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硫酸盐环境下混凝土抗压强度耐蚀系数研究
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国家自然科学基金资助项目（51078176）；甘肃省建设科技攻关项目(JK2010 58)


Corrosion Resistant Coefficient for Concrete Compressive Strength
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    摘要:

    基于混凝土腐蚀层厚度及腐蚀区混凝土抗压强度损失率的概念，建立了硫酸盐环境下混凝土试块的蚀强模型.根据该模型推导出混凝土抗压强度耐蚀系数计算公式，同时进行了3组全浸泡混凝土的腐蚀试验，并根据试验结果对混凝土抗压强度耐蚀系数计算公式进行拟合和参数分析.结果表明：根据所建立的模型得到的混凝土抗压强度耐蚀系数计算结果与试验结果吻合较好；硫酸盐环境下混凝土可划分为裂缝发展区、膨胀密实区和未腐蚀区3个区域；综合性的腐蚀系数可以反映混凝土配合比与抗硫酸盐腐蚀性的关系，腐蚀系数越大，抗硫酸盐腐蚀性越差.根据所建立的模型和计算方法能够评估和预测硫酸盐环境下混凝土的抗腐蚀性能.

    Abstract:

    Based on the thickness of surface corrosion layer and the loss rate of compressive strength in corrosion region and according to the model of strength damage of corroded concrete, the test of three groups of concrete samples immersed in sodium sulfate solution for long time was carried out. The experimental results were fitted, and parameters were analyzed. It is revealed that the calculation results and test results are in good agreement. The results show that the concrete under sulfate environment may be divided into three regions： expansion dense region, crack development region and uncorroded region. The comprehensive corrosion coefficient may reflect relationship between concrete mix ratio and corrosion resistance, the higher the corrosion coefficient, the worse the corrosion resistance. According to the model of strength damage of corroded concrete and the computation method of corrosion resistance coefficient for compressive strength, concrete corrosion resistance under sulfate environment may be evaluated and forecasted.

    参考文献
    [1]梁咏宁,袁迎曙.硫酸钠和硫酸镁溶液中混凝土腐蚀破坏的机理[J].硅酸盐学报,2007,35(4)：504 508.
    LIANG Yongning,YUAN Yingshu.Mechanism of concrete destruction under sodium sulfate and magnesium sulfate solution[J].Journal of the Chinese Ceramic Society,2007,35(4):504 508.(in Chinese)
    [2]马保国,贺行洋,苏英,等.内盐湖环境中混凝土硫酸盐侵蚀破坏研究[J].混凝土,2001(4)：11 15.
    MA Baoguo,HE Xingyang,SU Ying,et al.Investigation of sulfate deterioration of concrete in the environment of inland salt lake[J].Concrete,2001(4):11 15.(in Chinese)
    [3]TIXIER R,MOBASHER B.Modeling of damage in cement based materials subjected to external sulfate attack.I：Formulation[J].Journal of Materials in Civil Engineering,2003,15(4)：305 313.
    [4]JIN Zuquan,SUN Wei,ZHANG Yunsheng.Effect of chloride on damage of concrete attacked by sulfate[J].Journal of Wuhan University of Technology,2006,28(3):43 46.
    [5]SUN Chao,CHEN Jiankang,ZHU Jue,et al.A new diffusion model of sulfate ions in concrete[J].Construction and Building Materials,2013,39：39 45.
    [6]曹双寅.受腐蚀混凝土的力学性能[J].东南大学学报,1991,21(4)：89 95.
    CAO Shuangyin.Mechanical properties of corroded concrete[J].Journal of Southeast University,1991,21(4)：89 95.(in Chinese)
    [7]IDIART A E,LPEZ C M,CAROL I.Chemo mechanical analysis of concrete cracking and degradation due to external sulfate attack：A meso scale model[J].Cement & Concrete Composites,2011,33(3)：411 423.
    [8]BARY B.Simplified coupled chemo mechanical modeling of cement pastes behavior subjected to combined leaching and external sulfate attack[J].International Journal for Numerical and Analytical Methods in Geomechanics,2008,32(14)：1791 1816.
    [9]李士伟,王迎飞,王胜年.硫酸盐环境下混凝土损伤预测模型[J].武汉理工大学学报,2010,32(14)：35 39.
    LI Shiwei,WANG Yingfei,WANG Shengnian.Research on the prediction model of the concrete damage in the sulfate aggressive environment[J].Journal of Wuhan University of Technology,2010,32(14)：35 39.(in Chinese)
    [10]陈元素,李昕,范颖芳.受盐腐蚀混凝土抗压强度的试验研究[C]∥第15届全国结构工程学术会议论文集(Ⅱ)焦作：[s.n.],2006:5 10.
    CHEN Yuansu,LI Xin,FAN Yingfang.Test research on the salt corrosion concrete compressive strength[C]∥Proceedings of the 15th Nationwide Academic Conference on Structural Engineering(Ⅱ)Jiaozuo：[s.n.],2006：5 10.(in Chinese)
    [11]SONG Hui,CHEN Jiankang.Effect of damage evolution on Poisons ratio of concrete under sulfate attack[J].Acta Mechanica Solida Sinica,2011，24(3):209 215.
    [12]曹双寅,朱伯龙.受腐蚀混凝土和钢筋混凝土的性能[J].同济大学学报：自然科学版,1990,18(2):239 242.
    CAO Shuangyin,ZHU Bolong.The properties of concrete and reinforced concrete in the sulfate aggressive environment[J].Journal of Tongji University：Natural Science,1990,18(2):239 242.(in Chinese)
    [13]CLIFTON J R,PONNERSHEIM J M.Sulfate attack of cementations materials：Volumetric relations and expansions[R].Gaithersburg：Building and Fire Research Laboratory,National Institute of Standards and Technology Gaithersburg,1994.
    [14]TIXIER R,MOBASHER B.Modeling of damage in cement based materials subjected to external sulfate attack.Ⅱ：Comparison with experiments[J].Journal of Materials in Civil Engineering,2003，15(4)：314 322.
    [15]GB/T 50082—2009普通混凝土长期性能和耐久性能试验方法标准[S].
    GB/T 50082—2009Standard for test methods of long term performance and durability of ordinary concrete[S].(in Chinese)
    [16]杜健民,梁咏宁,张风杰.地下结构混凝土硫酸盐腐蚀机理及性能退化[M].北京:中国铁道出版社,2011：11 21.
    DU Jianmin,LIANG Yongning,ZHANG Fengjie.Mechanism and performance degradation of underground structure attacked by sulfate[M].Beijing：China Railway Publishing House,2011：11 21.(in Chinese)
    [17]曹双寅,朱伯龙.腐蚀和徐变作用下的钢筋混凝土结构的计算(上)[J].工业建筑,1991(2)：25 29.
    CAO Shuangyin,ZHU Bolong.Computation of reinforced concrete structures under the effects of creep and corrosion[J].Industrial Construction,1991(2)：25 29.(in Chinese)
    [18]刘汉昆,李杰.受侵蚀混凝土本构关系[J].建筑材料学报,2011,14(6)：736 741.
    LIU Hankun,LI Jie.Constitutive law of attacked concrete[J].Journal of Building Materials,2011,14(6)：736 741.(in Chinese)
    [19]余红发,华普校,屈武，等.抗腐蚀混凝土电杆在西北盐湖地区的野外暴露实验[J].混凝土和水泥制品,2003(6)：23 26.
    YU Hongfa,HUA Puxiao,QU Wu，et al.The field exposure experiment of corrosion resistant concrete pole in the northwest salt lake area[J].China Concrete and Cement Products,2003(6)：23 26.(in Chinese)
    [20]王遵亲,祝寿泉,俞仁培.中国盐渍土[M].北京:科学出版社，1993：9 12.
    WANG Zunqin,ZHU Shouquan,YU Renpei.China saline soil[M].Beijing：Science Press,1993：9 12.(in Chinese)
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张敬书,张银华,冯立平,董庆友,汪朝成.硫酸盐环境下混凝土抗压强度耐蚀系数研究[J].建筑材料学报,2014,17(3):369-377

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  • 收稿日期:2013-02-03
  • 最后修改日期:2013-04-17
  • 在线发布日期: 2014-06-25
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