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The Effect of Cracks on Chloride Penetration into Concrete
Yoon, In Seok,Schlangen, Erik,Rooij, Mario R. de,van Breugel, Klaas Trans Tech Publications, Ltd. 2007 Key engineering materials Vol.348 No.-
<P>This study is focused on examining the effect of critical crack width in combination with crack depth on chloride penetration into concrete. Because concrete structures have to meet a minimum service-life, critical crack width has become an important parameter. Specimens with different crack width / crack length have been subjected to rapid chloride migration testing (RCM). The results of this study show a critical crack width of about 0.012 mm. Cracks smaller than this critical crack width are considered not to have a significant influence on the rate of chloride transport inwards, while chloride penetration does proceed faster above this critical crack width.</P>