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Materials 2017, 10(8), 915; https://doi.org/10.3390/ma10080915

Short-Term Behavior of Slag Concretes Exposed to a Real In Situ Mediterranean Climate Environment

1
Departamento de Ingeniería Civil, Universidad de Alicante, Ap. Correos 99, 03080 Alacant/Alicante, Spain
2
Grupo ENCOMAT, Escola de Enxeñaría Industrial, Universidade de Vigo, Campus Universitario, 36310 Vigo, Spain
*
Author to whom correspondence should be addressed.
Received: 22 July 2017 / Revised: 2 August 2017 / Accepted: 4 August 2017 / Published: 8 August 2017
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Abstract

At present, one of the most suitable ways to get a more sustainable cement industry is to reduce the CO2 emissions generated during cement production. In order to reach that goal, the use of ground granulated blast-furnace slag as clinker replacement is becoming increasingly popular. Although the effects of this addition in the properties of cementitious materials are influenced by their hardening conditions, there are not too many experimental studies in which slag concretes have been exposed to real in situ environments. Then, the main objective of this research is to study the short-term effects of exposure to real Mediterranean climate environment of an urban site, where the action of airborne chlorides from sea water and the presence of CO2 are combined, in the microstructure and service properties of a commercial slag cement concrete, compared to ordinary Portland cement (OPC). The microstructure was studied with mercury intrusion porosimetry. The effective porosity, capillary suction coefficient, chloride migration coefficient, carbonation front depth, and compressive strength were also analyzed. Considering the results obtained, slag concretes exposed to a real in situ Mediterranean climate environment show good service properties in the short-term (180 days), in comparison with OPC. View Full-Text
Keywords: ground granulated blast-furnace slag; sustainability; real condition exposure; Mediterranean climate environment; curing; temperature; relative humidity; ordinary Portland cement ground granulated blast-furnace slag; sustainability; real condition exposure; Mediterranean climate environment; curing; temperature; relative humidity; ordinary Portland cement
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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. (CC BY 4.0).
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Ortega, J.M.; Sánchez, I.; Cabeza, M.; Climent, M.Á. Short-Term Behavior of Slag Concretes Exposed to a Real In Situ Mediterranean Climate Environment. Materials 2017, 10, 915.

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