CENIZAS DE CÁSCARA DE ARROZ Y GEOSILEX COMO MATERIA PRIMA DE BLOQUES SILICO-CALCAREOS SOSTENIBLES
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2019-07-25
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Jaén: Universidad de Jaén
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El objetivo de este Trabajo Fin de Grado es obtener materiales de construcción sostenibles, bloques sílico-calcáreos empleando como materia prima, dos residuos, cenizas de cáscara de arroz (CCA) y Geosilex (G), una cal procedente de residuos de la industria del acetileno. Los bloques fueron conformados mezclando distintas proporciones de los residuos desde el 20 al 80 % en peso de cada materia prima, aplicando una presión de 10 MPa y posterior curado en agua durante 28 días. Los resultados indican que la densidad aparente, la resistencia a flexión, la resistencia a compresión y la conductividad térmica aumentan casi linealmente al incrementar el contenido en el residuo GeoSilex, dando lugar a bloques más pesados, más resistentes pero menos aislantes. Los bloques que contienen un 50 % de CCA y un 50 % de G son los que presentan un mejor balance de las propiedades físicas, mecánicas y térmicas
The objective of this Final Degree Project is to obtain sustainable construction materials, silica-calcareous blocks using as raw material, two residues, rice husk ash (CCA) and Geosilex (G), a lime from waste from the industry's acetylene. The blocks were formed by mixing different proportions of the residues from 20 to 80 wt % of each raw material, applying a pressure of 10 MPa and subsequent curing in water for 28 days. The results indicate that the bulk density, flexural strength, compressive strength and thermal conductivity increase almost linearly as the content in the GeoSilex residue increases, giving rise to denser, more resistant but less insulating blocks. The blocks containing 50 wt % CCA and 50 wt % G are the ones that have a better balance of physical, mechanical and thermal properties
The objective of this Final Degree Project is to obtain sustainable construction materials, silica-calcareous blocks using as raw material, two residues, rice husk ash (CCA) and Geosilex (G), a lime from waste from the industry's acetylene. The blocks were formed by mixing different proportions of the residues from 20 to 80 wt % of each raw material, applying a pressure of 10 MPa and subsequent curing in water for 28 days. The results indicate that the bulk density, flexural strength, compressive strength and thermal conductivity increase almost linearly as the content in the GeoSilex residue increases, giving rise to denser, more resistant but less insulating blocks. The blocks containing 50 wt % CCA and 50 wt % G are the ones that have a better balance of physical, mechanical and thermal properties