期刊
CEMENT & CONCRETE COMPOSITES
卷 134, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.cemconcomp.2022.104777
关键词
CFRCM; Graphene nanofluid additive; High-performance cementitious composites; Cathodic protection technology
资金
- National Key Research and Development Program of China [2018YFE0124900]
- Key-Area Research and Development Program of Guangdong Province [2019B111107002]
- Regional Joint Project for Foundation and Applied Basic Research of Guangdong Province [2019A1515110746, 2021A1515110292]
- National Natural Science Foundation of China [52108231]
In this study, a low-cost and industrially scalable graphene nanofluid additive (GNA) was successfully incorporated into carbon fibre-reinforced cement mortar (CFRCM) to enhance its functionalities. The results showed significant improvements in the properties of the cement mortar, including strength, thermal conductivity, and electrical conductivity, when modified with GNA. Moreover, the service life of the cathodic protection system using G-CFRCM was significantly extended.
In this study, a low-cost and industrially scalable graphene nanofluid additive (GNA) was incorporated into carbon fibre-reinforced cement mortar (CFRCM) to enhance its functionalities. The results indicated that the synergistic effect of the carbon fibres and the GNA significantly improved many properties of the cement mortar. For the CFRCM modified with GNA (G-CFRCM), the maximum increases in the flexural and compressive strengths, 101% and 126%, respectively, which were much greater than those of the control, 25% and 45%, respectively, and the maximum increases in the thermal and electrical conductivities of the G-CFRCM, 36% and 68%, respectively, were much greater than those of the control, 27% and 19%, respectively. In addition, a surprising increase in the service life of the corresponding cathodic protection system with the G-CFRCM, more than 200% compared to that of the control showed, that this novel composite material is ideally suited for applications in high-efficiency cathodic protection systems.
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