Estudio de la aplicabilidad de cenizas volantes de combustión de orujillo y de geosilex en materiales de construcción sostenibles
Fecha
2018-09-03
Autores
Título de la revista
ISSN de la revista
Título del volumen
Editor
Jaén: Universidad de Jaén
Resumen
El objetivo principal de este Trabajo Fin de Grado (TFG) es estudiar la aplicabilidad de las cenizas volantes de orujillo (CV) y Geosilex (GX) como sustitutos parciales del cemento Portland (CP) en la fabricación de morteros de cemento. Se ha evaluado el efecto de la adición de diferentes proporciones de residuos (20-60 % en peso) en función de la relación CV/GX (1:1 y 2:1) y del tiempo de curado (7 y 28 días). Los resultados indican que la sustitución de cantidades crecientes de residuos CV y GX para las relaciones CV/GX=1:1 y CV/GX=2:1 por CP produce un descenso en la densidad aparente, la resistencia a compresión y a flexión, aumentando la absorción de agua por capilaridad. No obstante, los morteros que incorporan el 20 % y el 40 % de residuos para una relación CV/GX=1:1 presentan propiedades físicas y mecánicas adecuadas consiguiendo con su fabricación importantes beneficios ambientales.
The main objective of this study is to analizethe use of fly ash (CV), from combustion of olive pomace and Geosilex (GX) as partial substitutes of Portland concrete (PC) in the manufacture of concrete blocks. The effect of the addition of different proportions of wastes (20-60% wt) the ratio of CV / GX (1:1 and 2:1) and the curing time (7 and 28 days), on the final properties was evaluated. The results indicate that the substitution of increasing quantities of CV and GX for the CV / GX = 1: 1 and CV / GX = 2: 1 by PC results in a decrease in bulk density , compressive and flexion strength, increasing water absorption by capillarity. However, the mortars that incorporate 20 wt % and 40 wt % of residues for a CV / GX = 1: 1 ratio have adequate physical and mechanical properties, achieving important environmental benefits with their manufacture.
The main objective of this study is to analizethe use of fly ash (CV), from combustion of olive pomace and Geosilex (GX) as partial substitutes of Portland concrete (PC) in the manufacture of concrete blocks. The effect of the addition of different proportions of wastes (20-60% wt) the ratio of CV / GX (1:1 and 2:1) and the curing time (7 and 28 days), on the final properties was evaluated. The results indicate that the substitution of increasing quantities of CV and GX for the CV / GX = 1: 1 and CV / GX = 2: 1 by PC results in a decrease in bulk density , compressive and flexion strength, increasing water absorption by capillarity. However, the mortars that incorporate 20 wt % and 40 wt % of residues for a CV / GX = 1: 1 ratio have adequate physical and mechanical properties, achieving important environmental benefits with their manufacture.