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Advances in Civil Engineering
Volume 2018, Article ID 1096282, 9 pages
Research Article

Modeling of Corrosion Rate and Resistivity of Steel Reinforcement of Calcium Aluminate Cement Mortar

1Civil Engineering School, Polytechnic University of Madrid, C/ Profesor Aranguren, s/n, Ciudad Universitaria, 28040 Madrid, Spain
2Spanish Institute of Cement and Its Applications (IECA), C/ José Abascal 53, 28003 Madrid, Spain
3Centro de Investigación y de Estudios Avanzados del IPN, Unidad Mérida, km 6 Antigua Carretera a Progreso, 97310 Mérida, YUC, Mexico
4I.E.S. “Enrique Tierno Galván”, C/ Camino de los Frailes, s/n, Leganés, 28911 Madrid, Spain

Correspondence should be addressed to Miguel Ángel Sanjuán; se.acei@naujnasam

Received 3 August 2017; Accepted 26 December 2017; Published 5 March 2018

Academic Editor: Constantin Chalioris

Copyright © 2018 Cristina Argiz et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Calcium aluminate cement (CAC) is a binder whose hydrated compounds change over time from cubic phases to hexagonal phases, producing an increase of porosity in reinforced concretes. Thereby, chloride ions, among other steel corrosion promoters, can enter the concrete more easily leading to an increase of the reinforcement corrosion process. When such a transformation of phases is completed, a characteristic value regarding both corrosion intensity (Icorr) and resistivity (related to the ohmic drop of the cementitious material) is reached, which depends mainly on the mix proportions of the material and the curing procedure. This paper presents the characteristic corrosion intensity values of steel embedded in mortars made of CAC after five years of exposure to either a 0.5 mol/l or 1.5 mol/l NaCl solution in order to be applied to estimate the service life of reinforced concrete made of calcium aluminate cement (CAC) which is used in real construction structures. Ohmic drop measurements are also presented to support the values obtained. The aim of this paper is to model the corrosion rate and resistivity of the steel reinforcement of calcium aluminate cement mortar with regard to environmental factors (temperature and chloride content) and mortar quality (water/cement ratio).