粗骨料与钢纤维对超高性能混凝土单轴拉伸性能的影响<sup>*</sup>

doi:10.11896/j.issn.1005-023X.2017.023.015

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Abstract In order to improve the uniaxial tensile property of ultra-high performance concrete (UHPC) with coarse aggregate, uniaxial tensile test and image analysis were employed to investigate the effects of dosage, maximum particle size of coarse aggregate on the tensile property of UHPC and steel fiber dispersion in the UHPC system, respectively. The experimental results showed that with the increase of dosage and particle size of coarse aggregate, the distribution coefficient and orientation coefficient of steel fiber in the UHPC systems were significantly decreased, resulting in the declines of tensile first cracking strength, post-cracking strength and energy absorption capacity of UHPC with coarse aggregate. Based on the matching relationship between maximum particle size of coarse aggregate and volume fraction and diameter of steel fiber (D_max=3d_f/(V_f)^0.5), the introduction of hybrid steel fibers can make full use of the hierarchical matching relationship between the multi-scale steel fibers and aggregates with different particle size distribution. The uniaxial tensile property of UHPC with coarse aggregate could be improved by the hybridization of straight steel fiber with 0.12 mm diameter, 10 mm length and 1.2% volume fraction and hooked-end steel fiber with 0.35 mm diameter, 20 mm length and 1.8% volume fraction when the volume fraction and maximum particle size of coarse aggregate were 10% and 10 mm, respectively. And the UHPC's tensile post-cracking strength and energy absorption capacity were 8.69 MPa and 11.10 J, respectively.

Key words： coarse aggregate maximum particle size steel fiber ultra-high performance concrete uniaxial tensile property

Published: 10 December 2017 Online: 2018-05-08

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TU528

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	Articles by authors
	ZHANG Lihui
	LIU Jiaping
	ZHOU Huaxin
	LIU Jianzhong
	ZHANG Qianqian
	HAN Fangyu

Cite this article:

ZHANG Lihui,LIU Jiaping,ZHOU Huaxin, et al. Effects of Coarse Aggregate and Steel Fiber on Uniaxial Tensile Property of Ultra-high Performance Concrete[J]. Materials Reports, 2017, 31(23): 109-114.

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https://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2017.023.015 OR https://www.mater-rep.com/EN/Y2017/V31/I23/109

1 Chen B C, Ji T, Huang Q W, et al. Review of research on ultra-high performance concrete[J]. J Architecture Civil Eng, 2014, 31(3):1(in Chinese).
陈宝春,季韬,黄卿维,等. 超高性能混凝土研究综述[J]. 建筑科学与工程学报,2014,31(3):1.
2 Yoo D Y, Yoon Y S. A review on structural behavior, design, and application of ultra-high-performance fiber-reinforced concrete[J]. Int J Concr Struct Mater, 2016, 10(2): 1.
3 Perry V H, Seibert P J. The use of UHPFRC (Ductal??) for bridges in North America: The technology, applications and challenges facing commercialization[C]∥Proceedings of Second International Symposium on Ultra High Performance Concrete. Kassel, 2008.
4 Schmidt M, Fehling E. Ultra-high-performance concrete: Research, development and application in Europe[J]. ACI Special publication, 2005, 228: 51.
5 Zhang Y S, Sun W, Liu S F, et al. Preparation of C200 green reactive powder concrete and its static-dynamic behaviors[J]. Cem Concr Compos, 2008, 30(9): 831.
6 Yang S L, Millard S G, Soutsosmn, et al. Influence of aggregate and curing regime on the mechanical properties of ultra-high performance fiber reinforced concrete (UHPFRC)[J]. Constr Build Mater, 2009, 23(6): 2291.
7 Wille K, Naaman A E, Ei-tawil S, et al. Ultra-high performance concrete and fiber reinforced concrete: Achieving strength and ducti-lity without heat curing[J]. Mater Struct, 2012, 45(3): 309.
8 Zhao S J, Fan J J, Sun W. Utilization of iron ore tailings as fine aggregate in ultra-high performance concrete[J]. Constr Build Mater, 2014, 50(2): 540.
9 Karmout M. Mechanical properties of ultra high performance concrete produced in gaza strip[D]. Iran: The Islamic University of Gaza, 2009.
10 Wang C, Yang C H, Liu F, et al. Preparation of ultra-high performance concrete with common technology and materials[J]. Cem Concr Compos, 2012, 34(4): 538.
11 Peng G F, Yang J, Gao Y X, et al. Factors influencing compressive strength of ultra-high-performance concrete with coarse aggregate [J]. J North China University of Water Resources and Electric Power, 2012, 33(6): 5(in Chinese).
朋改非,杨娟,高育欣,等.含粗骨料的超高性能混凝土抗压强度的影响因素[J].华北水利水电学院学报,2012,33(6):5.
12 Liu J Z, Han F Y, Cui G, et al. Combined effect of coarse aggregate and fiber on tensile behavior of ultra-high performance concrete [J]. Constr Build Mater, 2016, 121: 310.
13 Park S H, Kim D J, Ryu G S, et al. Tensile behavior of ultra high performance hybrid fiber reinforced concrete[J]. Cem Concr Compos, 2012, 34(2): 172.
14 Hannawi K, Bian H, Prince-agbodjan W, et al. Effect of different types of fibers on the microstructure and the mechanical behavior of ultra-high performance fiber-reinforced concretes[J]. Compos Part B Eng, 2016, 86: 214.
15 Wille K, Kim D J, Naaman A E. Strain-hardening UHP-FRC with low fiber contents[J]. Mater Struct, 2011, 44(3): 583.
16 Kang S T, Kim J K. The relation between fiber orientation and tensile behavior in an ultra high performance fiber reinforced cementitious composites (UHPFRCC)[J]. Cem Concr Res, 2011, 41(10): 1001.
17 Huang X Y, Ranade R, Li V C, et al. Development of green engineered cementitious composites using iron ore tailings as aggregates [J]. Constr Build Mater, 2013, 44(44): 757.
18 Liu J P, Li C F, Liu J Z, et al. Characterization of fiber distribution in steel fiber reinforced cementitious composites with low water-binder ratio[J]. Indian J Eng Mater Sci, 2011, 18(6): 449.
19 Liu J Z, Zhang L H, Li C F, et al. Dispersive characterization and control of fiber in polyvinyl alcohol fiber cement composites[J]. J Chin Ceram Soc, 2015, 43(8): 1061(in Chinese).
刘建忠, 张丽辉, 李长风, 等. 聚乙烯醇纤维在水泥基复合材料中的分散性表征及调控[J]. 硅酸盐学报, 2015, 43(8): 1061.
20 Nguyen D L, Ryu G S, Koh K T, et al. Size and geometry depen-dent tensile behavior of ultra-high-performance fiber-reinforced concrete[J]. Compos Part B Eng, 2014, 58: 279.
21 Li C F, Liu J Z, Zhou H X, et al. Tensile constitutive model of fiber reinforced cementitious composites [J]. J Hebei University Technology, 2014, 43(6): 35(in Chinese).
李长风,刘建忠,周华新, 等.纤维增强水泥基复合材料的拉伸本构关系模型[J].河北工业大学学报, 2014, 43(6): 35.
22 Ma J, Yang X Y. Selection of maximum particle size of coarse aggregate in steel fiber reinforced concrete[J]. Low Temperature Architecture Technol, 1997(2): 37(in Chinese).
马军, 杨向宁. 钢纤维混凝土粗骨料最大粒径的选择[J]. 低温建筑技术, 1997(2): 37.