玄武岩纤维对橡胶混凝土抗冲击性能的影响

魏昆仑; 李双喜

doi:10.13204/j.gyjzG22031210

玄武岩纤维对橡胶混凝土抗冲击性能的影响

doi: 10.13204/j.gyjzG22031210

魏昆仑,
李双喜^,

新疆农业大学水利与土木工程学院, 乌鲁木齐 830052

基金项目:

新疆维吾尔自治区自然科学基金项目(2019D01A46)

详细信息

作者简介:
魏昆仑,男,1995年出生,硕士研究生

通讯作者:
李双喜,xjlsx123@126.com。

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- 被引次数: 0
出版历程
- 收稿日期: 2022-03-12
- 网络出版日期: 2023-02-06

Effect of Basalt Fiber on Impact Resistance of Rubber Concrete

WEI Kun-lun,
LI Shuang-xi^,

College of Hydraulic and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, China

摘要

摘要: 为研究玄武岩纤维(BF)对针状橡胶混凝土抗冲击性能的影响,通过落锤冲击试验,分析不同BF掺量和长度的针状橡胶混凝土抗冲击性能,结合扫描电子显微镜(SEM)观察微观结构并讨论增强机理,最后运用Weibull分布模型对抗冲击试验结果进行拟合。结果表明:BF可提高针状橡胶混凝土的抗冲击性能,当BF长为12mm、掺量为0.1%时,针状橡胶混凝土的冲击耗能提升率最大,为54%,此时相较于普通混凝土,玄武岩纤维橡胶混凝土(BFRC)的冲击耗能提高了516%;冲击动能作用下,针状橡胶通过变形耗散部分动能,BF通过与基体间的黏结力和摩擦力耗散部分动能用于纤维的拉拔形变破坏,两种材料减小了冲击动能对混凝土基体的损伤,达到增韧阻裂的目的;BFRC的抗冲击次数可用双参数Weibull分布统计分析。
- 玄武岩纤维 /
- 橡胶混凝土 /
- 抗冲击性能 /
- 威布尔分布 /
- 增韧阻裂
Abstract: In order to study the effect of basalt fiber (BF) on the impact resistance of acicular rubber concrete, the impact resistance of acicular rubber concrete with different BF content, and lengths was analyzed through drop weight impact test, its microstructure was observed combined with scanning electron microscope (SEM) and the reinforcement mechanism was discussed. Finally, the results of impact resistance test were fitted by Weibull distribution model.The results showed that BF could improve the impact resistance of acicular rubber concrete. When the BF length was 12 mm and the content was 0.1%, the impact energy consumption of acicular rubber concrete was the largest, which was 54%. At this time, compared with ordinary concrete, the impact energy consumption of basalt fiber rubber concrete (BFRC) was increased by 516%; under the action of impact kinetic energy, acicular rubber could absorb deformation, rebound and release part of the consumed kinetic energy. BF dissipated part of the kinetic energy through adhesion and friction with the matrix for fiber drawing deformation and damage. The two materials jointly reduced the damage of impact kinetic energy to the concrete matrix and achieved the purpose of toughening and crack resistance;the impact times of BFRC could be statistically analyzed by two parameter Weibull distribution.
- basalt fiber /
- rubber concrete /
- impact resistance /
- Weibull distribution /
- toughening and crack resistance

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参考文献(29)

[1]	晁夫奎, 王玉.我国废旧轮胎资源化技术应用现状及研究方向[J].再生资源与循环经济, 2021, 14(9):27-29.
[2]	郝贠洪, 樊磊, 韩燕, 等.冲击荷载作用下橡胶混凝土的损伤研究[J].振动与冲击, 2019, 38(17):73-80.
[3]	GUPTA T, SHARMA R K, CHAUDHARY S.Impact resistance of concrete containing waste rubber fiber and silica fume[J].International Journal of Impact Engineering, 2015, 83(9):76-87.
[4]	韩菊红, 袁群, 冯凌云, 等.橡胶混凝土的抗冲击性能研究[J].人民黄河, 2018, 40(11):107-109.
[5]	ABDELMONEM A, EL-FEKY M S, NASR E S A R, et al.Performance of high strength concrete containing recycled rubber[J].Construction and Building Materials, 2019, 227(10):1-10.
[6]	LI Y, ZHANG S, WANG R, et al.Potential use of waste tire rubber as aggregate in cement concrete:a comprehensive review[J].Construction and Building Materials, 2019, 225(11):1183-1201.
[7]	ISMAIL M K, HASSAN A, LACHEMI M.Effect of fiber type on impact and abrasion resistance of engineered cementitious composite[J].ACI Materials Journal, 2018, 115(6):957-968.
[8]	高真, 曹鹏, 孙新建, 等.玄武岩纤维混凝土抗压强度分析与微观表征[J].水力发电学报, 2018, 37(8):111-120.
[9]	XINZHONG WANG, JUN HE, et al.The effects of fiber length and volume on material proper-ties and crack resistance of basalt fiber reinforced concrete[J].Advances in Materials Science and Engineering, 2019, 2019(4):1-17.
[10]	王振山, 邢立新, 赵凯, 等.硫酸镁侵蚀环境下玄武岩纤维混凝土耐腐蚀及力学性能劣化研究[J].应用力学学报, 2020, 37(1):134-141.
[11]	朱涵, 刘昂, 于泳.低温下玄武岩纤维混凝土的抗冲击性能[J].材料科学与工程学报, 2018, 36(4):600-604.
[12]	ELIK Z, BINGL A F.Fracture properties and impact resistance of self-compacting fiber reinforced concrete (SCFRC)[J].Materials and Structures, 2020, 53(3):1-16.
[13]	YOUSSF O, MILLS J E, HASSANLI R.Assessment of the mechanical performance of crumb rubber concrete[J].Construction and Building Materials, 2016, 125(8):175-183.
[14]	胡艳丽, 高培伟, 李富荣, 等.不同取代率的橡胶混凝土力学性能试验研究[J].建筑材料学报, 2020, 23(1):85-92.
[15]	周浩, 贾彬, 黄辉, 等.玄武岩纤维混凝土抗压和抗折力学性能试验研究[J].工业建筑, 2019, 49(8):147-152.
[16]	SADRMOMTAZI A, TAHMOURESI B, SARADAR A.Effects of silica fume on mechanical strength and micros-tructure of basalt fiber reinforced cementitious composites (BFRCC)[J].Construction and Building Materials, 2018, 162(2):321-333.
[17]	贺东青, 王金歌, 王一鸣.橡胶掺量对CBFRC的物理力学性能影响[J].建筑材料学报, 2015, 18(5):857-860.
[18]	陈疏桐, 陈建东, 薛旭.玄武岩纤维橡胶混凝土力学及冻融性能试验研究[J].混凝土与水泥制品, 2020, 46(4):54-58.
[19]	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.
[20]	李冬, 丁一宁.钢筋与结构型合成纤维对混凝土抗冲击性能混杂效应的分析[J].振动与冲击, 2017, 36(2):123-128.
[21]	LI J J, NIU J G, WAN C J, et al.Investigation on mechanical properties and microstructure of high performance polypropylene fiber reinforced lightweight aggregate concrete[J].Construction and Building Materials, 2016, 118(8):27-35.
[22]	闻洋, 刘培培.橡胶混凝土抗冲击性能研究[J].硅酸盐通报, 2018, 37(3):792-799.
[23]	刘加平, 汤金辉, 韩方玉.现代混凝土增韧防裂原理及应用[J].土木工程学报, 2021, 54(10):47-54.
[24]	侯敏, 陶燕, 陶忠, 等.关于玄武岩纤维混凝土的增强机理研究[J].混凝土, 2020(2):67-71.
[25]	王立成, 王海涛, 刘汉勇.钢纤维轻骨料混凝土抗冲击性能试验研究与统计分析[J].大连理工大学学报, 2010, 50(4):557-563.
[26]	WEIBULL W.A statistical distribution function of wide applicability[J].Journal of Applied Mechanics, 1951, 18(3):293-297.
[27]	刘问, 徐世烺, 李庆华, 等.等幅疲劳荷载作用下超高韧性水泥基复合材料弯曲疲劳寿命试验研究[J].建筑结构学报, 2012, 33(1):119-127.
[28]	OH B H.Fatigue life distribution of concrete forvarious stress levels[J].ACI Materials Journal, 1991, 88(2):191-198.
[29]	RAHMANI T, KIANI B, SHEKARCHI M, et al.Statistical and experimental analysis on the behavior of fiber reinforced concretes subjected to drop weight test[J].Construction & Building Materials, 2012, 37(7):360-369.