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Chloride penetration in concrete exposed under different temperatures



Author(s): B. Li, L. Tang
Paper category: Workshop
Book title: International RILEM Workshop on Integral Service Life Modelling of Concrete Structures
Editor(s): R.M. Ferreira, J. Gulikers, C. Andrade
Print ISBN: 978-2-35158-058-5
e-ISBN: 978-2-35158-090-5
Publisher: RILEM Publications SARL
Pages: 31 - 38
Total Pages: 8
Language: English


Abstract: 
This paper presents the results from the laboratory investigation of chloride penetration in concrete exposed under different temperatures. As a part of doctoral work, six types of Portland cement concrete with w/c from 0.30 to 0.75 and with or without air entrained agent were used in the investigation. The concrete specimens were exposed to 3% NaCl solution under constant temperatures of 20 ºC, 5 ºC and 0 ºC, and daily cyclic temperature regime for freeze-thaw actions. The measurements include liquid uptake and chloride penetration profiles. The results show considerably big differences in chloride penetration profiles obtained after exposure under different temperatures. The results demonstrate again that the freeze-thaw action significantly increases the liquid uptake. This uptaken liquid as a chloride solution increased chloride ingress in concrete.


Online publication: 2013
Publication Type: full_text
Public price (Euros): 0.00