石墨烯及氧化石墨烯对水泥基材料水化过程及强度的影响

doi:10.11896/cldb.21060032

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Abstract In this work, peeling graphene (pG) prepared by intercalation stripping method and Hummers graphene oxide (hGO) prepared by Hummers method were prepared into nano sheet dispersion by ultrasonic dispersion method. The effects of two kinds of dispersions on setting time,microstructure of hydration products, crystalline phase and strength of cement-based materials were studied. The results show that the mixing of two nano dispersions can shorten the setting time reduce the pores in the cement paste, and densify the structure, and some CH crystal present a multi-faceted aggregation structure state that diverges from a single point. The addition of pG and hGO can accelerate the hydration reaction of cement, do not change the types of hydration products, and can improve the mechanical properties of cement-based materials, especially the 3 d flexural strength. The strength of cement sample with pG is slightly higher than that of hGO, which provides a broad prospect for the application of low-cost, size-controllable and mass-produced graphene products in cement-based materials.

Key words： graphene graphene oxide cement based materials hydration process strength

Published: Online: 2023-01-03

CLC number:

TU528

Fund:National Natural Science Foundation of China (51568009), Guangxi Science and Technology Development Program(GSTDP1114016-6), and Innovation Project of Guangxi Graduate Education(GKYC202009).

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	Articles by authors
	DONG Jianmiao
	ZOU Mingxuan
	ZHOU Ming
	YU Lang
	CAO Jiawei
	ZHUANG Jiaqiao
	WANG Liuyang
	WANG Huimin

Cite this article:

DONG Jianmiao,ZOU Mingxuan,ZHOU Ming, et al. Effect of Graphene and Graphene Oxide on Hydration Process and Strength of Cement-based Materials[J]. Materials Reports, 2022, 36(24): 21060032-6.

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http://www.mater-rep.com/EN/10.11896/cldb.21060032 OR http://www.mater-rep.com/EN/Y2022/V36/I24/21060032

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