Journal article
Reinforcing effects of graphene oxide on portland cement paste
K Gong, Z Pan, AH Korayem, L Qiu, D Li, F Collins, CM Wang, WH Duan
Journal of Materials in Civil Engineering | Published : 2015
Abstract
In this experimental study, the reinforcing effects of graphene oxide (GO) on portland cement paste are investigated. It is discovered that the introduction of 0.03% by weight GO sheets into the cement paste can increase the compressive strength and tensile strength of the cement composite by more than 40% due to the reduction of the pore structure of the cement paste. Moreover, the inclusion of the GO sheets enhances the degree of hydration of the cement paste. However, the workability of the GO-cement composite becomes somewhat reduced. The overall results indicate that GO could be a promising nanofillers for reinforcing the engineering properties of portland cement paste.
Grants
Funding Acknowledgements
The authors are grateful to the Australia Research Council for funding this study. The authors also wish to thank the Monash Centre for Electron Microscopy for the SEM images. The MIP tests were performed at the Department of Chemical Engineering at Monash University with the help of Ms. Kim Phu, and the TGA tests were conducted at the Department of Chemistry at Monash University with support from Mr. Finlay Shanks. The rest of the experiments were conducted at the Department of Civil Engineering at Monash University with the assistance of Mr. Long Goh. Their suggestions and advice are gratefully appreciated.