Effect of Graphene and Graphene Oxide on Hydration Process and Strength of Cement-based Materials
DONG Jianmiao1, ZOU Mingxuan1, ZHOU Ming2,3,*, YU Lang1, CAO Jiawei1, ZHUANG Jiaqiao1, WANG Liuyang1, WANG Huimin1
1 School of Civil Engineering and Architecture, Guangxi University of Science and Technology, Liuzhou 545006, Guangxi, China 2 School of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, Liuzhou 545006, Guangxi, China 3 Guangxi Qinglu New Material Technology Co., Ltd., Liuzhou 545006, Guangxi, China
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.
作者简介: 董健苗,广西科技大学土木建筑工程学院教授、硕士研究生导师。1994年武汉工业大学无机非金属材料专业本科毕业,2001年武汉理工大学材料学专业硕士毕业后到广西科技大学工作至今。2016年1月至9月在英国UCL大学访学。目前主要从事高性能水泥混凝土等方面的研究工作。发表论文40余篇,包括Cement and Concrete Research、Journal of Wuhan University of Technology-Materials Science Edition、《硅酸盐学报》《建筑材料学报》等。 周铭,研究员,清华大学摩擦学国家重点实验室博士,广西科技大学机械与汽车工程学院教授,广西清鹿新材料科技有限责任公司首席科学家,硕士研究生导师。工信部人才交流中心特聘讲师,广西壮族自治区首批“八桂青年学者”。目前从事新材料的机械表/界面行为调控与应用研究工作。在Friction、Carbon、ACS Appl. Mater. & Interfaces、Adv. Mat. Interfaces等期刊发表20余篇SCI收录论文,SCI他引超过400次。
引用本文:
董健苗, 邹明璇, 周铭, 余浪, 曹嘉威, 庄佳桥, 王留阳, 王慧敏. 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[J]. 材料导报, 2022, 36(24): 21060032-6.
DONG Jianmiao, ZOU Mingxuan, ZHOU Ming, YU Lang, CAO Jiawei, ZHUANG Jiaqiao, WANG Liuyang, WANG Huimin. Effect of Graphene and Graphene Oxide on Hydration Process and Strength of Cement-based Materials. Materials Reports, 2022, 36(24): 21060032-6.
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2022, Vol. 36 
