Research and Application of Materials Science

The Effect of Graphene Oxide on Mechanical Properties of Cement Mortar

FANLei (School of Civil Engineering and Architecture, Zhejiang University of Science & Technology; Zhejiang- Singapore Joint Laboratory for Urban Renewal and Future City), ZHENGJinhao (School of Civil Engineering and Architecture, Zhejiang University of Science & Technology; Zhejiang- Singapore Joint Laboratory for Urban Renewal and Future City)

Abstract


Cement is widely used in engineering applications, but it has both the characteristics of high brittleness and poor bending resistance. In this paper, the effects of different amounts of graphene oxide on the flexural strength and compressive strength of cement mortar were studied by doping a certain amount of graphene oxide with cement mortar, and the strengthening mechanism of graphene oxide on cement mortar was obtained through microstructure detection. It is found that graphene oxide has a significant enhancement effect on the macroscopic mechanical properties of cement mortar, and graphene oxide provides nano-nucleation sites and growth templates for cement mortar, accelerates the hydration process, reduces the voids between hydration products, greatly increases the compactness, and improves the macroscopic properties of cement-based materials.


Keywords


Graphene oxide; Cement mortar; Mechanical properties; Microscopic analysis

Full Text:

PDF

References


He. X H and Han. J Y. Preparation and properties of graphene oxide modified concrete[J]. Functional materials, 2022,53(7):7169-7174.

Sun. J L, Zhou. X D and Niu. Z Q. Graphene oxide and functionalized carbon nanotubes enhance the mechanical properties of cement-based materials[J]. highway, 2022,67(9):365-373.

Xiang. X P, Liu. S Y , Zhang Y, et al. Study on the self-shrinkage mechanism of graphene-doped cement mortar[J]. New building materials, 2022,49(5):62-69.

Zeng. J J, Gao. Z Y, Ruan D. Performance and research progress of graphene oxide cement-based composites[J]. Material Reports, 2021,35(1):198-205.

Xu. Y H and Fang. Y F. Mechanical properties and fractal characteristics of microstructure of graphene oxide cement slurry[J]. concrete, 2020(8):130-134.

Lv. S H, Sun T and Liu. J J, et al. Toughening effect and mechanism of graphene oxide nanoflakes on cementitious composites[J]. Journal of Composite Materials, 2014,31(3):644-652.

Lv. S H, Ma. Y J, Qiu. C C and Ju. H B. Study of graphene oxide reinforced toughened cementitious composites[J]. functional material, 2013,44(15):2227-2231.

Zhu Pan, Li He, Ling Qiu, et al. Mechanical Properties and Microstructure of a Graphene Oxide-cement Composite[J]. Cement & Concrete Composites, 2015(58):140-147.

Fan L. Interlayer stress transfer improvement in bi-layer graphene oxide/calcium silicate hydrate via CNTs[J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2024,692:133904.

Fan L. A high improvement of tensile properties and interfacial interaction of calcium silicate hydrate/hexagonal boron nitride layered nanostructures via defect field[J]. Computational Materials Science, 2024,233:112675.

Fan L, Song F, Xu J, et al. Interlayer sp3 Bonds and Chirality at Bilayer Graphene Oxide/Calcium Silicate Hydrate Abnormally Enhance Its Interlayer Stress Transfer[J]. ACS Omega, 2024,9(9):10343-10352.

Wang. Z M and Zhang. H L. Study on the mechanical properties of graphene oxide nanosheet reinforced cement-based composites[J]. Industrial buildings, 2021,51(2):153-157.

Lv S H, Liu J J, Sun T, et al. Effect of GO nanosheets on shapes of cement hydration crystals and their formation process[J]. Construction and Building Materials, 2014,64:231-239.

Long W J, Wei J J, Xing F, et al. Enhanced dynamic mechanical properties of cement paste modified with graphene oxide nanosheets and its reinforcing mechanism[J]. Cement and Concrete Composites, 2018,93:127-139."




DOI: https://doi.org/10.33142/rams.v6i1.12885

Refbacks

  • There are currently no refbacks.


Copyright (c) 2024 Lei FAN, Jinhao ZHENG

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.