混凝土暴露试验的稳定时长与试验分析方法

doi:10.11896/cldb.22020091

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Abstract The field test of concrete is usually used to study the chloride diffusion coefficient of concrete, which requires an appropriate analytical technique and the stable exposure duration. To this end, the instantaneous diffusion theory and the average one were studied systematically, while parameters in the diffusion equation were specified with different time dependent property. It was proven that the analytical solution of instantaneous diffusion equation for diffusion process and concentration distribution of chloride ion in concrete was equivalent to that of average one. Then, the random number was employed to introduced sampling error in exposure test of concrete, while the Monte Carlo simulation was adopted to analyze the influence of exposure duration, sampling error and regression technique on the results of chloride diffusion coefficient of concrete under chloride environment. It was revealed that the results from the instantaneous diffusion solution was easily affected by the initial value of parameter in iteration when it was used for regression analysis of field test data of concrete, leading to instability of initial diffusion coefficient. Ho-wever, the average diffusion solution is more stable for regression analysis of chloride diffusion coefficient by using field test data of concrete exposed to chloride. Furthermore, the stable exposure duration was determined for concrete field test with different values under different sampling errors. Finally, the proposed technique of regression analysis and the stable exposure duration was validated as essential tools for treatment of field test data of concrete in chloride environment in two examples from engineering practice.

Key words： concrete chloride ion diffusion equation initial diffusion coefficient stable exposure duration

Published: 25 January 2024 Online: 2024-01-26

CLC number:

TU528

Fund:National Natural Science Foundation of China (51738004, 51678165, 52002041).

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	Articles by authors
	YANG Lufeng
	LONG Fengbo
	SUN Jiwei
	CHEN Junwu

Cite this article:

YANG Lufeng,LONG Fengbo,SUN Jiwei, et al. Stable Exposure Duration of Field Test of Concrete and Its Analytical Technique[J]. Materials Reports, 2024, 38(2): 22020091-7.

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http://www.mater-rep.com/EN/10.11896/cldb.22020091 OR http://www.mater-rep.com/EN/Y2024/V38/I2/22020091

1 Wang Y, Fu K. Construction and Building Materials, 2019, 223(1), 595.
2 Tang L, Nilsson L. Nordic Concrete Research Publication, 1992, 2(11), 162.
3 Tang L, Nilsson L O. ACI Materials Journal, 1992, 89(1), 40.
4 Al-Alaily H S, Hassan A A A. Journal of Building Engineering, 2016, 7(6), 159.
5 Kim J, Mccarter W J, Suryanto B, et al. Cement and Concrete Compo-sites, 2016, 72(6), 133.
6 Zhang J, Zhao J, Zhang Y, et al. Construction and Building Materials, 2018, 167, 225.
7 Chalee W, Jaturapitakkul C, Chindaprasirt P. Marine Structures, 2009, 22(3), 341.
8 Meira G R, Andrade C, Alonso C, et al. Cement and Concrete Compo-sites, 2010, 32(6), 427.
9 Stanish K, Thomas M. Cement and Concrete Research, 2003, 33(1), 55.
10 Mangat P S, Molloy B T. Materials and Structures, 1994, 27(6), 338.
11 Petcherdchoo A. Construction and Building Materials, 2013, 38(8), 497.
12 Wu L, Li W, Yu X. Construction and Building Materials, 2017, 152(15), 406.
13 Maage M, Helland S, Carlsen J E. In:1st RILEM Workshop on Chloride Penetration into Concrete. France, 1995, pp. 398.
14 Philip V D H, De Keersmaecker M, Elia A, et al. Cement and Concrete Composites, 2017, 80(3), 210.
15 Tang L, Gulikers J. Cement and Concrete Research, 2007, 37(4), 589.
16 Gjrv O E. Arablan Journal for Science and Engineering, 2011, 36(2), 151.
17 Song L, Sun W, Gao J. Journal of Wuhan University of Technology(Materials Science Edition), 2013, 28(2), 314.
18 Attari A, Mcnally C, Richardson M G. Construction and Building Mate-rials, 2016, 111(2), 488.
19 Audenaert K, Yuan Q, Schutter G D. Construction and Building Materials, 2010, 24(3), 396.
20 Andrade C, Castellote M, D’andrea R. Journal of Nuclear Materials, 2011, 412(1), 209.
21 Zhang J Z, Zhuang H X, Huang J, et al. Journal of Natural Disasters, 2014, 23(6), 263(in Chinese).
张俊芝, 庄华夏, 黄俊, 等. 自然灾害学报, 2014, 23(6), 263.
22 Jin W L, Xue W, Chen J. Journal of Building Structures, 2011, 32(12), 86(in Chinese).
金伟良, 薛文, 陈驹. 建筑结构学报, 2011, 32(12), 86.
23 Lu Y T, Yu H F, Ma H X, et al. Journal of Architecture and Civil Engineering, 2011, 28(4), 86(in Chinese).
卢一亭, 余红发, 马好霞, 等. 建筑科学与工程学报, 2011, 28(4), 86.
24 Yang L F, Zhou M, Chen Z. China Civil Engineering Journal, 2014, 47(10), 70(in Chinese).
杨绿峰, 周明, 陈正. 土木工程学报, 2014, 47(10), 70.
25 Collepardi M, Marcialis A, Turriziani R. Journal of the American Ceramic Society, 1972, 55(10), 534.
26 Zhang Y, Zhou X, Zhao J, et al. Construction and Building Materials, 2019, 205(2), 332.
27 Mohammed T U, Hamada H, Yamaji T. Journal of Advanced Concrete Technology, 2004, 1(1), 63.
28 Climent M A, Vera G D, Lopez J F. Cement and Concrete Research, 2002, 32(7), 1113.
29 Yang L F, Hu C Y, Chen Z, et al. Journal of Building Materials, 2013, 16(2), 210(in Chinese).
杨绿峰, 胡春燕, 陈正, 等. 建筑材料学报, 2013, 16(2), 210.
30 Cai R, Hu Y, Yu M, et al. Construction and Building Materials, 2020, 262(10), 120566.
31 Chi Q X, Si X C. Chinese Journal of Sensors and Actuators, 2006, 19(6), 2625(in Chinese).
池庆玺, 司锡才. 传感技术学报, 2006, 19(6), 2625.
32 BS 1881-124:2015. Testing concrete-part 124:methods for analysis of hardened concrete, British Standards Institution, London, 2015.
33 BS 6337-4:1984. General methods of chemical analysis- part 4:method for determination of chloride ions by potentiometry, British Standards Institution, London, 1984.
34 Safehian M, Ramezanianpour A A. Computers and Concrete, 2015, 15(4), 589.