Influence of Graphene Nanosheets on Rheology, Microstructure, Strength Development and Self-Sensing Properties of Cement Based Composites

Sardar Kashif Ur Rehman, Zainah Ibrahim, Shazim Ali Memon, Md. Toasin Hossain Aunkor, Muhammad Faisal Javed, Kashif Mehmood and Syed Mustafa Ali Shah
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Sardar Kashif Ur Rehman: Department of Civil Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
Zainah Ibrahim: Department of Civil Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
Shazim Ali Memon: Department of Civil Engineering, School of Engineering, Nazarbayev University, Astana 010000, Kazakhstan
Md. Toasin Hossain Aunkor: Department of Civil Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
Muhammad Faisal Javed: Department of Civil Engineering, COMSATS Institute of Information Technology, Abbottabad 22060, Pakistan
Kashif Mehmood: Department of Civil Engineering, COMSATS Institute of Information Technology, Abbottabad 22060, Pakistan
Syed Mustafa Ali Shah: Department of Civil Engineering, COMSATS Institute of Information Technology, Abbottabad 22060, Pakistan

Sustainability, 2018, vol. 10, issue 3, 1-21

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.

Keywords: graphene oxide; GO–cement composite; microstructure; rheological properties; bond strengthening; self-sensing (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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