{"refrec":{"BRefID":242584,"RR":"<b>Yuan, Q.; Shi, C.; De Schutter, G.; Audenaert, K.</b> (2009). Effect of temperature on transport of chloride ions in concrete, <b><i>in</i></b>: Alexander, M.G. <i>et al.</i> (Ed.) <i>Concrete Repair, Rehabilitation and Retrofitting II.</i> pp. 159-160","BEntID":234283,"PublicFlag":1,"CheckedFlag":0,"wosflag":null,"vabbflag":null,"RefStringPartII":", <b><i>in</i></b>: Alexander, M.G. <i>et al.</i> <i>Concrete Repair, Rehabilitation and Retrofitting II.</i> pp. 159-160","DocTypID":17,"DocType":"Book chapters","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Yuan, Q.; Shi, C.; De Schutter, G.; Audenaert, K.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Yuan, Q. <i>et al.</i>","Englishabstract":"Chloride-induced corrosion is the major durability issue of reinforced concrete structures along seacoast and in cold areas where de-icing salts are used. Various service life prediction models based on chloride induced corrosion have been developed. Temperature plays an important role in modeling chloride transport in cement-based materials. However, it is often overlooked. In this paper, the effect of temperature on non-steady-state migration and diffusion coefficients of chloride ion in concrete with water-to-cement ratios of 0.35, 0.48 and 0.6 were investigated. Non-steady-state migration coefficient was measured at 20°C adn 5°C following NT build 492. Non-steady-state diffusion coefficient was measured at 5°C, 20°C and 40°C according to NT build 443. The effect of temperature on migration/diffusion coefficient is examined by using Arrhenius Equation. The results show that higher temperatures result in higher diffusion/migration coefficients. Temperatures alter the chloride penetration depth, but not the trend of chloride profile. The activation energy obtained from non-steady-state migration coefficient is quite comparable to Samson and Marchand’s results (Cement and Concrete Research, V37, 2007, 455-468), which is around 20 kJ/mol, and independent of water-to-cement ratio. However, the activation energy obtained from non-steady-state diffusion tests ranges from 17.9 to 39.9 kJ/mol, which seems dependent on water-to-cement ratio. The surface chloride concentration is also affected by water-to-cement ratio and temperature.","AbstractOtherLang":null,"BibLvlCode":"AM","StandardTitle":"Effect of temperature on transport of chloride ions in concrete","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2009,"MonPub":null,"DateUpdate":"2018-05-14","DateCreate":"2014-11-05","SecASFANote":null,"ConfID":null,"PeerRev":0,"VlizCoreFlag":1,"WoScode":"WOS:000266197100046","VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":242584,"PubliDate":2009,"Pagination":"159-160","XtraPublOfAnaID":null,"ISBN":"9780415468503","Volume":null,"Issue":null,"BRefMon":242582,"BRefMonRR":"<b>Alexander, M.G. <i>et al.</i> (Ed.)</b> (2009). Concrete Repair, Rehabilitation and Retrofitting II. 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