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首页 > 过刊浏览>2021年第24卷第1期 >71-76. DOI:103969/j.issn.1007 9629202101010
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轴压重复荷载作用后再生混凝土毛细吸水性能
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国家自然科学基金资助项目（51922052,51778309,51908307）；山东省自然科学基金资助项目（ZR2018JL018）；山东省“双一流”建设工程土木；大连理工大学海岸和近海工程国家重点实验室开放课题基金资助项目（LP1902）


Capillary Water Absorption of Recycled Aggregate Concrete after Repeated Axial Compressive Loading
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    摘要:

    研究了应力水平（0、03、05、07）和再生粗骨料取代率（0%、30%、50%、100%）对再生混凝土毛细吸水性能的影响规律；基于毛细吸水的非饱和流体理论和试验结果，引入Boltzmann变量并采用水力扩散系数的指数形式，建立了考虑应力水平和再生粗骨料取代率影响的再生混凝土内部相对含水量分布预测模型.结果表明：随着再生粗骨料取代率和应力水平的增加，再生混凝土的毛细吸水质量和吸水率呈增加趋势；当应力水平一定时，水分侵入深度随着再生粗骨料取代率的增加而变大.

    Abstract:

    The influences of stress level(0, 03, 05, 07) and replacement ratio(0%, 30%, 50%, 100%) of recycled aggregate on capillary water absorption of recycled aggregate concrete was studied. Based on the unsaturated flow theory and the obtained experimental results, the predicted model of water distribution within concrete considering the influence of stress level and recycled aggregate replacement ratio is established using the Boltzmann variable and the exponential law of hydraulic diffusivity. The results indicate that capillary water absorption mass and sorptivity for recycled aggregate concrete show an increasing trend with the increase of recycled aggregate replacement ratio and stress level. Under a given stress level, the depth of water penetration into concrete increases with increasing recycled aggregate replacement ratio of recycled aggregates.

    参考文献
    [1]李秋义,全洪珠,秦原.再生混凝土性能与应用技术[M].北京：中国建材工业出版社,2010：4 10.
    LI Qiuyi,QUAN Hongzhu,QIN Yuan.Performance of application technology of recycled concrete[M].Beijing：China Building Materials Press,2010：4 10.(in Chinese)
    [2]应敬伟,蒙秋江,肖建庄.再生骨料CO2强化及其对混凝土抗压强度的影响[J].建筑材料学报,2017,20(2)：277 282.
    YING Jingwei,MENG Qiujiang,XIAO Jianzhuang.Effect of CO2 modified recycled aggregate on compressive strength of concrete[J].Journal of Building Materials,2017,20(2)：277 282.(in Chinese)
    [3]朋改非,黄艳竹,张九峰.骨料缺陷对再生混凝土力学性能的影响[J].建筑材料学报,2012,15(1)：80 84.
    PENG Gaifei,HUANG Yanzhu,ZHANG Jiufeng.Influence of defects in recycled aggregate on mechanical properties of recycled aggregate concrete[J].Journal of Building Materials,2012,15(1)：80 84.(in Chinese)
    [4]潘艺倩,梁超锋,何智海,等.再生骨料混凝土抗氯离子渗透性能研究进展[J].硅酸盐通报,2018,37(2)：501 507.
    PAN Yiqian,LIANG Chaofeng,HE Zhihai,et al.Research progress on the chloride permeability of recycled aggregate concrete[J].Bulletin of the Chinese Ceramic Society,2018,37(2)：501 507.(in Chinese)
    [5]吴相豪,岳鹏君.再生混凝土中氯离子渗透性能试验研究[J].建筑材料学报,2011,14(3)：381 384，417.
    WU Xianghao,YUE Pengjun.Experimental study on chloride ion penetration into recycled aggregate concrete[J].Journal of Building Materials,2011,14(3)：381 384，417.(in Chinese)
    [6]韩帅,李秋义,岳公冰,等.再生粗骨料品质和取代率对再生混凝土抗氯离子渗透性能影响[J].混凝土,2015(12)：80 83.
    HAN Shuai,LI Qiuyi,YUE Gongbing,et al.Influence of quality and substitution rate of recycled coarse aggregate on coefficient of the chloride migration of recycled concrete[J].Concrete,2015(12)：80 83.(in Chinese)
    [7]PEDRO D,DE BRITO J,EVANGELISTA L.Durability performance of high performance concrete made with recycled aggregates,fly ash and densified silica fume[J].Cement and Concrete Composites,2018,93：63 74.
    [8]QI B,GAO J M,CHEN F,et al.Chloride penetration into recycled aggregate concrete subjected to wetting drying cycles and flexural loading[J].Construction and Building Materials,2018,174：130 137.
    [9]欧阳璋,陈幼佳.重复压应力作用后再生混凝土中氯离子渗透性研究[J].混凝土,2017(1)：31 33.
    OUYANG Zhang,CHEN Youjia.Study on chloride permeability of recycled concrete after repeated compressive stress[J].Concrete,2017(1)：31 33.(in Chinese)
    [10]WANG W J,WU J,WANG Z,et al.Chloride diffusion coefficient of recycled aggregate concrete under compressive loading[J].Materials and Structures,2016,49(11)：4729 4736.
    [11]WU Y Q,XIAO J Z.The effect of microscopic cracks on chloride diffusivity of recycled aggregate concrete[J].Construction and Building Materials,2018,170：326 346.
    [12]王立成.建筑材料吸水过程中毛细管系数与吸水率关系的理论分析[J].水利学报,2009,40(9)：1085 1090.
    WANG Licheng.Analytical relationship between capillarity coefficient and sorptivity of building material[J].Shuli Xuebao,2009,40(9):1085 1090.(in Chinese)
    [13]郭远新,李秋义,单体庆,等.再生粗骨料混凝土配合比简易设计方法[J].沈阳建筑大学学报(自然科学版),2017，33(6)：1029 1038.
    GUO Yuanxin,LI Qiuyi,SHAN Tiqing,et al.Simplified design method for mix proportion of recycled coarse aggregate concrete[J].Journal of Shenyang Jianzhu University(Natural Science),2017，33(6):1029 1038.(in Chinese)
    [14]TAM V W Y,GAO X F,TAM C M.Microstructural analysis of recycled aggregate concrete produced from two stage mixing approach[J].Cement and Concrete Research,2005,35(6)：1195 1203.
    [15]鲍玖文,王立成,程宝娟.短期持压荷载与混凝土内水分传输的耦合过程[J].硅酸盐学报,2016,44(8)：1154 1160.
    BAO Jiuwen,WANG Licheng,CHENG Baojuan.Water transport in concrete coupled with short term sustained compressive loading[J].Journal of the Chinese Ceramic Society,2016,44(8)：1154 1160.(in Chinese)
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鲍玖文,李树国,张鹏,刘兆麟,赵铁军.轴压重复荷载作用后再生混凝土毛细吸水性能[J].建筑材料学报,2021,24(1):71-76

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  • 收稿日期:2019-08-18
  • 最后修改日期:2019-10-15
  • 在线发布日期: 2021-03-09
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