 230009；3. 水泥基材料低碳技术与装备教育部工程研究中心，安徽合肥 230009；4. 安徽省水泥基材料低碳技术工程研究中心，安徽合肥 230009）

摘要和关键词

摘要: 为研究水下不分散混凝土与土体及桩身混凝土间界面的黏结性能,文章设计一系列界面黏结受拉和受剪试验,试验特别考虑了不同粉煤灰掺量对水下不分散混凝土的界面黏结破坏形态及力学性能的影响。结果表明:水下不分散混凝土与土体的受拉、受剪破坏均在土体的同一侧;水下不分散混凝土与桩身混凝土间界面的受拉、受剪破坏均位于两者界面处。其中,当粉煤灰掺量为20%时,水下不分散混凝土的性能相对较好。

关键词: 界面黏结抗拉；界面黏结抗剪；水下不分散混凝土；桩身混凝土；土体

Funding

国家重点研发计划资助项目（2020YFC1909901）；合肥工业大学产学研校企合作资助项目（W2020JSKF0615）

合肥工业大学学报(自然科学版)

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