The effect of added carbon black to concrete mix on corrosion of steel reinforcement was studied.
This was achieved by inserting steel bars in different concrete mixes containing 0.1, 0.2, 0.3, 0.4,
and 0.5, carbon black/cement. Samples were cured, immersed in 3.5% chloride solution for 6
months. Chloride permeability and corrosion rates were measured. Tests showed that corrosion
rate and chloride ions penetration decreased with increased carbon black content. This was expressed
due to filling effect of very fine particles of carbon black and was in the order less than
Koch, G.H., Brongers, M.P.H., Thompson, N.G., Paul Virmani, Y. and Payer, J.H. (2002) Corrosion Costs and Preventive Strategies in the United States, Supplement to Problems. Materials Performance, Report No. FHWA-RD-01-156, Federal Highway Administration, McLean.
Bertolini, L., Carsana, M. and Pedeferri, P. (2007) Corrosion Behaviour of Steel in Concrete in the Presence of Stray Current. Corrosion Science, 49, 1056-1068. http://dx.doi.org/10.1016/j.corsci.2006.05.048
Gurten, A.A., Kayakirilmaz, K. and Erbil, M. (2007) The Effect of Thiosemicarbazide on Corrosion Resistance of Steel Reinforcement in Concrete. Construction and Building Materials, 21, 669-676.
Traettberg, A. (1980) Frost Action in Mortar of Blended Cement with Silica Dust. Conference on Durability of Building Materials and Components, ASTM STP, 691, 536-548. http://dx.doi.org/10.1520/STP36087S
Nilforousha, M.R. (2005) The Effect of Micro Silica on Permeability and Chemical Durability of Concrete Used in the Corrosive Environment. Iranian Journal of Chemistry and Chemical Engineering, 24, 31-37.