粉煤灰对水泥基材料水化过程电阻率的影响研究

doi:10.11896/cldb.17110298

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Abstract The evolution of electrical resistivity, concentration of ions in the pore solution and the pore structure of Portland cement pastes with fly ash in mass fraction of 0%, 20% and 40%, respectively during 72 h were investigated. The results show that the curves of electrical resistivity of cement paste blended with different contents of fly ash will intersect with each other. Before the intersections of the curves of electrical resistivity, the electrical resistivity increases with the increase of fly ash content, while after the intersections, the electrical resistivity is lower when the fly ash content is higher. The incorporation of fly ash leads to the decrease of pH value of the pore solution, the decrease of the ion concentration in the liquid phase and the increase of the total porosity. The ion concentration of the pore solution in the paste with higher content of fly ash is lower than that in the paste with lower content of fly ash, while the porosity is higher, the coupling effect results in the intersection of the curves of electrical resistivity.

Key words： Portland cement fly ash electrical resistivity ion concentration pore structure

Published: 28 April 2019

CLC number:

TQ172

Fund:This work was financially supported by the National Natural Science Foundation Youth Fund of China (51608402), the Natural Science Fund of Hubei Pro-vince (2015CFB353), Open Research Fund of Yangtze River Scientific Research Institute(CKWV2014211/KY).

About author:: Yishun Liao, received his Ph.D.degree in structural engineering from Huazhong University of Science and Technology in 2013.

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	LIAO Yishun
	SHEN Qing
	XU Pengfei
	LIAO Guosheng
	ZHONG Xun

Cite this article:

LIAO Yishun,SHEN Qing,XU Pengfei, et al. Effect of Fly Ash on the Electrical Resistivity of Cement-based Materials During the Hydration Process[J]. Materials Reports, 2019, 33(8): 1335-1339.

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http://www.mater-rep.com/EN/10.11896/cldb.17110298 OR http://www.mater-rep.com/EN/Y2019/V33/I8/1335

1 Yan P Y, Zhang Z Q. Journal of the Chinese Ceramic Society, 2017, 45(8), 1066(in Chinese).
阎培渝, 张增起.硅酸盐学报, 2017, 45(8), 1066.
2 Wei X, Li Z. Materials and Structures, 2005, 38, 411.
3 Zuo Y B, Wei X S. Journal of Chongqing University, 2015, 38(4), 45(in Chinese).
左义兵, 魏小胜.重庆大学学报, 2015, 38(4), 45.
4 Shen X D, Yao Y. Research Progress of Cementitious Materials, Higher Education Press, China, 2010(in Chinese).
沈晓冬, 姚燕.水泥材料研究进展, 高等教育出版社, 2012.
5 Lothenbach B, Winnefeld F,Alder C, et al. Cement and Concrete Research, 2007, 37(4), 483.
6 Rasanen V, Penttala V. Cement and Concrete Research, 2004, 34(5), 813.
7 Zhou J K, Pan Y, Chen X D. Materials Review A:Review Papers, 2013, 27(4), 72(in Chinese).
周继凯, 潘杨, 陈徐东.材料导报:综述篇, 2013, 27(4), 72.
8 Yu Z Q, Ma J, Ye G, et al. Construction and Building Materials, 2017, 144, 493.
9 Shi H S, Fang Z F. Journal of the Chinese Ceramic Society, 2004, 32(1), 95(in Chinese).
施惠生, 方泽锋.硅酸盐学报, 2004, 32(1), 95.
10 Li X, Yan P Y. Journal of Building Materials, 2010, 13(6), 787(in Chinese).
李响, 阎培渝. 建筑材料学报, 2010, 13(6), 787.
11 Fu Y Q, Xiao L Z, Shi W C. Journal of Wuhan Institute of Technology, 2016, 38(2), 152(in Chinese).
付雅琴, 肖莲珍, 史文冲.武汉工程大学学报, 2016, 38(2), 152.
12 Schöler A, Lothenbach B, Winnefeld F, et al. Cement & Concrete Composites, 2015, 55(55), 374.
13 Hu H M, Ma B G. Concrete Mineral Admixture, China Electric Power Press, China, 2016(in Chinese).
胡红梅, 马保国.混凝土矿物掺合料, 中国电力出版社, 2016.
14 Liu Z Y, Zhang Y S, Sun G W, et al. Journal of Civil Architectural and Environmental Engineering, 2012, 34(5), 148(in Chinese).
刘志勇, 张云升, 孙国文, 等.土木建筑与环境工程, 2012, 34(5), 148.
15 Feng S X, Wang P M. Journal of Building Materials, 2017, 20(3), 321(in Chinese).
丰曙霞, 王培铭.建筑材料学报, 2017, 20(3), 321.