Performance-based evaluation of silica fume concrete against chloride induced corrosion

Author(s): E. Bora Kurt, M. Hulusi Ozkul, U. Anil Dogan
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: 97 - 106
Total Pages: 10
Language: English

Abstract: 
In this study, the effect of binder content, water to binder ratio and silica fume addition on the chloride induced corrosion is investigated together with their effect on compressive strength. A special type of factorial analysis approach is applied to find out the main influencing factors on chosen properties. In the analysis, four input factors were chosen, such as total binder content, water/binder ratio, silica fume/binder ratio as numeric factors and curing condition (in water or in air) as categorical factor. The range of the numeric factors were selected between 300-400 kg/m3 for binder content, 0.48-0.58 for water/binder ratio and 0.03-0.12 for silica fume/binder ratio. Water curing was applied over the half of the specimens while the remaining ones were stored in air under laboratory conditions. The compressive strength and accelerated chloride migration (ASTM C 1202) tests were conducted on the specimens at the age of 90 days. Following the curing period of 90 days, all the lollipop specimens prepared for corrosion tests are subjected to wetting-drying cycles in 1 M NaCl solution. Corrosion rates of the specimens were monitored by linear polarization method. Mathematical models are derived with respect to the parameters investigated.

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