Influence of an Applied Compressive Load on Capillary Absorption of Concrete: Observation of Anisotropy

W. P. Lu, F. Wittmann, P. Wang, Y. Zaytsev, T. Zhao
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引用次数: 7

Abstract

lt has been shown that capillary absorption and chloride penetration as well as carbonation are significantly influenced by application of a mechanical stress. This has obviously an influence of service life of reinforced concrete structures in practice. In the article capillary absorption has been studied under the influence of an applied compressive stress. The influence of micro-crack formation and creep of concrete on capillary absorption has been of particular interest. Results can be explained on the basis of changes of the pore structure under sustained load. (A)
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施加压缩荷载对混凝土毛细吸收的影响:各向异性观察
结果表明,施加机械应力对毛细管吸收、氯离子渗透和碳化作用有显著影响。在实际应用中,这对钢筋混凝土结构的使用寿命有明显的影响。本文研究了施加压应力影响下的毛细吸收。混凝土微裂缝的形成和徐变对毛细吸收的影响一直是人们特别关注的问题。结果可以根据持续荷载作用下孔隙结构的变化来解释。(一)
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