Repositorio
Institucional

Ortega, Jose Marcos

Letelier, Viviana#Tarela, Ester#Munoz, Pedro#Henriquez-Jara, Bastian I.#Moriconi, Giacomo

Mechanical Performance of Eco-Friendly Concretes with Volcanic Powder and Recycled Concrete Aggregates

MDPI

SUSTAINABILITY

en

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%.

Artículo original

"The research included in the paper has been financially supported by project DI17-0013, ""Analisis del efecto de la trituracionen el comportamiento del polvo de vidriocomoreemplazo de cemento"", funded by the Universidad de La Frontera (Chile)."

"La investigación incluida en el artículo ha contado con el apoyo financiero del proyecto DI17-0013, ""Análisis del efecto de la trituracionen el comportamiento del polvo de vidriocomoreemplazo de cemento"", financiado por la Universidad de La Frontera (Chile).

The research included in the paper has been financially supported by project DI17-0013, ""Analisis del efecto de la trituracionen el comportamiento del polvo de vidriocomoreemplazo de cemento"", funded by the Universidad de La Frontera (Chile)."

10.3390/su10093036

pdf

volcanic powder# recycled aggregates# eco-friendly concrete# sustainability# mechanical performance# Young's modulus

http://dx.doi.org/10.3390/su10093036

Green & Sustainable Science & Technology# Environmental Sciences# Environmental Studies

polvo volcánico# áridos reciclados# hormigón ecológico# sostenibilidad# desempeño mecánico# módulo de Young

Ingeniería Civil

Ingeniería de los Materiales

Ciencias del Medio Ambiente

WOS:000446770200079

Mechanical Performance of Eco-Friendly Concretes with Volcanic Powder and Recycled Concrete Aggregates

Artículo original

version publicada

MDPI

SUSTAINABILITY

Ciencia y tecnología verdes y sostenibles# Ciencias Ambientales# Estudios Ambientales

en

UFRO DI17-0013

"The research included in the paper has been financially supported by project DI17-0013, ""Analisis del efecto de la trituracionen el comportamiento del polvo de vidriocomoreemplazo de cemento"", funded by the Universidad de La Frontera (Chile)."

pdf

dorada#verde

acceso abierto

acceso abierto

CC BY

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