Study on interfacial performance of ordinary concrete composite structure strengthened by ultra-high performance concrete

Study on interfacial performance of ordinary concrete composite structure strengthened by ultra-high performance concrete —A review

Published:2023-08-03 Issue:15 Volume:26 Page:2797-2813
ISSN:1369-4332
Container-title:Advances in Structural Engineering
language:en
Short-container-title:Advances in Structural Engineering

Author:

Ya Lu¹,Xinhua Song¹²³^ORCID,Renyuan Du¹,Dongsheng Song¹,Songbai Liu¹,Wei Xu¹,Xiangguo Wu⁴⁵

Affiliation:

1. Jiangxi Building Materials Research and Design Institute Co., Ltd., Nanchang, China

2. School of Civil Engineering and Hydraulic Engineering, Tsinghua University, Beijing, China

3. Nanchang University, Nanchang, China

4. Key Lab of Structures Dynamic Behavior and Control of the Ministry of Education, Key Lab of Smart Prevention, Harbin Institute of Technology, Harbin, China

5. School of Civil Engineering, Fuzhou University, Fuzhou, China

Abstract

Ultra-high performance concrete (UHPC) is widely used in the field of reinforcement due to its high tensile strength, compressive strength and durability. The common force of the interface between old and new materials is the key problem to be solved urgently in the reinforced structure. Therefore, aiming at the problem of interface properties of UHPC reinforced Normal concrete (NC) composite structure, and this review reviews the latest progress in three aspects of interface mechanical properties, interface microscopic properties and interface durability of UHPC reinforced NC. Among them, the mechanical properties of the interface include the constrained shrinkage force properties and the interface bonding force properties. The microstructure properties of the interface include the microstructure observation test method and the microstructure structure model. The durability of the interface includes the carbonation resistance prediction model, freezing resistance and impermeability. In addition, based on the existing research, this paper puts forward some suggestions on strengthening NC with UHPC.

Funder

Key Research and Development Program of Jiangxi Province

National key R& D projects in the 13th five year plan of China

Publisher

SAGE Publications

Subject

Building and Construction,Civil and Structural Engineering

Link

http://journals.sagepub.com/doi/pdf/10.1177/13694332231192787

Reference140 articles.

1. Scratch test model for the determination of fracture toughness