|本期目录/Table of Contents|

[1]李长辉,杨 放,王启材,等.改性合成纤维混凝土弯曲及抗冲击试验[J].建筑科学与工程学报,2022,39(06):24-33.[doi:10.19815/j.jace.2022.01052]
　LI Chang-hui,YANG Fang,WANG Qi-cai,et al.Bending and Impact Test on Modified Synthetic Fiber Reinforced Concrete[J].Journal of Architecture and Civil Engineering,2022,39(06):24-33.[doi:10.19815/j.jace.2022.01052]
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改性合成纤维混凝土弯曲及抗冲击试验(PDF)
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
39卷
期数:
2022年06期
页码:
24-33
栏目:
建筑材料
出版日期:
2022-11-30

文章信息/Info

Title:
Bending and Impact Test on Modified Synthetic Fiber Reinforced Concrete
文章编号:
1673-2049(2022)06-0024-10
作者:
李长辉1,杨 放1,王启材2,陈 宇1,韦志远3,吴 堃1
(1. 中国民航大学 交通科学与工程学院,天津 300300; 2. 天津大学 建筑工程学院,天津300384; 3. 广西大学 土木建筑工程学院,广西 南宁 530004)
Author(s):
LI Chang-hui1, YANG Fang1, WANG Qi-cai2, CHEN Yu1, WEI Zhi-yuan3, WU Kun1
(1. School of Transportation Science and Engineering, Civil Aviation University of China, Tianjin 300300, China; 2. School of Civil Engineering, Tianjin University, Tianjin 300384, China; 3. School of Civil Engineering and Architecture, Guangxi University, Nanning 530004, Guangxi, China)
关键词:
道路工程;  改性合成聚丙烯纤维混凝土;  冲击试验;  四点弯曲试验;  抗弯性能;  抗冲击性能
Keywords:
road engineering;  modified synthetic polypropylene fiber reinforced concrete;  impact test;  four-point bending test;  flexural performance;  impact resistance performance
分类号:
U414
DOI:
10.19815/j.jace.2022.01052
文献标志码:
A
摘要:
针对普通混凝土道面易开裂、使用寿命无法达到设计寿命的情况,在普通混凝土中加入合成聚丙烯纤维及聚丙烯腈纤维,以提高混凝土的抗弯拉开裂性能及冲击韧性。对改性合成聚丙烯纤维混凝土及聚丙烯腈纤维混凝土进行了四点弯曲试验,并采用自行设计的冲击试验装置进行了冲击试验及经冻融循环后冲击试验。试验结果表明:在几乎不影响抗压强度的情况下,长度20、40 mm的合成聚丙烯纤维可以显著提升混凝土的抗弯韧性和冲击次数,经冻融后合成聚丙烯纤维混凝土的冲击次数下降幅度明显低于普通混凝土; 在抗弯韧性及抗冲击性能方面,改性合成聚丙烯纤维改善效果最佳,聚丙烯腈纤维次之,而长度40 mm的合成聚丙烯纤维又略强于长度20 mm的合成聚丙烯纤维; 在抗弯韧性方面,掺有长度40 mm合成聚丙烯纤维混凝土相较素混凝土提升了60.09%～120.62%; 未经冻融前掺有长度40 mm合成聚丙烯纤维混凝土在冲击试验中的初裂冲击次数和破坏冲击次数均为最高,相较素混凝土分别提升了114.29%～157.14%和120%～306.67%,相较于掺有长度为20 mm合成聚丙烯纤维的混凝土分别提升了5.56%～23.53%和15.15%～35.90%,相较于掺有聚丙烯腈纤维的混凝土分别提升了5.56%～13.33%和36.36%～60.66%; 试验结果可为混凝土道面的建设提供参考依据。
Abstract:
Aiming at the situation that ordinary concrete pavement was easy to crack and service life cannot reach the design life, synthetic polypropylene fiber and polyacrylonitrile fiber were added to ordinary concrete to improve the flexural performance and impact toughness of concrete. Four-point bending tests were carried out on modified synthetic polypropylene fiber reinforced concrete and polyacrylonitrile fiber reinforced concrete. The impact test and the impact test after freeze-thaw cycles were carried out by a self-designed impact test device. The test results show that the synthetic polypropylene fibers with lengths of 20 mm and 40 mm can significantly improve the flexural toughness and impact times of concrete without affecting the compressive strength. The impact times of synthetic polypropylene fiber concrete after freeze-thaw are significantly lower than those of ordinary concrete. In terms of flexural toughness and impact resistance performance, the modified synthetic polypropylene fiber has the best improvement effect, followed by polyacrylonitrile fiber, and the synthetic polypropylene fiber with a length of 40 mm is slightly stronger than the synthetic polypropylene fiber with a length of 20 mm. In terms of flexural toughness, compared with plain concrete, the concrete with 40 mm synthetic polypropylene fiber increased by 60.09%-120.62%. The initial crack impact times and failure impact times of concrete mixed with synthetic polypropylene fiber with a length of 40 mm before freezing and thawing are the highest in the impact test, which are 114.29%-157.14% and 120%-306.67% higher than those of plain concrete, and 5.56%-23.53% and 15% higher than those of concrete mixed with synthetic polypropylene fiber with a length of 20 mm. The test results can provide reference for the construction of concrete pavement.

参考文献/References:

[1] 李为民,许金余.玄武岩纤维对混凝土的增强和增韧效应[J].硅酸盐学报,2008,36(4):476-481,486.
LI Wei-min,XU Jin-yu.Strengthening and Toughening in Basalt Fiber-reinforced Concrete[J].Journal of the Chinese Ceramic Society,2008,36(4):476-481,486.
[2]焦楚杰,孙 伟,高培正,等.钢纤维混凝土抗冲击试验研究[J].中山大学学报(自然科学版),2005,44(6):41-44.
JIAO Chu-jie,SUN Wei,GAO Pei-zheng,et al.Experiment and Study on SFRC Subjected to Impact Loading[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2005,44(6):41-44.
[3]杨松霖,刁 波.超高性能钢纤维混凝土力学性能[J].交通运输工程学报,2011,11(2):8-13.
YANG Song-lin,DIAO Bo.Mechanical Properties of Ultra-high Performance Steel Fiber Reinforced Concrete[J].Journal of Traffic and Transportation Engineering,2011,11(2):8-13.
[4]YOO D Y,BANTHIA N.Impact Resistance of Fiber-reinforced Concrete — A Review[J].Cement and Concrete Composites,2019,104:103389.
[5]瞿 竹,张 力,王德辉.不同组成材料对混凝土韧性和抗冲击性能的影响研究[J].混凝土与水泥制品,2020(2):28-31.
QU Zhu,ZHANG Li,WANG De-hui.Effects of Different Composition on the Toughness and Impact Resistance of Concrete[J].China Concrete and Cement Products,2020(2):28-31.
[6]岑国平,马国强,王硕太,等.机场道面合成纤维混凝土的耐久性[J].交通运输工程学报,2008,8(3):43-45,51.
CEN Guo-ping,MA Guo-qiang,WANG Shuo-tai,et al.Durability of Synthetic Fiber Reinforced Concrete for Airport Pavement[J].Journal of Traffic and Transportation Engineering,2008,8(3):43-45,51.
[7]毕 骏,张豫川,谌文武,等.聚丙烯纤维对混凝土力学性能影响的研究[J].硅酸盐通报,2015,34(6):1694-1699.
BI Jun,ZHANG Yu-chuan,CHEN Wen-wu,et al.Effect of Polypropylene Fiber on Concrete Mechanical Property[J].Bulletin of the Chinese Ceramic Society,2015,34(6):1694-1699.
[8]梁宁慧,钟 杨,刘新荣.多尺寸聚丙烯纤维混凝土抗弯韧性试验研究[J].中南大学学报(自然科学版),2017,48(10):2783-2789.
LIANG Ning-hui,ZHONG Yang,LIU Xin-rong.Experimental Study of Flexural Toughness for Multi-scale Polypropylene Fiber Reinforced Concrete[J].Journal of Central South University(Science and Technology),2017,48(10):2783-2789.
[9]杨成忠,刘新荣,李 虹,等.掺加聚丙烯纤维对路面混凝土抗冲击韧性的影响[J].重庆建筑大学学报,2008,30(6):42-45.
YANG Cheng-zhong,LIU Xin-rong,LI Hong,et al.Adding Polypropylene Fiber to Pavement Concrete and Its Influence on Shock Resistance Toughness[J].Journal of Chongqing Jianzhu University,2008,30(6):42-45.
[10]李兆林,石振武,柳明亮.不同种类聚丙烯纤维混凝土性能对比试验[J].科学技术与工程,2014,14(31):292-296.
LI Zhao-lin,SHI Zhen-wu,LIU Ming-liang.Comparative Experiment on Concrete Performance of Different Kinds of Polypropylene Fiber[J].Science Technology and Engineering,2014,14(31):292-296.
[11]XU B,TOUTANJI H A,GILBERT J.Impact Resistance of Poly(Vinyl Alcohol)Fiber Reinforced High-performance Organic Aggregate Cementitious Material[J].Cement and Concrete Research,2010,40(2):347-351.
[12]KURIHASHI Y,NONOMURA Y,KONNO H.Impact Resistance Behavior of Reinforced Concrete Beams Deteriorated due to Repeated Freezing and Thawing[J].Shock and Vibration,2020,2020:7834765.
[13]BANKIR M B,SEVIM U K.Performance Optimization of Hybrid Fiber Concrete According to Mechanical Properties[J].Construction and Building Materials,2020,261:119952.
[14]SAHIN Y,AKKAYA Y,TASDEMIR M A.Effects of Freezing Conditions on the Frost Resistance and Microstructure of Concrete[J].Construction and Building Materials,2021,270:121458.
[15]GUO H,JIANG L Z,TAO J L,et al.Influence of a Hybrid Combination of Steel and Polypropylene Fibers on Concrete Toughness[J].Construction and Building Materials,2021,275:122132.
[16]高 峰,郝贠洪,吴安利,等.低模量聚酯纤维/水泥基复合材料抗冲击性能及损伤机制[J].复合材料学报,2021,38(11):3838-3849.
GAO Feng,HAO Yun-hong,WU An-li,et al.Impact Resistance and Damage Mechanism of Low Modulus Polyester Fiber/Cement Matrix Composites[J].Acta Materiae Compositae Sinica,2021,38(11):3838-3849.
[17]KHEYRODDIN A,ARSHADI H,AHADI M R,et al.The Impact Resistance of Fiber-reinforced Concrete with Polypropylene Fibers and GFRP Wrapping[J].Materials Today:Proceedings,2021,45:5433-5438.
[18]王 璞,黄 真,周 岱,等.碳纤维混杂纤维混凝土抗冲击性能研究[J].振动与冲击,2012,31(12):14-18.
WANG Pu,HUANG Zhen,ZHOU Dai,et al.Impact Mechanical Properties of Concrete Reinforced with Hybrid Carbon Fibers[J].Journal of Vibration and Shock,2012,31(12):14-18.
[19]LI Z X,LI C H,SHI Y D,et al.Experimental Investigation on Mechanical Properties of Hybrid Fibre Reinforced Concrete[J].Construction and Building Materials,2017,157:930-942.
[20]LI Z X,LI C H,YAN J B.Seismic Behaviour of Hybrid-fibre Reinforced Concrete Shear Keys in Immersed Tunnels[J].Tunnelling and Underground Space Technology,2019,88:16-28.
[21]HSIE M,TU C,SONG P S.Mechanical Properties of Polypropylene Hybrid Fiber-reinforced Concrete[J].Materials Science and Engineering:A,2008,494(1/2):153-157.
[22]李长辉,石广顺,赵方冉,等.多因素耦合作用下透水混凝土道面抗冻性研究[J].公路交通科技,2021,38(4):9-15.
LI Chang-hui,SHI Guang-shun,ZHAO Fang-ran,et al.Study on Frost Resistance of Pervious Concrete Pavement Under Coupling of Multiple Factors[J].Journal of Highway and Transportation Research and Development,2021,38(4):9-15.
[23]严武建,牛富俊,吴志坚,等.冻融循环作用下聚丙烯纤维混凝土的力学性能[J].交通运输工程学报,2016,16(4):37-44.
YAN Wu-jian,NIU Fu-jun,WU Zhi-jian,et al.Mechanical Property of Polypropylene Fiber Reinforced Concrete Under Freezing-thawing Cycle Effect[J].Journal of Traffic and Transportation Engineering,2016,16(4):37-44.
[24]孔祥清,何文昌,邢丽丽,等.钢纤维-聚丙烯纤维混杂对再生混凝土抗冲击性能的影响[J].复合材料学报,2020,37(7):1763-1773.
KONG Xiang-qing,HE Wen-chang,XING Li-li,et al.Effect of Steel Fiber-polypropylene Fiber Hybrid Additon on Impact Resistance of Recycled Aggregate Concrete[J].Acta Materiae Compositae Sinica,2020,37(7):1763-1773.
[25]刘 贺,付 智,刘奕含.路面纤维混凝土韧性试验研究[J].中国公路学报,2012,25(2):33-39.
LIU He,FU Zhi,LIU Yi-han.Study of the Toughness of Fiber Reinforced Concrete Pavement in Laboratory[J].China Journal of Highway and Transport,2012,25(2):33-39.

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备注/Memo

备注/Memo:
收稿日期:2022-01-14
基金项目:天津市技术创新引导专项基金企业科技特派员项目(21YDTPJC00470); 中央高校基本科研业务费专项资金项目(3122019106)
作者简介:李长辉(1989-),男,河北成安人,讲师,工学博士,E-mail:lichanghui0531@126.com。通信作者:陈 宇(1987-),男,天津市人,讲师,工学博士,E-mail:tjuchy@163.com。
更新日期/Last Update: 2022-12-20