Influence of Graphene Oxide on Rheological Properties of Fresh Cement Paste

Abstract

Abstract: With the continuous development of nano-materials and technology, more and more attention has been paid to the modification of cement-based materials by graphene oxide. In this context, the influence of graphene oxide on the rheological properties of fresh cement paste was studied by Anton Paar Rheolab QC rheometer, and the static yield stress, dynamic yield stress, viscosity coefficient and thixotropic ring area of the paste were measured. The results show that under the same content of graphene oxide, the longer the paste resting time is, the higher the static yield stress is. With the increase ofthe graphene oxide content, the paste microstructure establishment parameters, dynamic yield stress, and viscosity coefficient first increase and then decrease, while the thixotropic loop area shows an opposite changing trend.

Key words: graphene oxide, cement paste, static rheological property, dynamic rheological property, thixotropy

CLC Number:

TU528

JIAO Min. Influence of Graphene Oxide on Rheological Properties of Fresh Cement Paste[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(7): 2159-2164.

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