期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 264, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2020.120655
关键词
Bending test; C-FRCM composite; Ductility; ICCP; Tensile test; Ultimate bearing capacity
资金
- Key-Area Research and Development Program of Guangdong Province [2019B111107002]
- National Key Research and Development Program of China [2018YFE0124900]
- National Natural Science Foundation of China [51538007/51778370/51861165204]
- Natural Science Foundation of Guangdong Province [2018A030313208/20178030311004]
- State Key Laboratory of Subtropical Building Science (South China University of Technology) [2018ZA02]
- Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, Shenzhen Durability Center for Civil Engineering (Shenzhen University) [GDDCE 18-5]
This paper presents experimental investigations on the tensile and flexural behavior of Carbon-Fabric Reinforced Cementitious Matrix (C-FRCM) composites in Impressed Current Cathodic Protection (ICCP). A total of eighteen C-FRCM composites are fabricated and tested. The effects of the current density in ICCP and the ply number of carbon fabric (CF) mesh on the mechanical properties of C-FRCM composites are studied. In the tensile tests, a digital image correlation (DIC) system is employed to capture the strain evolution of C-FRCM composites during the loading process. The parameters of the stress-strain relationships of C-FRCM composites are determined from the experimental results. In the bending tests, the load-central deflection relationship of the specimens is presented. It is found that the current density has detrimental effects on both ultimate bearing capacity and ductility of C-FRCM composites. In the ICCP procedure, increasing the ply number of CF mesh is an effective way to increase the safety margin of C-FRCM composites to resist the external force. (C) 2020 Elsevier Ltd. All rights reserved.
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