| MATERIALS AND SUSTAINABLE DEVELOPMENT: MATERIALSREMANUFACTURING AND WASTE RECYCLING |
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| Method for Enhancing Durability of Sticky Rice Mortar Under the Coupling Effect of Chloride Salt Erosion and Freeze-Thaw Cycle |
| LU Zhe1, WANG Sheliang1, WANG Shanwei1, YAO Wenjuan1, LIU Bo1, YAN Qiangqiang2
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1 College of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;
2 College of Civil Engineering, Xijing University, Xi'an 710123, China; |
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Abstract For improving the frost damage caused by salt efflorescence of traditional sticky rice mortar applied in the restoration and reinforcement of ancient masonries, a kind of modified sticky rice mortar composite material was obtained by adding 12.5%, 25% and 50% metakaolin and 1% flax fiber. Based on the mechanical strength, mass loss and relative dynamic elastic modulus of elasticity, the application performance of modified mortar was studied in detail. By means of infrared diffraction, X-ray powder diffraction and scanning electron microscopy, the perfor-mance evolution mechanism of modified mortar under normal curing, freeze-thaw aging and chloride corrosion freeze-thaw cycle coupling was studied. The results show that the strength, frost resistance and salt resistance of mortar can be significantly improved by mixing flax fiber and metakaolin. The hydrated gel C-S-H and C-A-H produced by metakaolin can solidify chloride ions to form Friedel salt to resist pore destruction and enhance the frost resistance of mortar in chloride environment. The durability index increases slightly with the addition of flax fiber, and increases first and then decreases with the addition of metakaolin. Among them, the reinforcement method of mixing sticky rice ash with 1% flax fiber and 25% metakaolin is the best.
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Published: 19 February 2021
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| Fund:This work was financially supported by the National Natural Science Foundation of China (51678480), Scientific Research Project of Key Laboratory of Shaanxi Education Department (17JS071) and Key Laboratory Project of Science and Technology Co-ordination and Innovation Project in Shaanxi Province(2014SZS04-P04). |
About author:: Zhe Lu received his B.E. degrees in June 2018 from Xi’an University of Science and Technology. He has been studying for a master’s degree in Xi’an University of Architecture and Technology since September 2018, and is mainly engaged in the research of seismic reinforcement and ancient building materials.
Sheliang Wang, is a professor and doctoral supervisor of Xi’an University of Architecture and Technology. He is mainly engaged in research on the restoration and seismic reinforcement of ancient buildings. He is currently the director of the Anti-seismic and disaster Prevention Branch of China Architecture Society,the vice-chairman of the China Infrastructure Optimization Research Institute Structural Engineering Specialized Committee, “Sanqin Talents” in Shaanxi Province, a review expert of the National Natural Science Foundation, the Post-doctoral Foundation and the Shaanxi Natural Science Foundation.He presided over one of the major research projects of the National Natural Science Foundation of China, one of the 973 pre-research projects,one of the 973 sub-projects, one of the key project of the National Natural Science Foundation of China and five projects on the National Natural Science Foundation of China. He has published more than 300 papers in academic journals at home and abroad,of which more than 180 have been included in SCI or EI. |
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Wang Shanwei, Wang Sheliang, Lu Zhe, et al.Construction and Building Materials, DOI:10.1016/j.conbuildmat.2020.118887.2 Chen S.Research on mechanism and prevention of frost damage of heri-tage buildings in cold region. Master's Thesis, Harbin Institute of Technology, China,2018(in Chinese).陈思. 寒地文物建筑冻害的机理与防治研究.硕士学位论文,哈尔滨工业大学,2018.3 Zhang Y, Jin P J, Wang S, et al.Relics and Museolgy,2019(4),106(in Chinese).张悦,金普军,王肃,等.文博,2019(4),106.4 Feilden B, Jokilehto J.Management Guidelines of World Cultural Heritage Sites ICCROM, Rome,1993.5 Rosário Veiga.Construction and Building Materials,2017,157,132.6 Moropoulou A, Bakolas A, Bisbikou K.Journal of Cultural Heritage,2000,1(1),45.7 Li Z H, Yan X J, Wang F, et al.China Science and Technology Information,2020(2),58(in Chinese).李昭辉,严新军,王飞,等.中国科技信息,2020(2),58.8 Hu Y, Wei G F, Fang S Q, et al.Journal of Civil and Environmental Engineering,2019,41(3),134(in Chinese).胡悦,魏国锋,方世强,等.土木与环境工程学报,2019,41(3),134.9 Guo L M, Yang L M, Zhang J M, et al.Chongqing Architecture,2018,17(11),48(in Chinese).郭丽明,阳令明,张俭民,等.重庆建筑,2018,17(11),48.10 Li Z G, Fang S Q, Wei G F, et al.Journal of Building Materials,2013,16(3),462(in Chinese).李祖光,方世强,魏国锋,等.建筑材料学报,2013,16(3),462.11 Cristiana Nunes, Zuzana Slížková.Construction and Building Materials,2016,114,896.12 Liu H Z, Zhao T J,Concrete,2015(10),9(in Chinese).刘洪珠,赵铁军.混凝土,2015(10),9.13 Eva Vejmelková, Martin Keppert, Zbyněk Keršner, et al.Construction and Building Materials,2012,31,22.14 Wei G F, Sun S, Wang C X, et al.Spectroscopy and Spectral Analysis,2013,33(7),1973(in Chinese).魏国锋,孙升,王成兴,等.光谱学与光谱分析,2013,33(7),1973.15 Shi L, Ma S H, Li W F, et al.Concrete,2013(11),101(in Chinese).石磊,马素花,李伟峰,等.混凝土,2013(11),101.16 He J, Yang C H.Bulletin of the Chinese Ceramic Society,2009,28(6),1225(in Chinese).何娟,杨长辉.硅酸盐通报,2009,28(6),1225.17 Jian Qi, Xiuxiang Gao, Huhe Chen, et al.Spectroscopy and Spectral Analysis,2008(3),538(in Chinese).齐剑,高秀香,陈呼和,等.光谱学与光谱分析,2008(3),538.18 Ravi R, Rajesh M, Thirumalini S.Journal of Building Engineering,2018,15.19 Chen J X, Zhang K, Sun K L, et al.Journal of Synthetic Crystals,2018,47(10),2216(in Chinese).陈菊香,张克,孙开莲,等.人工晶体学报,2018,47(10),2216.20 He Z, Hu J, Wang F R, et al.Journal of Wuhan University(Enginee-ring),2017,50(5),663(in Chinese).何真,胡骏,王逢睿,等.武汉大学学报(工学版),2017,50(5),663.21 Wei Guofeng, Zhang Hui, Wang Hongmin, et al.Construction and Buil-ding Materials,2011,28(1),624.22 Bella G Di, Fiore V, Galtieri G, et al.Construction and Building Mate-rials,2014,58,159.23 Yu Yan.The influence of chloride binding in cement paste with meta-kaolin as admixture, Master's Thesis, Chongqing University, China,2010(in Chinese).晏宇. 偏高岭土对水泥石固结氯离子性能的影响,硕士学位论文,重庆大学,2010.24 Bao L S, Song X C, Yu L, et al.Journal of Shenyang Jianzhu University(Natural Science),2010,26(1),36(in Chinese).包龙生,宋晓纯,于玲,等.沈阳建筑大学学报(自然科学版),2010,26(1),36.25 Guo L P, Zhang J, Cao Y Z, et al.Materials Reports A: Review Papers,2017,31(12),132(in Chinese).郭丽萍,张健,曹园章,等.材料导报:综述篇,2017,31(12),132.26 Zhao Zhenxuan, Zhang Lei, Dai Hongxing, et al.Microporous and Mesoporous Materials,2011,138(1),191.27 Morse J W, Bender M L.Chemical Geology,1990,82(90),265.28 Jiang X X.Journal of Xi'an Shiyou University(Natural Science Edition),2015,30(6),89(in Chinese).姜欣欣. 西安石油大学学报(自然科学版),2015,30(6),89.29 Wang Hui, Gao Xiaojian, Liu Junzhe.Cold Regions Science and Techno-logy,2018,154,95.
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2021, Vol. 35 
