Influence of Graphene Oxide on Interfacial Transition Zone of Mortar

Hongfang Sun, Zhili Ren, Li Ling, Shazim Ali Memon, Jie Ren, Bing Liu, Feng Xing

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

In this paper, the influence of graphene oxide (GO) on the microstructure of interfacial transition zone (ITZ) in cement mortar was investigated through image analysis (IA) of backscattered electron (BSE) micrographs. The results showed that the incorporation of GO significantly reduced the thickness of ITZ. The porosity in ITZ and bulk paste decreased due to the introduction of GO; meanwhile, the compressive strength of the mortar samples was improved. The addition of GO also narrowed the gap between the porosity of ITZ and bulk paste, and therefore, the entire microstructure of mortar became more homogenous. Based on the above results, the model to predict the compressive strength of mortar was modified for better precision. The improved prediction model indicated that the difference between the compressive strength of ITZ and bulk paste was reduced upon the refinement of ITZ by GO.

Original languageEnglish
Article number8919681
JournalJournal of Nanomaterials
Volume2020
DOIs
Publication statusPublished - 2020

ASJC Scopus subject areas

  • Materials Science(all)

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