利用纳米石墨、炭黑等导电掺料制作的水泥基复合材料的压阻特性可进行交通违规监测.本文实验研究了由石墨、炭黑、碳纤维任意两导电掺料组成的复合导电相制作的高导电长方柱水泥基复合材料,在标准车载大小、不同荷载循环周期作用下的压阻特性.实验表明一定车载力作用下,所选配比情况,含石墨和碳纤维混合掺料的水泥基复合材料的压阻特性最好,含石墨和炭黑复合导电相的次之,含炭黑和碳纤维复合导电相压阻特性不明显.
Conductive cement-based composites with nano-graphite, carbon black have good conductivity and piezoresistive properties, and it can use to achieve traffic monitoring. In this paper, the piezoresistive properties of high conductivity cuboid cement-based composites with any two-phase composed of graphite, carbon black, carbon fiber, under the standard vehicle force with different load cycle are studied. For the selected cases, experimental results show that cement-based composite mixed with graphite and carbon fiber under a certain ratio and vehicle force has the best piezoresistive properties, and compound conductive phase mixed with graphite and carbon black is better than that mixed with carbon black and carbon fiber.
参考文献
| [1] | Chen P W;Chung D D L.Carbon fiber reinforced concrete for smart structure capable of non-destructive flaw detection[J].Smart Materials and Structures,1993(02):22-33. |
| [2] | Fu X L;Chung D D L .Self monitoring of fatigue damage in carbon fiber reinforced cement[J].Cement and Concrete Research,1996,26(01):15-20. |
| [3] | Z.Q.Shi;D.D.L.Chung .Carbon fiber-reinforced concrete for traffic monitoring and weighing in motion[J].Cement and Concrete Research,1999(3):435-439. |
| [4] | Mingqing Sun;Qingping Liu .A study of piezoelectric properties of carbon fiber reinforced concrete and plain cement paste during dynamic loading[J].Cement and Concrete Research,2000(10):1593-1595. |
| [5] | 龙曦,孙明清,李卓球,宋显辉.纳米炭黑水泥基复合材料的压敏性研究[J].武汉理工大学学报,2008(03):57-59. |
| [6] | Han B;Ou JP .Embedded piezoresistive cement-based stress/strain sensor[J].Sensors and Actuators, A. Physical,2007(2):294-298. |
| [7] | 王玉林,赵晓华,杜建华,陈佺.纳米碳黑水泥基复合材料压敏性及机理分析[J].硅酸盐通报,2009(01):189-193. |
| [8] | 简华丽 .基于碳纤维混凝土（粗骨料）压敏性的车重监测系统的研究[D].汕头大学,2004. |
| [9] | Han BG;Han BZ;Ou JP .Experimental study on use of nickel powder-filled Portland cement-based composite for fabrication of piezoresistive sensors with high sensitivity[J].Sensors and Actuators, A. Physical,2009(1):51-55. |
| [10] | Zhu SR;Chung DDL .Theory of piezoresistivity for strain sensing in carbon fiber reinforced cement under flexure[J].Journal of Materials Science,2007(15):6222-6233. |
| [11] | 范晓明 .石墨水泥基复合材料的导电及压敏性研究[J].武汉理工大学学报,2009,31(12):13-14. |
| [12] | 姚武,陈兵,吴科如.碳纤维水泥基材料的机敏特性研究[J].复合材料学报,2002(02):49-53. |
| [13] | JTG B01-2003.公路工程技术标准[S].,2003. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%