橡胶混凝土的冲击压缩试验研究
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广东省自然科学基金重点资助项目(07117419);国家自然科学基金资助项目(10872052);广东省科技计划项目(2009B011200003,2009B011000020,2011B010400024)

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    摘要:

    采用分离式霍普金森压杆装置对橡胶颗粒体积分数为0%~20%的橡胶混凝土进行多应变率动态力学性能试验研究,得到同一类试件在4种应变率下的应力应变曲线.结果表明,橡胶混凝土是应变率敏感材料,其峰值应力、极限应变表现出显著的应变率强化效应.对于同一橡胶颗粒掺量,橡胶混凝土的增强效应随着应变率的增大而增强.对于同一应变率水平,橡胶混凝土的变形能力随橡胶掺量的增加而增强.从破坏形态来看,橡胶混凝土的抗冲击性能明显优于普通混凝土.

    Abstract:

    An experimental investigation on the dynamic mechanical properties of the rubberized concrete (RC)with rubber chips of volume fraction from 0%20% was conducted using splitHopkinson pressure bar(SHPB). For the same type of specimens, stressstrain curves under 4 different strain rates, were obtained. The test results show that the rubberized concrete has obvious ratedependent mechanical behavior, its peak stress, ultimate strain of elasticity exhibits significant effect of strain rate strengthening. For the same volume fraction of rubber chips, this effect strengthens with the increase of strain rate. For the same strain rate, the deformation performance of rubberized concrete increases with the increase of volume fraction of rubber chips. From the point of view of the failure mode, impact resistance of rubberized concrete is much better than that of normal concrete.

    参考文献
    [1]刘锋,潘东平,李丽娟,等.低强橡胶混凝土单轴受压本构的试验研究[J].建筑材料学报,2007,10(4):407411.
    LIU Feng,PAN Dongping,LI Lijuan,et al.Experimental study on constitutive equation of crumb rubber concrete subject to uniaxial compression[J].Journal of Building Materials,2007,10(4):407411.(in Chinese)
    [2]刘锋,潘东平,李丽娟,等.橡胶混凝土应力和强度的细观数值分析[J].建筑材料学报,2008,11(2):144151.
    LIU Feng,PAN Dongping,LI Lijuan,et al.Numerical simulation on microlevel of stress and strength in crumb rubber concrete[J].Journal of Building Materials, 2008,11(2):144151.(in Chinese)
    [3]LI Lijuan,CHEN Zhize,XIE Weifeng,et al.Experimental study of recycled rubber filled high strength concrete[J].Magazine of Concrete Research,2009,61(7):549556.
    [4]袁兵,刘锋,丘晓龙,等.橡胶混凝土不同应变率下抗压性能试验研究[J].建筑材料学报,2010,13(1):1216.
    YUAN Bing,LIU Feng,QIU Xiaolong,et al.Experimental study on compressive performances of rubber concrete under different strain rates[J].Journal of Building Materials,2010,13(1):1216.(in Chinese)
    [5]TOPCU I B,AVCULAR N.Collision behaviors of rubberized concrete[J].Cement and Concrete Research,1997,27(12):11351139.
    [6]FATTUHI N I,CLARK L A.Cementbased materials containing shredded scrap truck tire rubber[J].Journal of Construction and Building Materials,1996,10(4):229236.
    [7]ELDIN N N,SENOUCI A B.Rubbertire particles as concrete aggregates[J].ASCE Journal of Materials in Civil Engineering,1993,5(4):478496.
    [8]TOPCU I B.The properties of rubberized concrete[J].Cement and Concrete Research,1995,25(2):304310.
    [9]宋少民,刘娟红,金树新.橡胶粉改性的高韧性混凝土研究[J].混凝土与水泥制品,1997(1):1012.
    SONG Shaomin,LIU Juanhong,JIN Shuxin.Study on the rubber powermodified high toughness concrete[J].China Concrete and Cement Products,1997(1):1012.(in Chinese)
    [10]孙家瑛,高先芳,朱武达.橡胶混凝土研制及物理力学性能研究[J].混凝土,2001(10):3032.
    SUN Jiaying,GAO Xianfang,ZHU Wuda.Making of elastic concrete and study on its physical mechanical properties[J].Concrete,2001(10):3032.(in Chinese)
    [11]ATAHAN A O,SEVIM U K.Testing and comparison of concrete barriers containing shredded waste tire chips[J].Materials Letters,2008,62(2122):37543757.
    [12]胡时胜.霍普金森压杆技术[J].兵器材料科学与工程,1991,122(11):4047.
    HU Shisheng.Technology of splitHopkinson pressure bar[J].Ordnance Material Science and Engineering,1991,122(11):4047.(in Chinese)
    [13]GROTE D L,PARK S W,ZHOU M.Dynamic behavior of concrete at high strain rates and pressures(Ⅰ):Experimental characterization[J].International Journal of Impact Engineering,2001,25(9):869886.
    [14]王礼立.应力波基础[M].北京:国防工业出版社,1985:5260.
    WANG Lili.Foundation of stress waves[M].Beijing:National Defense Industry Press,1985:5260.(in Chinese)
    [15]KOLSKY H.An investigation of mechanical properties at very high strain rates[J].Proceedings of the Physical Society(Section B),1949,62(11):676700.
    [16]MEYERS M A.Dynamic behavior of materials[M].Beijing:National Defense Industry Press,2006:212216.
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郭永昌,刘锋,陈贵炫,曾广尚,刘丰.橡胶混凝土的冲击压缩试验研究[J].建筑材料学报,2012,(1):139-144

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  • 收稿日期:2010-10-18
  • 最后修改日期:2011-02-24
  • 在线发布日期: 2012-04-10
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