English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/121956
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Use of barium carbonate to inhibit sulfate attack in cements

AutorCarmona-Quiroga, Paula María ; Blanco Varela, M.T.
Palabras claveSulfate attack
Sulfate resistant cements
Fecha de publicaciónmar-2015
CitaciónCement and Concrete Research: Volume 69, Pages 96–104, (2015)
ResumenThe present study aims to explore a new approach to producing sulfate-resistant cements by the addition of BaCO3 to clinker, capitalising on the capacity of Ba to immobilise sulfates in the form of highly insoluble barite (BaSO4). The study conducted on white clinker pastes and mortars with 10 and 15 wt.% BaCO3, analysed the effect of the addition on the durability of materials exposed to external sulfate attack (4 wt.% Na2SO4 for 5 months at 21 °C), as well as on their mineralogy and microstructure. The promising findings show that the presence of BaCO3 improves sulfate resistance by inhibiting ettringite growth. The mortars prepared with high C3A clinker, sand with no fines (to favour the attack) and 15 wt.% BaCO3 remained practically unaltered after 5 months in contact with the aggressive solution, whereas the control mortars (clinker + 15 wt.% gypsum) underwent severe deterioration after only 5 weeks.
Versión del editordoi:10.1016/j.cemconres.2014.12.006
Aparece en las colecciones: (IETCC) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Torroja_03.pdf657,63 kBAdobe PDFVista previa
Mostrar el registro completo

NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.