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New unreacted-core model to predict pyrrhotite oxidation in concrete dams

Autor
Oliveira , I.; Pialarissi Cavalaro, S.H.; Aguado, A.
Tipus d'activitat
Article en revista
Revista
Journal of materials in civil engineering
Data de publicació
2013-03
Volum
25
Número
3
Pàgina inicial
372
Pàgina final
381
DOI
https://doi.org/10.1061/(ASCE)MT.1943-5533.0000531 Obrir en finestra nova
URL
http://dx.doi.org/10.1061/(ASCE)MT.1943-5533.0000531 Obrir en finestra nova
Resum
Pyrites and pyrrhotites are the most abundant minerals of the iron sulfide group in nature and may be found in the aggregates used to produce concrete. In the presence of water and oxygen, such compounds generate expansive reactions that may have severe structural damages. This is especially critical in concrete dams, given the large volume of material used and the restrictions in movement imposed by the surroundings. In these cases, the definition of adequate rehabilitation programs depends on ...
Paraules clau
Concrete dam, Expansion, Pyrrhotite, Sulfate attack, Unreacted-core model
Grup de recerca
EC - Enginyeria de la Construcció

Participants