High/Ultra-high Performance Graphene Oxide/Cement-based Composites with Large-scale, Ordered and Compact Flower-like Microstructures
LU Shenghua1, 2, SUN Li1, ZHANG Jia1, HU Haoyan1, LEI Ying1, HOU Yonggang1
1 College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology,Xi'an 710021; 2 National Demonstration Center for Experimental Light Chemistry Engineering Education (Shaanxi University of Science and Technology), Xi'an 710021;
Abstract: The high-and ultra-high-performance cement composites (HPC and UHPC) were prepared by doping graphene oxide (GO) and varying water-cement ratio. When water-cement ratio is 0.26 and GO dosage is 0.03% and 0.05%, the compressive and flexural strength of HPC were 125.6 MPa, 146.7 MPa and 15.6 MPa, 18.3 MPa, respectively. And while water-cement ratio is 0.18 and with 0.03% and 0.05% GO, the compressive and flexural strength were 168.6 MPa, 181.3 MPa and 26.9 MPa and 29.4 MPa, respectively. The penetration resistance, freeze-thaw resistance and carbonation resistance of the cement composites got remarkably improved by properly adding GO. The regular-shaped crystals of cement hydration products which gathered to form ordered and compact microstructures were observed in SEM microscopic morphology. XRD results indicated that the regular-shaped hydration crystals were constructed by complexing and hybridizing.of cement hydration crystals.
1 Mo Zongyun, Gao Xiaojian. Research progress on the durability of metakaolin concrete[J].Mater Rev:Rev,2017,31(8):115(in Chinese). 莫宗云,高小建.偏高岭土改性混凝土的耐久性研究进展[J].材料导报:综述篇,2017,31(8):115. 2 Liu Junliang,Xu Jinyu,Ren Weibo,et al.Dynamic mechanical pro-perties of early-strength fiber reinforced concrete at different ages[J].Mater Rev:Res,2016, 30(12):157(in Chinese). 刘俊良,许金余,任韦波,等.纤维早强混凝土不同龄期的动态力学性能[J].材料导报:研究篇,2016,30(12):157. 3 Ngo T T,Park J K,Pyo S,et al.Shear resistance of ultra-high-performance fiber-reinforced concrete [J]. Costruction Building Mater,2017,151:246. 4 Lian Huizhen. Reconsidered on the high performance concrete [J]. China Concrete, 2010(12):8(in Chinese). 廉慧珍.对高性能混凝土的再反思[J]. 混凝土世界,2010(12):8. 5 Wang Dehui, Shi Caijun, Wu Linmei. Research and applications of ultra-high performance concrete (UHPC) in China[J]. Bull Chin Ceram Soc, 2016,35(1):142(in Chinese). 王德辉,史才军,吴林妹. 超高性能混凝土在中国的研究和应用[J]. 硅酸盐通报,2016,35(1):142. 6 Chen Baochun, Ji Tao, Huang Qingwei, et al. Review of research on ultra-high performance concrete[J]. J Achitecture Civil Eng,2014,31(3):1(in Chinese). 陈宝春,季韬,黄卿维,等.超高性能混凝土研究综述[J].建筑科学与工程学报,2014,31(3):1. 7 Yu R, Song Q L,Wang X P. Sustainable development of ultra-high performance fibre reinforced concrete (UHPFRC): Towards to an optimized concrete matrix and efficient fibre application[J].J Cleaner Production,2017,162:220. 8 Xu Libin,Dong Yi,Chen Shangwei.Research on the m ixture ratio design of ultra-high perform ance concrete[J].Concrete,2015(1):72(in Chinese). 徐立斌,董艺,陈尚伟. 超高性能混凝土的配合比设计研究[J].混凝土,2015(1):72. 9 Wan Chaojun, Yin Yaliu, Wang Xiaoqian, et al. Preparation of ultra-high performance concrete[J]. Bull Chin Ceram Soc, 2015,34(12):3676(in Chinese). 万朝均,尹亚柳,王小茜, 等. 超高性能混凝土的制备[J].硅酸盐通报,2015,34(12):3676. 10 Qin Xiaochuan,Meng Shaoping. Relationship between mesoscopic freeze-thaw damage and compressive strength of high-strength concrete materials[J]. Mater Rev: Res, 2017,31(1):117(in Chinese). 秦晓川,孟少平.高强混凝土材料细观冻融损伤与抗压强度的关系[J].材料导报:研究篇,2017,31(1):117. 11 Biskri Y, Achoura D, Chelghoum N, et al. Mechanical and durabi-lity characteristics of high performance concrete containing steel slag and crystalized slag as aggregates[J].Construction Building Mater, 2017, 150:167. 12 Nilforoush R,Nilsson M.Experimental evaluation of tensile beha-viour of single cast-in-place anchor bolts in plain and steel fibre-reinforced normal-and high-strength concrete[J].Eng Structures, 2017,147:195. 13 Shin H O, Min K H, Mitchell D. Confinement of ultra-high-performance fiber reinforced concrete columns[J].Compos Structures,2017,176:124. 14 Wijayawardane I S K.Flexural behaviour of glass fibre-reinforced polymer and ultra-high-strength fibre-reinforced concrete composite beams subjected to elevated temperature[J].Adv Structure Eng, 2017, 20(9):1357. 15 Luccioni B, Isla F, Codina R, et al. Effect of steel fibers on static and blast response of high strength concrete[J].Int J Impact Eng, 2017,107:23. 16 Atmaca N,Abbas M L.Effects of nano-silica on the gas permeability, durability and mechanical properties of high-strength lightweight concrete[J].Construction Building Mater,2017, 147:17. 17 Huang Zhengyu, Zu Tianyu. Influence of nano-CaCO3 on ultra high performance concrete [J]. Bull Chin Ceram Soc, 2013, 32(6):1104(in Chinese). 黄政宇,祖天钰. 纳米CaCO3对超高性能混凝土性能影响的研究[J].硅酸盐通报,2013,32(6):1104. 18 Lv S H,Ma Y J, Qiu C C, et al. Effect of graphene oxide nano-sheets of microstructure and mechanical properties of cement compo-sites [J]. Construction Building Mater, 2013, 49:121. 19 Lv S H, Liu J J, Sun T, et al. Effect of GO nanosheets on shapes of cement hydration crystals and their formation process[J].Construction Building Mater, 2014, 64:231. 20 Lv S H, Deng L J, Yang W Q, et al. Fabrication of polycarboxylate/graphene oxide nanosheet composites using copolymerization, for reinforcing and toughening cement composites[J].Cem Concr Compos, 2016,66:1.
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2017, Vol. 31 
