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Transient diffusion behavior of chloride ions in concrete with a macro crack
Mu, S.; De Schutter, G.; Liu, J. (2013). Transient diffusion behavior of chloride ions in concrete with a macro crack. Applied Mechanics and Materials 405-408: 2671-2676. dx.doi.org/10.4028/www.scientific.net/AMM.405-408.2671
In: Applied Mechanics and Materials. Trans Tech Publications: Ütikon-Zürich. ISSN 1660-9336, more
Peer reviewed article  

Available in Authors 

Keyword
    Marine
Author keywords
    Concrete cracking; concrete width; chloride diffusion

Authors  Top 
  • Mu, S.
  • De Schutter, G., more
  • Liu, J.

Abstract
    Nowadays, influences of concrete cracking on durability of concrete structure are widely reported. However, the influence of macro cracks on chloride diffusion of concrete is unknown under the condition of marine submergence. Therefore, the present paper adopted a notch method to study natural chloride diffusion in cracked concrete with a width of above 0.3 mm. The results show Apparent diffusion coefficient of acid soluble chloride rises from 2.66 x10-12 m2/s to 5.92x10-12 m2/s with increasing crack width from 0 mm to 0.45 mm. Besides, one exponential function was used to describe the piecewise relationship between diffusion coefficient (water or acid soluble chloride) and crack width.

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