期刊文献+

混凝土结构工程除盐的研究与应用 被引量:4

ON CHLORIDE EXTRACTION FROM CONCRETE STRUCTURES AND ITS APPLICATION
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摘要 基于氯离子腐蚀混凝土的电化学机理,探讨了用电化学方法反其道而行消除混凝土中氯离子的原理、可行性与工程应用前景。通过除盐试验和除盐后混凝土构件受力性能试验,研究了影响电化学方法除盐效果的各种参数(如碱溶液、电极电位、电流密度、金属网腐蚀牺牲等)及其对混凝土结构性能的影响;分析了除盐后钢筋周围混凝土凝胶体孔隙内碱类物质的积聚,及其对钢筋与混凝土之间粘结力的影响。除盐后的拉拔试验和钢筋混凝土板的弯曲试验表明,除盐后钢筋与混凝土之间的粘结性能会受到损伤,但粘结力的损伤不会对混凝土构件的正常使用性能和承载能力造成显著影响。 Based on the electrochemical principle of steel corrosion in concrete structures, the principle of chloride ion extraction from concrete is studied. Sixty cylinder specimen and three slab specimen with admixed chloride ion concentration varying from 1.5-3%, by weight of cement, were tested to study the coefficients which affect the efficiency of desalination process, bond strength and mechanical behavior of bending slabs after desalination. It is found that the option of anode mesh, electrolytes and current...
出处 《工程力学》 EI CSCD 北大核心 2005年第S1期82-89,共8页 Engineering Mechanics
基金 山东省教育厅发展计划项目(J01E05)
关键词 混凝土耐久性 钢筋腐蚀 氯盐 电化学 粘结性能 durability of concrete steel corrosion chloride electrochemistry bond strength
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同被引文献22

  • 1成立,黄绪泉,王小萍.电化学除盐对混凝土微观结构的影响[J].重庆建筑大学学报,2008,30(3):138-142. 被引量:7
  • 2成立,余其俊,韦江雄,范庆新.电化学除盐试验研究[J].广东建材,2006,29(7):8-9. 被引量:3
  • 3成立,王小萍,黄绪泉,余其俊,邓春林,韦江雄.正交试验法研究影响电化学除盐效率的因素[J].工业建筑,2007,37(6):73-75. 被引量:2
  • 4Yeih W,Chang J J, Hung C C. Selecting an adequate procedure for the electrochemical chloride removal [J]. Cement and Concrete Research, 2006,36(3) :562.
  • 5Ihekwaha N M, Hope B B, Hansson C M. Carbonation and electrochemical extraction from concrete [J]. Cement and Concrete Research, 1996,26 (7): 1095.
  • 6Polder R B. Electrochemical chloride removal from concrete prisms containing chloride penetrated from sea water [J]. Construction and Building Materials, 1996,10(1): 83.
  • 7Marcotte T D, Hansson C M, Hope B B. The effect of the electrochemical chloride extraction treatment on steel-reinforced mortar Part Ⅰ: Electrochemical measurements[J]. Cement and Concrete Research, 1999, 29(10): 1555.
  • 8Orellan J C, Escadeillas G, Arliguie G. Electrochemical chloride extraction: efficiency and side effects[J]. Cement and Concrete Research, 2004, 34(2): 227.
  • 9Ihekwaba N M, Hope B B, Hansson C M. Pull-out and bond degradation of steel rebars in ECE concrete[J]. Cement and Concrete Research, 1996, 26(2): 267.
  • 10Chang J J. A study of the bond degradation of rebar due to cathodic protection current [J]. Cement and Concrete Research,2002, 32(4): 657.

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