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Volume 43 Issue 7
Dec.  2014
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Zhao Hui, Zhang Yamei, Ming Jing. STUDY ON CONCRETE DURABILITY OF DIFFERENCE STRUCTURAL REGIONS UNDER MARINE ENVIRONMENT[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(7): 86-90,64. doi: 10.13204/j.gyjz201307020
Citation: Zhao Hui, Zhang Yamei, Ming Jing. STUDY ON CONCRETE DURABILITY OF DIFFERENCE STRUCTURAL REGIONS UNDER MARINE ENVIRONMENT[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(7): 86-90,64. doi: 10.13204/j.gyjz201307020

STUDY ON CONCRETE DURABILITY OF DIFFERENCE STRUCTURAL REGIONS UNDER MARINE ENVIRONMENT

doi: 10.13204/j.gyjz201307020
  • Received Date: 2012-09-07
  • Publish Date: 2013-07-20
  • In order to study the damage characteristics and deterioration mechanism of concrete in difference structural regions, the appearance, mechanical properties, carbonation depth, distribution of free chloride content, apparent chloride ion diffusion coefficient, alkali content and the cover thickness of concrete for plate girder(atmosphere zone), cross beam(tidal zone) and square pile(underwater zone), at the typical region of a marine dock in Ningbo, were tested.The test data show that the structural concrete in the atmosphere and tidal zone have a better compressive strength state, while concrete in underwater zone has a poor compressive strength state, the carbonation depth and Dne/Dnd of the cover thickness are decreased from upper part to lower part, atmosphere zonetidal zoneunderwater zone, the distribution law of free chloride content, apparent chloride diffusion coefficient(Da) and alkali content of concrete are underwater zone tidal zoneatmosphere zone.The conclusions are drawn that CO2 of erosion action at atmosphere zone results in deterioration of the cover thickness, the combined action of harmful chloride ion and CO2 erosion lead to steel corrosion and deterioration of cover thickness at the tidal zone, due to the chloride ion and salt permeate into concrete of underwater zone, the coupling effect of chloride ion and high salt concentration accelerate the deterioration of cover thickness at the underwater zone.
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  • [2] Bryant Mather.Concrete Durability[J].Cement and Composites.2004(26):3-4.
    Liu Bingjing.Durability Design of Concrete Structures [M].Beijing: China Communications Press,2007,127.
    [3] 唐明述.中国水泥混凝土发展现状与展望[J].东南大学学报:自然科学版,2006(36):1-6.
    [4] 孙伟.荷载与环境因素藕合作用下结构混凝土的耐久性与服役寿命[J].东南大学学报:自然科学版,2006(36):7-14.
    [5] Alexander M G, Ballim Y, Stanish K.A Framework for Use of?Durability Indexes in Performance Based Design and Specifications?for Reinforced Concrete Structures[J].Materials and Structures [J].2008(41),921-936.
    [6] 仲伟秋,贡盒鑫.氯离子侵蚀环境下混凝土结构的耐久性评估[J].混凝土,2002(11):3-4.
    [7] 林宝玉,单国良.南方海港浪溅区钢筋混凝土耐久性研究[J].水运工程,1998(1):1-5.
    [8] 李顺凯,刘可心,秦明强,等.基于现场耐久性检测的承台海工混凝土寿命预测[J].混凝土,2008(11):117-119.
    [9] 王景贤.既有结构混凝土中碱含量的检测[J].建材技术与运用,2009(3):3-5.
    [10] JTT /TJ 21201公路桥梁承载能力检测评定规程[S].
    [11] 陈道普.风对混凝土碳化速度影响的研究[D].上海:同济大学,2006.
    [12] 陈浩宇,余红发,刘连新,等.混凝土在海洋环境和除冰盐条件下的氯离子扩散行为[J].华中科技大学学报:城市科学版,2005(9):48-52.
    [13] Luping T, Andersen A.Chloride Ingress Data from Five Years Field?Exposure in a Swedish Marine Environment[C]∥ Proceedings of?2nd International RILEM Workshop on Testing and Modeling the?Chloride Ingressin to Concrete.Paris:2000.
    [14] CECS 53∶93混凝土碱含量限值标准[S].
    [15] Berube M A, Dorion J, Duchesne J, et al.Laboratory and Field?Investigations of the Influence of Sodium Chloride on Alkali-Silica?Reactivity[J].Cement and Concrete Research,2003(33):77-84.
    [16] Sibbick R G.Mechanism Affecting the Development of Alkali-Slica?Reaction Hardened Concretes Exposed to Saline Environments[J].Magazine of Concrete Research,1998,50(144):147-159.
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