Mechanical Performance of Eco-Friendly Concretes with Volcanic Powder and Recycled Concrete Aggregates
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Título: | Mechanical Performance of Eco-Friendly Concretes with Volcanic Powder and Recycled Concrete Aggregates |
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Autor/es: | Letelier, Viviana | Ortega, José Marcos | Tarela, Ester | Muñoz, Pedro | Henríquez-Jara, Bastián I. | Moriconi, Giacomo |
Grupo/s de investigación o GITE: | Durabilidad de Materiales y Construcciones en Ingeniería y Arquitectura |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Ingeniería Civil |
Palabras clave: | Volcanic powder | Recycled aggregates | Eco-friendly concrete | Sustainability | Mechanical performance | Young’s modulus |
Área/s de conocimiento: | Ingeniería de la Construcción |
Fecha de publicación: | 27-ago-2018 |
Editor: | MDPI |
Cita bibliográfica: | Letelier V, Ortega JM, Tarela E, Muñoz P, Henríquez-Jara BI, Moriconi G. Mechanical Performance of Eco-Friendly Concretes with Volcanic Powder and Recycled Concrete Aggregates. Sustainability. 2018; 10(9):3036. doi:10.3390/su10093036 |
Resumen: | At present, reducing the environmental impact of the construction industry is a major subject of study. In terms of the use of recycled concrete aggregates (RCA), most recently conducted studies have shown that the use of a limited percentage of those aggregates does not significantly affect the properties of concretes. This work analysed the mechanical properties of medium-strength concretes with a high contribution to sustainability, where cement and natural coarse aggregates (NCA) were partially replaced by volcanic powder (VP) and RCA, respectively. Three mixing ratios of VP replacement were tested in concretes without RCA and concretes with 30% RCA replacing NCA. Results show that when VP is used without RCA, up to 10% of the cement can be replaced by VP without a significant loss in the mechanical properties. When a combination of 5% VP and 30% RCA is used, the weakness of the recycled concrete is strengthened, obtaining stronger concretes than a control concrete with no recycled materials. Finally, the greenhouse gas assessment showed that the simultaneous incorporation of VP and RCA reduces CO2 emissions produced in the manufacture of concrete by up to 13.6%. |
Patrocinador/es: | The research included in the paper has been financially supported by project DI17-0013, “Análisis del efecto de la trituración en el comportamiento del polvo de vidrio como reemplazo de cemento”, funded by the Universidad de La Frontera (Chile). |
URI: | http://hdl.handle.net/10045/78411 |
ISSN: | 2071-1050 |
DOI: | 10.3390/su10093036 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.3390/su10093036 |
Aparece en las colecciones: | INV - DMCIA - Artículos de Revistas |
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