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-  2017 

PVA纤维增强水泥基复合材料的抗拉性能 Tensile performance of PVA fiber reinforced cementitious composites

Keywords: 应变硬化水泥基复合材料,PVA纤维,单轴拉伸,抗拉强度,极限拉伸应变

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Abstract:

通过单轴拉伸试验,研究了粉煤灰种类、掺量、水胶比和砂胶比对聚乙烯醇(PVA)纤维应变硬化水泥基复合材料(SHCC)拉伸性能的影响.研究结果表明:粉煤灰替代部分水泥会降低SHCC的抗拉强度,随着粉煤灰掺量的增加,SHCC的应变硬化和多缝开裂特性能得到更好的发挥;在相同掺量下,Ⅰ级粉煤灰相较于Ⅱ级粉煤灰而言,能使SHCC具有更好的拉伸性能;水胶比的增加与砂胶比的减小,都会使SHCC的初裂强度和极限拉伸强度降低,但其极限拉伸应变会有所提升,较高的水胶比与较低的砂胶比更利于SHCC应变硬化和多缝开裂特性的发挥

References

[1]  Li V C.Engineered cementitious composites-tailored composites through micromechanical modeling[J].Fiber Reinforced Concrete:Present and the Future,1998:64-97.
[2]  王飞.应变硬化水泥基复合材料(SHCC)力学性能试验研究[D].青岛:青岛理工大学,2010.Wang Fei.Research on mechanical properties of strain-hardening cement-based composites[D].Qingdao:Qingdao Technological University,2010.
[3]  Li V C.On engineered cementitious composites(ECC)a review of the material and its applications[J].Journal of Advanced Concrete Technology,2011,(1):215-230.
[4]  Li V C,Wang S,Wu C.Tensile strain-hardening behavior of polyvinyl alcohol engineered cementitious composite(PVA-ECC)[J].ACI Materials Journal,2001,98(6):483-492.
[5]  Kanda T,Lin Z,Li C.Tensile stress-strain modeling of pseudostrain hardening cementitious composites[J].Journal of Materials in Civil Engineering,2000,12(2):147-156.
[6]  Li V C.高延性纤维增强水泥基复合材料的研究进展及应用[J].硅酸盐学报,2007,35(4):531-536.Li V C.Progress and application of engineered cementitious composites[J].Journal of the Chinese Ceramic Society,2007,35(4):531-536.
[7]  Yang E H,Wang S,Yang Y,et al.Fiber-bridging constitutive law of engineered cementitious composites[J].Journal of Advanced Concrete Technology,2008,6(1):181-193.
[8]  Zhu Yu,YangYingzi,Gao Xiaojian,et al.Mechanical properties of engineered cementitious composites with high volume fly ash[J].Journal of Wuhan University of Technology(Material Science Edition),2009,24:166-170.
[9]  Kamile Tosun-Felekoˇglu,Burak Felekoˇglu,Ravi Ranade,et al.The role of flaw size and fiber distribution on tensile ductility of PVA-ECC[J].Composites Part B Engineering,2014,56(1):536-545.
[10]  Felekoglu B,Tosun-Felekoglu K,Ranade R,et al.Influence of matrix flowability,fiber mixing procedure,and curing conditions on the mechanical performance of HTPP-ECC[J].Composites Part B Engineering,2014,60(60):359-370.
[11]  Li M,Li V C.Rheology,fiber dispersion,and robust properties of engineered cementitious composites[J].Materials&Structures,2012,46(3):405-420.
[12]  吴瑞雪.应变硬化水泥基复合材料单轴拉伸性能及其温度影响规律研究[D].青岛:青岛理工大学,2013.Wu Ruixue.Research on tensile mechanical performance and temperature effect of strain hardening cement-based composites[D].Qingdao:Qingdao Technological University,2013.
[13]  Li V C.Tailoring ECC for special attributes:a review[J].International Journal of Concrete Structures&Materials,2013,7(3):251-251.
[14]  Zhang Z,Qian S,Ma H.Corrigendum to“Investigating mechanical properties and self-healing behavior of microcracked ECC with different volume of fly ash”[J].Construction&Building Materials,2014,55(2):17-23.
[15]  Li V C,Mishra D K,Naaman A E,et al.On the shear behavior of engineered cementitious composites[J].Advanced Cement Based Materials,1994,(1):142-149.
[16]  Pang Chaoming,Leung C K Y,Sun Wei.Preparation and properties of high ductility cementitious composites with high content of fly-ash[J].Journal of the Chinese Ceramic Society,2009,37(12):2071-2077.
[17]  李艳,刘泽军,梁兴文.高性能PVA纤维增强水泥基复合材料单轴受拉特性[J].工程力学,2013,30(1):322-330.Li Yan,Liu Zejun,Liang Xingwen.Tensile performance of high performance PVA fiber reinforced cementitious composites under uniaxial tension[J].Engineering Mechanics,2013,30(1):322-330.
[18]  高淑玲.PVA纤维增强水泥基复合材料假应变硬化及断裂特性研究[D].大连:大连理工大学,2006.Gao Shuling.Study on pseudo strain-hardening and fracture characteristic of polyvinyl alcohol fiber reinforced cementitious composites[D].Dalian:Dalian University of Technology,2006.

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