混杂纤维-尾矿砂ECC配合比优化及疲劳性能研究

硅酸盐通报 ›› 2023, Vol. 42 ›› Issue (5): 1785-1793.

所属专题：资源综合利用

混杂纤维-尾矿砂ECC配合比优化及疲劳性能研究

高英力¹, 冯心崚¹, 龙国鑫^1,2, 卜涛^1,2, 李正康^1,2

1.长沙理工大学交通运输工程学院,长沙 410114;
2.湖南省国盈公路物资有限公司,长沙 410016

收稿日期:2023-01-11 修订日期:2023-03-13 出版日期:2023-05-15 发布日期:2023-06-01
通信作者: 冯心崚,硕士研究生。E-mail:397742845@qq.com
作者简介:高英力(1977—),男,博士,教授。主要从事固体工业废弃物综合利用、先进土木工程材料方面的研究。E-mail:yingligao509@126.com
基金资助:
国家自然科学基金(52278239,51978080);湖南省科技厅重点研发项目(2021SK2044);湖南省自然科学基金(2022JJ30042)

Ratio Optimization and Fatigue Performance Research of Mixed Fiber-Tailing Sand ECC

GAO Yingli¹, FENG Xinling¹, LONG Guoxin^1,2, BU Tao^1,2, LI Zhengkang^1,2

1. School of Traffic and Transportation Engineering, Changsha University of Science and Technology, Changsha 410114, China;
2. Hunan Province Guoying Highway Materials Co., Ltd., Changsha 410016, China

Received:2023-01-11 Revised:2023-03-13 Online:2023-05-15 Published:2023-06-01

摘要/Abstract

摘要： 采用不同种类的纤维和尾矿砂制备环保型混杂纤维-尾矿砂工程水泥基复合材料(MFT-ECC)。以流动度和力学性能为指标,通过正交试验优选了MFT-ECC中不同纤维的最优掺量;通过四点弯曲疲劳试验,对比了不同应力水平下各组ECC试件的疲劳性能;利用扫描电子显微镜观测MFT-ECC的微观结构。结果表明:当聚乙烯醇纤维、碳酸钙晶须、改性聚丙烯纤维的体积掺量分别为0.9%、0.8%、0.3%时,MFT-ECC的流动度和力学性能最优;掺量优选后的MFT-ECC的疲劳性能最好,其疲劳寿命随应力变化敏感性低,与基准组相比,不同应力水平下的强度折减系数分别提高了1.33%和6.56%;尾矿砂的加入使ECC内部产生填充效应和堆积效应,提高了材料的密实度。本研究为制备经济环保、性能优越的ECC材料提供了参考。

关键词: ECC, 混杂纤维, 尾矿砂, 配合比优化, 疲劳性能, 微观结构

Abstract: Different types of fibers and tailing sand were adopted to prepare the environmentally friendly mixed fiber-tailing sand engineered cementitious composites (MFT-ECC). Fluidity and mechanical properties were taken as the indicators, and the optimal content of different fibers in MFT-ECC was selected through orthogonal tests. The four-point bending fatigue test was applied to compare the fatigue properties of each ECC specimen under different stress levels. The microstructureof MFT-ECC was observed with scanning electron microscope. The results show that the fluidity and mechanical properties of MFT-ECC are optimal when the volume fraction of polyvinyl alcohol fiber, calcium carbonate whisker and modified polypropylene fiber is 0.9%, 0.8% and 0.3% respectively. The MFT-ECC with optimized content has the best fatigue performance, the fatigue life has low sensitivity to stress changes, and its strength reduction coefficients compared with the base group under different stress levels increase by 1.33% and 6.56%. The adding of tailing sand in the ECC leads to the filling effect and stacking effect, which improves the compactness of material. This study provides a reference for the preparation of low-cost and environmentally friendly ECC materials with excellent performance.

Key words: ECC, mixed fiber, tailing sand, ratio optimization, fatigue performance, microstructure

中图分类号:

TU528

高英力, 冯心崚, 龙国鑫, 卜涛, 李正康. 混杂纤维-尾矿砂ECC配合比优化及疲劳性能研究[J]. 硅酸盐通报, 2023, 42(5): 1785-1793.

GAO Yingli, FENG Xinling, LONG Guoxin, BU Tao, LI Zhengkang. Ratio Optimization and Fatigue Performance Research of Mixed Fiber-Tailing Sand ECC[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2023, 42(5): 1785-1793.

参考文献

[1] YUAN F, PAN J L, LEUNG C K Y. Flexural behaviors of ECC and concrete/ECC composite beams reinforced with basalt fiber-reinforced polymer[J]. Journal of Composites for Construction, 2013, 17(5): 591-602.
[2] HU S, CAI H, HONG R, et al. Performance test and microstructure of modified PVC aggregate-hybrid fiber reinforced engineering cementitious composite (ECC)[J]. Materials, 2021, 14(8): 1856.
[3] MA H Q, YI C, WU C. Review and outlook on durability of engineered cementitious composite (ECC)[J]. Construction and Building Materials, 2021, 287: 122719.
[4] LI M, LI V C. Influence of material ductility on performance of concrete repair[J]. ACI Materials Journal, 2009, 106(5): 419-428.
[5] MENG D, LEE C, ZHANG Y X. Flexural fatigue properties of a polyvinyl alcohol-engineered cementitious composite[J]. Magazine of Concrete Research, 2019, 71(21): 1130-1141.
[6] ALAM B, YAMAN I O. Stress-based fatigue performance and fatigue life prediction of engineered cementitious composites[J]. Journal of Materials in Civil Engineering, 2021, 33(2): 04020470.
[7] ARCE G, NOORVAND H, HASSAN M, et al. Cost-effective ECC with low fiber content for pavement application[J]. MATEC Web of Conferences, 2019, 271: 07001.
[8] CHEUNG Y N. Investigation of concrete components with apseudo-ductile layer[D]. Hong Kong:Hong Kong University of Science and Technology, 2004.
[9] 周美容, 张雪梅. 混杂纤维增强混凝土材料的力学性能和耐久性能研究[J]. 功能材料, 2021, 52(1): 1133-1138.
ZHOU M R, ZHANG X M. Research on mechanical properties and durability of hybrid fiber reinforced concrete materials[J]. Journal of Functional Materials, 2021, 52(1): 1133-1138 (in Chinese).
[10] 潘钻峰, 汪卫, 孟少平, 等. 混杂聚乙烯醇纤维增强水泥基复合材料力学性能[J]. 同济大学学报(自然科学版), 2015, 43(1): 33-40.
PAN Z F, WANG W, MENG S P, et al. Study on mechanical properties of hybrid PVA fibers reinforced cementitious composites[J]. Journal of Tongji University (Natural Science), 2015, 43(1): 33-40 (in Chinese).
[11] 夏超凡, 李志华, 张聪. 碳酸钙晶须对混杂纤维增强高延性水泥基复合材料力学性能的影响[J]. 功能材料, 2020, 51(1): 1120-1125.
XIA C F, LI Z H, ZHANG C. Effect of calcium carbonate whisker on mechanical properties of hybrid fiber reinforced high ductility cementitious composites[J]. Journal of Functional Materials, 2020, 51(1): 1120-1125 (in Chinese).
[12] 喻振贤, 李汇, 管品武, 等. 利用矿山尾砂废石配制C50泵送混凝土的试验研究[J]. 混凝土, 2013(2): 87-90.
YU Z X, LI H, GUAN P W, et al. Text study of preparing C50 pump concrete by using mine tailings and waste rock[J]. Concrete, 2013(2): 87-90 (in Chinese).
[13] 朱永祥, 林祖宏, 梁冠军. 铜矿尾砂绿色混凝土的力学性能及耐久性试验研究[J]. 延安大学学报(自然科学版), 2014, 33(4): 31-35.
ZHU Y X, LIN Z H, LIANG G J. Experimental study on mechanical and durable properties of copper tailing green concrete[J]. Journal of Yanan University (Natural Science Edition), 2014, 33(4): 31-35 (in Chinese).
[14] 李育昕. 钢纤维尾矿砂混凝土基的力学性能试验研究[J]. 山西建筑, 2021, 47(8): 95-97+167.
LI Y X. Experimental investigation on steel fiber and tailings sand of the basic mechanical properties of concrete[J]. Shanxi Architecture, 2021, 47(8): 95-97+167 (in Chinese).
[15] LEE S W, OH C L, ZAIN M R M, et al. Mechanical performances of green engineered cementitious composites incorporating various types of sand[J]. Key Engineering Materials, 2019, 821: 512-517.
[16] 苏骏, 赵家玉, 李磊. 钢-PVA混杂纤维再生混凝土梁抗弯性能试验研究[J]. 混凝土与水泥制品, 2021(6): 50-55.
SU J, ZHAO J Y, LI L. Experimental study on flexural behavior of steel-PVA hybrid fiber reinforced recycled concrete beams[J]. China Concrete and Cement Products, 2021(6): 50-55 (in Chinese).
[17] 张鹏, 代思源, 王磊, 等. 纳米SiO₂和聚乙烯醇纤维对混凝土抗弯拉性能的影响[J]. 科学技术与工程, 2021, 21(10): 4191-4195.
ZHANG P, DAI S Y, WANG L, et al. Effect of nano-SiO₂ and PVA fiber on flexural performance of concrete[J]. Science Technology and Engineering, 2021, 21(10): 4191-4195 (in Chinese).
[18] 焦晓光, 黄瑞. 纤维混凝土复合材料的力学性能及强度模型研究[J]. 化工新型材料, 2020, 48(s1): 124-129.
JIAO X G, HUANG R. Research on mechanical property and strength model of fiber concrete composite material[J]. New Chemical Materials, 2020, 48(s1): 124-129 (in Chinese).
[19] 张文华, 张仔祥, 刘鹏宇, 等. 多尺度纤维增强超高性能混凝土的轴心抗拉和抗压行为[J]. 硅酸盐学报, 2020, 48(8): 1155-1167.
ZHANG W H, ZHANG Z X, LIU P Y, et al. Uniaxial tensile and compressive stress-strain behavior of multi-scale fiber-reinforced ultra-high performance concrete[J]. Journal of the Chinese Ceramic Society, 2020, 48(8): 1155-1167 (in Chinese).
[20] 张聪, 曹明莉. 多尺度纤维增强水泥基复合材料力学性能试验[J]. 复合材料学报, 2014, 31(3): 661-668.
ZHANG C, CAO M L. Mechanical property test of a multi-scale fiber reinforced cementitious composites[J]. Acta Materiae Compositae Sinica, 2014, 31(3): 661-668 (in Chinese).
[21] GHANEM S Y, BOWLING J, SUN Z H. Mechanical properties of hybrid synthetic fiber reinforced self-consolidating concrete[J]. Composites Part C: Open Access, 2021, 5: 100154.
[22] ABID S R, HILO A N, DAEK Y H, et al. Mechanical properties of ECC incorporating low-cost PVA fibers[J]. Applied Mechanics and Materials, 2020, 897: 78-84.
[23] 曹露, 李永鹏, 郑逢时. PVA纤维在ECC材料中分散性的定量评价方法[J]. 中外公路, 2013, 33(4): 310-315.
CAO L, LI Y P, ZHENG F S. Quantitative evaluation method of dispersion of PVA fiber in ECC material[J]. Journal of China & Foreign Highway, 2013, 33(4): 310-315 (in Chinese).
[24] 何锐, 周娟兰, 朱永光. 干湿循环下高韧性水泥混凝土自愈合特性研究[J]. 中外公路, 2011, 31(3): 240-245.
HE R, ZHOU J L, ZHU Y G. Study on self-healing characteristics of high toughness cement concrete under dry-wet cycle[J]. Journal of China & Foreign Highway, 2011, 31(3): 240-245 (in Chinese).
[25] 苗海强, 高启程, 王任. PVA-ECC材料的力学与收缩性能研究[J]. 塑料科技, 2020, 48(8): 23-27.
MIAO H Q, GAO Q C, WANG R. Study on mechanical and shrinkage properties of PVA-ECC materials[J]. Plastics Science and Technology, 2020, 48(8): 23-27 (in Chinese).
[26] GAO Y L, ZHOU W J, ZENG W, et al. Preparation and flexural fatigue resistance of self-compacting road concrete incorporating nano-silica particles[J]. Construction and Building Materials, 2021, 278: 122380.
[27] ZHANG Z G, YANG F, LIU J C, et al. Eco-friendly high strength, high ductility engineered cementitious composites (ECC) with substitution of fly ash by rice husk ash[J]. Cement and Concrete Research, 2020, 137: 106200.

混杂纤维-尾矿砂ECC配合比优化及疲劳性能研究

Ratio Optimization and Fatigue Performance Research of Mixed Fiber-Tailing Sand ECC

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