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1

CTAC, Department of Civil Engineering, University of Minho, Guimarães 4800-058, Portugal

2

Program of Civil Engineering, University of Pernambuco, Recife 50100-010, Brazil

3

Department of Civil Engineering, University of São Paulo, PhD Engenharia, São Paulo 05508-900, Brazil





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Author to whom correspondence should be addressed.



Academic Editor: Javier Narciso

Abstract Self-compacting concrete SCC demands more studies of durability at higher temperatures when subjected to more aggressive environments in comparison to the conventional vibrated concrete CC. This work aims at presenting results of durability indicators of SCC and CC, having the same water-binder relations and constituents. The applied methodologies were electrical resistivity, diffusion of chloride ions and accelerated carbonation experiments, among others, such as microstructure study, scanning electron microscope and microtomography experiments. The tests were performed in a research laboratory and at a construction site of the Pernambuco Arena. The obtained results shows that the SCC presents an average electrical resistivity 11.4% higher than CC; the average chloride ions diffusion was 63.3% of the CC; the average accelerated carbonation penetration was 45.8% of the CC; and the average open porosity was 55.6% of the CC. As the results demonstrated, the SCC can be more durable than CC, which contributes to elucidate the aspects related to its durability and consequent prolonged life cycle. View Full-Text

Keywords: self-compacting concrete SCC; conventional vibrated concrete CC; durability self-compacting concrete SCC; conventional vibrated concrete CC; durability





Autor: Carlos Calado 1,* , Aires Camões 1, Eliana Monteiro 2, Paulo Helene 3 and Béda Barkokébas, Jr. 2

Fuente: http://mdpi.com/



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