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Evolution of pyrrhotite oxidation in aggregates for concrete

Autor
Oliveira , I.; Pialarissi Cavalaro, S.H.; Aguado, A.
Tipus d'activitat
Article en revista
Revista
Materiales de construcción (Madrid)
Data de publicació
2014-11-17
Volum
64
Número
316
DOI
https://doi.org/10.3989/mc.2014.08413 Obrir en finestra nova
Repositori
http://hdl.handle.net/2117/24782 Obrir en finestra nova
URL
http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/1670 Obrir en finestra nova
Resum
Rocks containing pyrrhotite bands are sometimes used to produce concrete. These rocks oxidize and produce long-term expansive reactions that damage concrete structures, leading to important economic and risk related repercussions. The present study analyses several aspects that affect the oxidation process of the aggregate such as the existence of preferential paths for the entrance of the oxidizing agent and the conversion process of the chemical elements involved in the reaction. For that, hos...
Citació
Oliveira , I.; Pialarissi Cavalaro, S.H.; Aguado, A. Evolution of pyrrhotite oxidation in aggregates for concrete. "Materiales de construcción (Madrid)", 17 Novembre 2014, vol. 64, núm. 316.
Paraules clau
Aggregate, Dam, Internal sulfate attack, Iron sulfide, Oxidation
Grup de recerca
EC - Enginyeria de la Construcció

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