Informador Técnico
ISSN: 2256-5035 (Electrónico)
ISSN: 0122-056X (Impreso)
Formato: Electrónico / Acceso Abierto
Frecuencia: Números Semestrales
Revisión por Pares: Doble Ciego
Palabras clave
self-compacting concrete
fly ash
slag
self-compactability
fresh properties concreto autocompactante
ceniza volante
escoria
auto-compactabilidad
propiedades en estado fresco
fly ash
slag
self-compactability
fresh properties concreto autocompactante
ceniza volante
escoria
auto-compactabilidad
propiedades en estado fresco
Cómo citar
Silva Urrego, Y. F., Valencia Saavedra, W. G., & Delvasto Arjona, S. (2018). Concreto autocompactante con altos contenidos de subproductos de la combustión de carbón. Informador Técnico, 82(2), 147–159. https://doi.org/10.23850/22565035.1485
Resumen
El concreto autocompactante (CAC) se ha considerado como un gran logro en la tecnología del concreto debido a sus grandes ventajas como la auto-compactabilidad. Para tener esta propiedad el concreto fresco debe demostrar una alta fluidez, resistencia a la segregación y una buena cohesión. Con el propósito de evaluar estas propiedades, además de utilizar un subproducto de la combustión del carbón como la ceniza volante (CV) y la escoria de parrilla (E) se prepararon varias mezclas de concreto autocompactante remplazando el cemento en un 35% y 50% de cada una de estas adiciones. A los cuales se les evaluaron sus propiedades, tanto en estado fresco como en endurecido, las propiedades en estado fresco fueron evaluadas mediante el flujo de asentamiento, el embudo en V y la caja en L, en estado endurecido se evaluaron propiedades mecánicas (resistencia a la compresión, tracción indirecta y flexión) y de permeabilidad (succión capilar, absorción y porosidad y resistencia a cloruros). Todos los CAC mostraron buenas
propiedades en estado fresco y desarrollaron a los 28 días de curado resistencias a la compresión en un rango de 34 y 48 MPa. Los resultados muestran que el empleo de subproductos de la combustión del carbón pueden ser incorporados en la elaboración de CAC.
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