用Hummers法对石墨进行氧化后再用超声波进行分散制备纳米氧化石墨烯(GO)分散液.研究GO对掺有聚羧酸系减水剂(PCs)的水泥净浆流动度、粘度、凝结时间、石泥石孔结构和水泥砂石的耐折强度、抗压强度的影响.研究结果表明,纳米氧化石墨烯掺量为15mg/(100g水泥)时,使净浆流动度和凝结时间稍有降低,所得石泥石的中大孔隙率减少,结构致密,硬化水泥砂浆的耐折强度和抗压强度显著提高.硬化水泥石的XRD和SEM测试结果表明,纳米氧化石墨烯片层对水泥水化晶体产物的形成有模板效应,能够促使水泥石形成微小、形状统一的晶体结构,研究纳米氧化石墨烯增强增韧混凝土对于构建高性能、长寿命混凝土具有重要的意义.
参考文献
| [1] | 高柯,孟云芳.高性能混凝土的研究与发展[J].中国建材科技,2010(03):30-32. |
| [2] | Kim Van Tittelboom;Nele De Belie;Frank Lehmann;Christian U. Grosse .Acoustic emission analysis for the quantification of autonomous crack healing in concrete[J].Construction and Building Materials,2012(1):333-341. |
| [3] | 杨恒阳,周海雷,侍克斌,吴福飞.锂渣、粉煤灰高性能混凝土早期抗裂性能试验研究[J].混凝土,2012(01):65-67. |
| [4] | Gao Yuxin;Wu Yejiao;Wang Mingyue.Research and application of ultra-high strength high performance concrete in China[J].Ready-Mixed Concrete,2009(12):29-31. |
| [5] | 赵远,黄伟九.石墨烯及其复合材料的制备及性能研究进展[J].重庆理工大学学报：自然科学,2011(07):64-70. |
| [6] | Bangi M R;Horiguchi T .Pore pressure development in hybrid fiber-reinforced high strength concrete at elevated temperatures[J].Cement and Concrete Research,2011,41(11):1150-1156. |
| [7] | 苏慈,田晓霞,曾田胜.C60高性能钢纤维混凝土制备和应用[J].混凝土,2009(11):120-122. |
| [8] | Kay Wille;Antoine E. Naaman;Sherif El-Tawil;Gustavo J. Parra-Montesinos .Ultra-high performance concrete and fiber reinforced concrete: achieving strength and ductility without heat curing[J].Materials and structures,2012(3):309-324. |
| [9] | Wille K;Loh K J .Nanoengineering ultra-high-performance concrete with multiwalled carbon nanotubes[J].Transportation Research Record,2010,2142:119-126. |
| [10] | 黄毅,陈永胜.石墨烯的功能化及其相关应用[J].中国科学B辑,2009(09):887-896. |
| [11] | Potts, J.R.;Dreyer, D.R.;Bielawski, C.W.;Ruoff, R.S. .Graphene-based polymer nanocomposites[J].Polymer: The International Journal for the Science and Technology of Polymers,2011(1):5-25. |
| [12] | Tapas Kuila;Saswata Bose;Chang Eui Hong .Preparation of functionalized graphene/linear low density polyethylene composites by a solution mixing method[J].Carbon: An International Journal Sponsored by the American Carbon Society,2011(3):1033-1037. |
| [13] | 姜丽丽,鲁雄.石墨烯制备方法及研究进展[J].功能材料,2012(23):3185-3189,3193. |
| [14] | 孙宇峰,刘少波,李会华,王萍,孟凡利,陈翌庆.氧化石墨烯的制备及其对NH3的敏感特性研究[J].功能材料,2012(06):712-714. |
| [15] | 江莞,范宇驰,刘霞,王连军.机械剥离法制备石墨烯及其在石墨烯/陶瓷复合材料制备中的应用[J].中国材料进展,2011(01):12-20. |
| [16] | Yanwu Zhu;Shanthi Murali;Weiwei Cai;Xuesong Li;Ji Won Suk;Jeffrey R. Potts;Rodney S. Ruoff .Graphene and Graphene Oxide: Synthesis, Properties, and Applications[J].Advanced Materials,2010(35):3906-3924. |
| [17] | 宋峰,于音.什么是石墨烯--2010年诺贝尔物理学奖介绍[J].大学物理,2011(01):7-12. |
| [18] | Hummers W;Offeman R .Preparation of graphitic oxide[J].Journal of the American Chemical Society,1958,80(06):1339-1348. |
| [19] | Kaye B H;Xu Xinyang;Kang Yan.Random walk through fractal dimensions[M].沈阳:东北大学出版社,1995 |
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