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Computers and Concrete Volume 10, Number 4, October 2012 , pages 391-407 DOI: https://doi.org/10.12989/cac.2012.10.4.391 |
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A software-assisted comparative assessment of the effect of cement type on concrete carbonation and chloride ingress |
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S. Demis and V.G. Papadakis
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| Abstract | ||
| Utilization of supplementary cementing materials (SCM) by the cement industry, as a highly promising solution of sustainable cement development aiming to reduce carbon dioxide emissions, necessitates a more thorough evaluation of these types of materials on concrete durability. In this study a comparative assessment of the effect of SCM on concrete durability, of every cement type as defined in the European Standard EN 197-1 is taking place, using a software tool, based on proven predictive models (according to performance-related methods for assessing durability) developed and wide-validated for the estimation of concrete service life when designing for durability under harsh environments. The effect of Type II additives (fly ash, silica fume) on CEM I type of cement, as well as the effect of every Portland-composite type of cement (and others) are evaluated in terms of their performance in carbonation and chloride exposure, for a service life of 50 years. The main aim is to portray a unified and comprehensive evaluation of the efficiency of SCM in order to create the basis for future consideration of more types of cement to enter the production line in industry. | ||
| Key Words | ||
| carbonation; cement type; chloride penetration; concrete technology; corrosion; model prediction; service life; software. | ||
| Address | ||
| S. Demis: AEIPLOUS Institute for Innovation & Sustainable Development, Patras, Greece; V.G. Papadakis: Department of Environmental and Natural Resources Management, University of Western Greece, Agrinio, Greece | ||