Materiales de Construcción, Vol 37, No 205 (1987)

Effect of cement type and cement proportion in the corrosion rate of rebars embedded in carbonated mortar


https://doi.org/10.3989/mc.1987.v37.i205.874

C. Alonso
ICCET/CSIC, Spain

C. Andrade
ICCET/CSIC, Spain

Abstract


The inexistence of quantitative data on steel behaviour in carbonated mortar and concrete have driven us to carry out a serie of tests to know the kinetic of the corrosion rebars.
Polarization Resistance was the technique used to determine the corrosion rate of the rebars.
In the present tests a first study with mortar has been carried out to know the influence of the cement nature, its proportion and water-cement (W/c) ratio on the steel corrosion rate.
The results indicate that the type of cement has not a significant influence, non a systematic trend in the corrosion rate measured.
On the contrary the cement proportion seems to have a more important effect (the higher the cement dosage c/s, the lower the corrosion is).

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Copyright (c) 1987 Consejo Superior de Investigaciones Científicas (CSIC)

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