Author:
Lizarazo Marriaga Juan,Claisse Peter
Abstract
Corrosion of steel reinforcement due to chloride penetration is the greatest cause of durability problems in concrete; intense international research has been carried out to understand and avoid this. This paper summarises the results of a theoretical and experimental research programme investigating the influence of blast furnace slag on chloride-related transport properties. The relationship between the apparent chloride diffusion coefficient, electrical resistivity and compressive strength was measured. Chloride, hydroxide, sodium and potassium's intrinsic diffusion coefficients were obtained by using a computational model and an electrical migration test. The initial hydroxide composition of the pore solution, porosity and chloride binding capacity were also determined from the model. The results showed that blast furnace slag improved chloride penetration resistance, resulting in concrete which was less vulnerable to corrosion.
Publisher
Universidad Nacional de Colombia
Subject
General Engineering,Building and Construction
Reference15 articles.
1. Bertolini, L., Elsener, B., Pedeferri, P., Polder, R.B., Corrosion of Steel in Concrete: Prevention, Diagnosis and Repair., Wiley, First edition, London, 2004, pp.155-195.
2. Betancourt, J., Hooton, R.D., Study of the Joule effect on rapid chloride permeability values and evaluation of related electrical properties of concretes., Cement and Concrete Research, Vol. 34, 2004, pp. 1007-1015.
3. Claisse, P.A., Beresford T.W., Obtaining More from the Electrical Chloride Test., ACI - SP170-57, Vol. 170, 1997, pp. 1119-1132.
4. Claisse, P., Elsayad, H. Ganjian, E., Modelling the rapid chloride permeability test., Cement and Concrete Research, Vol. 40, 2010, pp. 405-409.
5. Crank, J., The Mathematics of Diffusion., Oxford University Press, Second Edition, Oxford, 1976, pp. 1-44.
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