Influence of Graphene Nanosheets on Rheology, Microstructure, Strength Development and Self-Sensing Properties of Cement Based Composites
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Date
2018-03-15
Authors
Rehman, Sardar Kashif Ur
Ibrahim, Zainah
Memon, Shazim Ali
Aunkor, Md. Toasin Hossain
Javed, Muhammad Faisal
Mehmood, Kashif
Ali Shah, Syed Mustafa
Journal Title
Journal ISSN
Volume Title
Publisher
MDPI
Abstract
In this research, Graphene oxide (GO), prepared by modified hammer method,
is characterized using X-ray Diffraction (XRD), Fourier Transform Infrared (FT-IR) Spectrometry and
Raman spectra. The dispersion efficiency of GO in aqueous solution is examined by Ultraviolet–visible
spectroscopy and it is found that GO sheets are well dispersed. Thereafter, rheological properties,
flow diameter, hardened density, compressive strength and electrical properties of GO based
cement composite are investigated by incorporating 0.03% GO in cement matrix. The reasons for
improvement in strength are also discussed. Rheological results confirm that GO influenced the flow
behavior and enhanced the viscosity of the cement based system. From XRD and Thermogravimetric
Analysis (TGA) results, it is found that more hydration occurred when GO was incorporated in cement
based composite. The GO based cement composite improves the compressive strength and density
of mortar by 27% and 1.43%, respectively. Electrical properties results showed that GO–cement
based composite possesses self-sensing characteristics. Hence, GO is a potential nano-reinforcement
candidate and can be used as self-sensing sustainable construction material.
Description
Keywords
graphene oxide, GO–cement composite, microstructure, rheological properties, bond strengthening, self-sensing
Citation
Kashif Ur Rehman, S.; Ibrahim, Z.; Memon, S.A.; Aunkor, M.T.H.; Faisal Javed, M.; Mehmood, K.; Shah, S.M.A. Influence of Graphene Nanosheets on Rheology, Microstructure, Strength Development and Self-Sensing Properties of Cement Based Composites. Sustainability 2018, 10, 822