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The integration of non-destructive test methods into the south african durability index approach



Author(s): H. Beushausen, S.J. Starck, M.G. Alexander
Paper category: Conference
Book title: 2nd International conference on Microstructural-related Durability of Cementitious Composites
Editor(s): Guang Ye, K. Van Breugel, Wei Sun, Changwen Miao
Print ISBN: 978-2-35158-129-2
e-ISBN: 978-2-35158-123-0
Publisher: RILEM Publications SARL
Pages: 523-531
Total Pages: 8
Language: English


Abstract: Currently, many reinforced concrete structures are undergoing premature deterioration, due to poor durability-based design and construction practice. In South Africa, the Durability Index approach has become an accepted method for specifying (or assessing) the durability of RC structures. The DI approach consists of three tests (viz. oxygen permeability index (OPI), chloride conductivity and water sorptivity), to assess the cover concrete quality of a structure. Durability can then be predicted, based on the environmental exposure and design service life for that structure. The research presented shows correlations between the DI approach (OPI), and non-destructive test methods (viz. Torrent air-permeability). These correlations present opportunities for an integrated approach, which may be used to assess the ‘as-built’ quality of a structure, in a rapid but well founded method. The success of a fully integrated approach may provide a scientifically established alternative, for assessing the potential durability of RC structures, which is cost-effective and easy to implement.


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