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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Resistance To Sulphate & Chloride Attack Of Concretes Modified With Permeability Reducing Admixture
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Abstract:A substantial research program was undertaken at the Australian Centre for Construction Innovation at UNSW to evaluate and explore the potential efficiency of permeability reducing admixtures to enhance concrete durability in aggressive environments. Three types of commercial concrete, containing the cement of Type-GP, Type-GB fly ash blend or Type-GB slag blend, were used in the experimental program. For each type of concrete, a control batch was produced without permeability reducing admixture and other batches were produced with addition of permeability reducing admixtures at various dose rates. This comprehensive research investigated the properties of concretes both with and without the admixture, and this paper outlines test results on sulphate resistance using test method AS2350.14 and on chloride resistance using test methods ASTM C1202 (modified) and Nordtest NT BUILD 443. Assessment of these test results indicates that, all other factors being equal, whilst concrete performance was influenced by cement type, these permeability reducing admixtures can also significantly improve the durability of concrete in aggressive environments.
Concrete Institute of Australia, International Partner Access.
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