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干湿交替环境下氯离子在承压混凝土内的传输特性
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国家自然科学基金资助项目（51109121，51379111）；湖北省自然科学基金资助项目（2012FFB03803）


Transportation of Chloride Ion in Sustained Load Concrete under Dry Wet Cycles
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    摘要:

    通过试验模拟海洋环境下氯离子对在役混凝土柱的侵蚀，探究了干湿交替环境下应力水平及试验周期对氯离子在混凝土中传输特性的影响规律.采用干湿时间比为2∶1的干湿循环制度，试验历时1a，研究了不同应力水平下混凝土内的氯离子含量分布特性.通过数据分析得到应力水平和试验周期对混凝土内氯离子传输进程、表面氯离子含量、对流区深度及峰值氯离子含量的影响规律；建立了同时考虑应力水平和试验周期影响的氯离子扩散系数预测公式；阐释了应力水平对干湿交替环境下混凝土中氯离子不同传输机制的影响机理.

    Abstract:

    By the test of reinforced concrete columns in simulated marine environment under sustained load, the influence rules of stress level and test period were explored on transport characteristics of chloride ions. Using dry wet time ratio of 2∶1, concentration distribution characteristics of chloride ions were studied by the experiment of specimens with different stress levels for one year. The influence rules of stress level and test period were obtained on chloride ion transport process, surface chloride ion concentration, convection zone depth and the peak value of chloride ion concentration by data analysis. Formula was established to predict the chloride ion diffusion coefficient considering both stress level and test period. The influence of stress level was illustrated on the different transmission mechanisms of chloride ion in concrete under dry wet cycles.

    参考文献
    [1]延永东,金伟良,王海龙，等.干湿交替作用下氯离子在开裂混凝土中的输运规律[J].中南大学学报:自然科学版,2013,44(5):2060 2066.
    YAN Yongdong,JIN Weiliang,WANG Hailong,et al.Chloride transport in cracked concrete under wet dry cycling condition[J].Journal of Central South University:Natural Science,2013,44(5):2060 2066.(in Chinese)
    [2]庞超明,徐剑,王进,等.混凝土干湿过程及循环制度的研究[J].建筑材料学报,2013,16(2):315 320.
    PANG Chaoming,XU Jian,WANG Jin,et al.Investigation of the process and regime of drying and wetting of concrete[J].Journal of Building Materials,2013,16(2):315 320.(in Chinese)
    [3]李春秋,李克非.干湿交替下表层混凝土中氯离子传输：原理、试验和模拟[J].硅酸盐学报,2010,38(4)：581 582.
    LI Chunqiu,LI Kefei.Chloride ion transport in cover concrete under drying wetting cycles:Theory, experiment and modeling[J].Journal of the Chinese Ceramic Society,2010,38(4):581 582.(in Chinese)
    [4]关鹏.干湿循环下混凝土氯离子传输模型研究[J].混凝土,2012(11):7 11.
    GUAN Peng.Study on chloride transport model in concrete under drying wetting cycles[J].Concrete,2012(11):7 11.(in Chinese)
    [5]岳鹏君,吴相豪.干湿循环对粉煤灰混凝土中氯离子渗透性能的影响[J].中国水运,2010,10(8):223 224.
    YUE Pengjun,WU Xianghao.The effect of drying wetting cycles to chloride ion permeability of fly ash concrete[J].China Water Transport,2010,10(8):223 224.(in Chinese)
    [6]MEDEIROS M H F,GOBBI A,RUS G C,et al.Reinforced concrete in marine environment:Effect of wetting and drying cycles,height and positioning in relation to the sea shore[J].Construction and Building Materials,2013,44:452 457.
    [7]YE Hailong,JIN Nanguo,JIN Xianyu,et al.Model of chloride penetration into cracked concrete subject to drying wetting cycles[J].Construction and Building Materials,2012,36:259 269.
    [8]ZHANG Qingzhang,GU Xianglin,ZHANG Weiping,et al.Study on effect of soaking time on the transmission of chloride ion in concrete under drying wetting cycles[J].Advanced Materials Research,2011(261/263):61 68.
    [9]ARYA C,BIOUBAKHSH S,VASSIE P.Chloride penetration in concrete subject to wet/dry cycling:Influence of moisture content[C]∥Proceedings of the Institution of Civil Engineers:Structures and Buildings.London：Leroy Gardner，2014,167(2):94 107.
    [10]SONG H W,LEE C H,ANN K Y.Factors influencing chloride transport in concrete structures exposed to marine environments[J].Cement and Concrete Composites,2008,30(2):113 121.
    [11]YANG Y,TONG H Z,XU S F,et al.Effects of load level on water permeability of concrete[C]∥Proceeding of 1st International Conference on Microstructure Related Durability of Cementitious Composites. Nanjing:RILEM Publications,2008,61:545 552.
    [12]FRANCOIS R,MASO J C.Effect of damage in reinforced concrete on carbonation or chloride penetration[J].Cement and Concrete Research,1988,18(6):961 970.
    [13]CHUN Q L.Corrosion initiation of reinforcing steel in concrete under natural salt spray and service loading—Results and analysis[J].ACI Materials Journal,2000,97(6):690 697.
    [14]何世钦,贡金鑫.弯曲荷载作用对混凝土中氯离子扩散的影响[J].建筑材料学报,2005,8(2):134 138.
    HE Shiqin,GONG Jinxin.Influence of flexural loading on permeability of chloride ion in concrete[J].Journal of Building Materials,2005,8(2):134 138.(in Chinese)
    [15]WANG Hailong, LU Chunhua,JIN Weiliang,et al.Effect of external loads on chloride transport in concrete[J].Journal of Materials in Civil Engineering,2011,23(7):1043 1049.
    [16]徐港,徐可,苏义彪,等.不同干湿制度下氯离子在混凝土中的传输特性[J].建筑材料学报,2014,17(1):54 59.
    XU Gang,XU Ke,SU Yibiao,et al.Transport characteristics of chloride ion in concrete under dry wet cycles[J].Journal of Building Materials,2014,17(1):54 59.(in Chinese)
    [17]孙继成.应力及干湿循环作用下氯离子在混凝土中的渗透性研究[D].北京:中国建筑材料科学研究总院,2013.
    SUN Jicheng.Study on the permeability of chloride ions in concrete under stress and wetting drying cycles factors[D].Beijing:China Building Materials Academy,2013.(in Chinese)
    [18]WILLIAMSON S,CLARK L A.The influence of the permeability of concrete cover on reinforcement corrosion[J].Magazine of Concrete Research,2001,53(3):183 195.
    [19]冷发光,周永祥,王晶.混凝土耐久性及其检验评价方法[M].北京：中国建材工业出版社,2012:103 107.
    LENG Faguang,ZHOU Yongxiang,WANG Jing.Concrete durability and the test evaluation method[M].Beijing:China Building Industry Press,2012:103 107.(in Chinese)
    [20]方永浩,李志清,张亦涛.持续压荷载作用下混凝土的渗透性[J].硅酸盐学报,2005,33(10):1281 1286.
    FANG Yonghao,LI Zhiqing,ZHANG Yitao.Permeability of concrete under sustained compressive load[J].Journal of the Chinese Ceramic Society,2005,33(10):1281 1286.(in Chinese)
    [21]KREIJGER P C.The skin of concrete—Composition and properties[J].Materials and Structures,1984,17(100):275 283.
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徐港,李运攀,王谊敏,王青.干湿交替环境下氯离子在承压混凝土内的传输特性[J].建筑材料学报,2015,18(5):727-732

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  • 收稿日期:2014-03-07
  • 最后修改日期:2014-04-21
  • 在线发布日期: 2015-10-29
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