盐湖卤水侵蚀喷射混凝土衬砌损伤演化

doi:10.11896/cldb.18090171

Abstract
Figure/Table
References
Related Citation (3)

Download:

Full Text ( PDF ) (5343KB)
Export: BibTeX | EndNote (RIS)

Abstract Salt lake is widely distributed in Western China. The high concentrations of chlorine salt, sulfate, and magnesium salt in the soil and underground water are the major reasons leading to the damage evolution of lining shotcrete and reliability of lining structure decreased. In order to research the damage appearing and evolution laws of shotcrete lining in brine corrosion environment, by using dry-wet cycle (D & W) method for simulating the corrosion mode of tunnel lining, the shotcrete durability experiment was carried out in 5% Na₂SO₄+5% MgSO₄+3.5% NaCl solution. Mineral composition and microscope of corrosion products, and ions content were tested by using XRD, TG-DSC, SEM & EDX and electrochemical method, respectively. Acid-soluble sulfate content obviously increased with the increase of D & W cycle, and water-soluble chloride and sodium content slowly increased. However, calcium content and concrete pH value decreased. The corrosion process of brine-exposed shotcrete includes three stages of brucite, gypsum and ettringite formation, C-S-H decomposition and thaumasite formation, and M-S-H formation. During the three stages, crystal salts accumulated in micropores and microcracks which accelerated the deterioration speed. Finally, as combined action of expansion stress and crystallization pressure which come from thaumasite, brucite, gypsum, ettringite and crystallized salt, web cracks are formed in shotcrete and surface, which caused damage evolution quickly of shotcrete lining.

Key words： salt-lake-brine attack shotcrete damage evolution thaumasite ion diffusion

Published: 29 August 2019

CLC number:

TU528.44

About author:: Jiabin Wangreceived his Ph.D. degree in structure engineering from Xi’an University of Architecture and Technology (XAUAT) in 2017. He is currently a lecturer in Xi’an Technological University (XATU) and participates in the durability of shotcrete (sprayed concrete) and recycled aggregate concrete. In recent years, more than 20 papers have been published at home and abroad.

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	WANG Jiabin
	NIU Ditao

Cite this article:

WANG Jiabin,NIU Ditao. Damage Evolution of Shotcrete Lining Under Salt-lake-brine Attack[J]. Materials Reports, 2019, 33(20): 3426-3435.

URL:

http://www.mater-rep.com/EN/10.11896/cldb.18090171 OR http://www.mater-rep.com/EN/Y2019/V33/I20/3426

Thomas A. Sprayed concrete lined tunnel, Taylor & Francis, New York, 2012.2 Hemphill G B. Practical tunnel construction, Jone Wiley & Sons, Hoboken, 2013.3 Wang J B, Niu D T, Ding S, et al. Construction and Building Materials, 2015,78, 203.4 Leung C K Y, Lai R, Lee A Y F. Cement and Concrete Research, 2005, 35, 788.5 Tomas F, Garshol K F, Tomisawa N. Tunneling and Underground Space Technology, 2001,16, 2956 Du G P, Liu X R, Zhu Y H, et al.Chinese Journal of Rock Mechanics and Engineering, 2008, 27(7), 1448(in Chinese).杜国平, 刘新荣, 祝云华, 等. 岩石力学与工程学报, 2008, 27(7), 1448.7 Song Z P, Liu J, Wu H T, et al. Journal of Xi’an University of Architecture and Technology (Natural Science Edition), 2013, 45(3), 348 (in Chinese).宋战平, 刘京, 吴焕通, 等. 西安建筑科技大学学报(自然科学版), 2013, 45(3), 348.8 Valipour M, Pargar F, Shekarchi M, et al. Construction & Building Materials, 2013, 46, 63.9 Jin W L, Zhang Y, Lu Z Y. Journal of the Chinese Ceramic Society, 2008, 36(10), 1362(in Chinese).金伟良, 张奕, 卢振勇. 硅酸盐学报, 2008, 36(10), 1362.10 Sun G, Zhang Y, Sun W, et al. Construction & Building Materials, 2011, 25(10), 3820.11 Liu Z Q, Hou L, Deng D H, et al. Journal of the Chinese Ceramic Society, 2017, 45(11), 1621 (in Chinese).刘赞群, 候乐, 邓德华,等. 硅酸盐学报, 2017, 45(11), 1621.12 Rahman M M, Bassuoni M T. Construction & Building Materials, 2014, 73, 652.13 Jin Z Q, Sun W, Zhang Y S, et al. Journal of the Chinese Ceramic Society, 2006, 34(5), 630(in Chinese).金祖权, 孙伟, 张云升,等. 硅酸盐学报, 2006, 34(5), 630.14 Gao J, Yu Z, Song L, et al. Construction & Building Materials, 2013, 39, 33.15 Wu K, Shi H S, Xu L L, et al. Journal of Building Materials, 2016, 19(3), 442(in Chinese).吴凯, 施惠生, 徐玲琳,等. 建筑材料学报, 2016, 19(3), 442.16 Liu Z Q, Hu W L, Deng D H, et al. Journal of the Chinese Ceramic So-ciety, 2018, 46(5), 663 (in Chinese).刘赞群, 胡文龙, 邓德华, 等. 硅酸盐学报, 2018, 46(5), 663.17 Tan Y, Yu H, Ma H, et al. Construction & Building Materials, 2017, 141, 453.18 Alnahhal M F, Alengaram U J, Jumaat M Z, et al. Construction & Buil-ding Materials, 2018, 163, 482.19 Wang J B, Niu D T, Zhang Y L. Materials & Structures, 2016, 49(4), 1469.20 Wang J B, Niu D T. China Civil Engineering Journal, 2018,51(2), 95 (in Chinese).王家滨, 牛荻涛. 土木工程学报, 2018, 51(2), 95.21 Wang Jiabin, Niu Ditao, Zhang Yongli. Journal of Wuhan University of Technology (Materials Science Edition), 2016, 31(6), 1329.22 Niu D T, Wang J B, Ma R. China Journal of Highway and Transport, 2016, 29(2), 82 (in Chinese).牛荻涛, 王家滨, 马蕊. 中国公路学报, 2016, 29(2), 82.23 Hu X P, Sun G S, Zhang C Z, et al. Journal of Xi’an University of Architecture and Technology (Natural Science Edition), 2017, 49(4), 492(in Chinese).胡晓鹏, 孙广帅, 张成中,等. 西安建筑科技大学学报(自然科学版), 2017, 49(4), 492.24 Gao R D, Zhao S B, Li Q B, et al. China Civil Engineering Journal, 2010(2), 48 (in Chinese).高润东, 赵顺波, 李庆斌,等. 土木工程学报, 2010(2), 48.25 Yu H F. Study on high performance concrete in sale lake: Durability, mechanism and service life prediction. Ph.D. Thesis, Southeast University, China, 2004(in Chinese).余红发. 盐湖地区高性能混凝土的耐久性、机理与使用寿命预测方法.博士学位论文, 东南大学, 2004.26 Paglia C, Wombacher F, Böhni H. Cement & Concrete Research, 2003, 31(6), 913.27 Mehta P K. Concrete: Microstructure, properties, and materials (4th edition), McGraw-Hill Education, New York, 2014.28 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, 201629 Deng D H, Xiao J, Yuan Q, et al. Journal of Building Materials, 2005, 8(4), 400 (in Chinese).邓德华, 肖佳, 元强,等. 建筑材料学报, 2005, 8(4), 400.30 Bulatovic＇ V, Melešev M, Radeka M, et al. Construction & Building Materials, 2017, 152, 614.31 Bernard E, Lothenbach B, Rentsch D, et al. Physics & Chemistry of the Earth Parts A/B/C, 2017, 99, 142.32 Yang N R, Yue W H. Handbook of inorganic non-metallic materials maps, Wuhan University of Technology Press,China, 2000(in Chinese).杨南如, 岳文海. 无机非金属材料图谱手册, 武汉工业大学出版社, 2000.33 Lorente S, Yssorche C M P, Auger J. Cement & Concrete Composites, 2011, 33(7), 735.34 Liu J P, Liu Y J, Shi L, et al. Journal of Building Materials, 2016, 19(6), 993 (in Chinese).刘加平, 刘玉静, 石亮, 等. 建筑材料学报, 2016, 19(6), 993.35 Yu H F, Sun W, Wang J C, et al. Journal of the Chinese Ceramic Society, 2003, 31(5), 434 (in Chinese).余红发, 孙伟, 王甲春,等. 硅酸盐学报, 2003, 31(5), 434.36 Maes M, Belie N D. Construction & Building Materials, 2017, 155, 630.