Estimation of CO2 emissions from concrete with glass waste

Date
Journal Title
Journal ISSN
Volume Title
Publisher
Politécnico Colombiano Jaime Isaza Cadavid
Date
2022-04-28
Abstract
Description
Interest to include waste glass in concrete can be ascribed to the growing need for waste disposal, as well as to minimise traditional raw material usage in concrete preparation. Glass waste has a direct effect on the properties in a fresh and hardened state, however, there are few reports that account for its effect on CO2 emissions. In this paper, a review of different reports that incorporate glass waste in replacement of aggregates or cement is presented and the estimation of CO2 emissions was made. The results show that the replacement of cement by glass waste generates a positive effect on strength and decreases carbon dioxide emissions, being greater the greater the cement replacement, a 22% reduction in CO2 emissions was found for a 20% replacement.
El interés de incluir residuos de vidrio en el hormigón se atribuye a la creciente necesidad para su disposición, además de minimizar el uso de las materias primas empleadas en la preparación del concreto tradicional. Los residuos de vidrio, tienen un efecto sobre las propiedades en estado fresco y endurecido, sin embargo, son escasos los reportes que dan cuenta de su efecto en las emisiones de CO2. En este trabajo, se presenta una revisión de diferentes reportes que incorporan residuos de vidrio en reemplazo de los agregados o el cemento y se realizó la estimación de las emisiones de CO2. Los resultados muestran que el reemplazo de cemento por residuos de vidrio genera un efecto positivo sobre la resistencia y disminuye las emisiones de CO2, siendo mayor cuanto mayor es el reemplazo de cemento, se encontró una reducción del 22% en las emisiones para un 20% de reemplazo. Interest to include waste glass in concrete can be ascribed to the growing need for waste disposal, as well as to minimize traditional raw material usage in concrete preparation. Glass waste has a direct effect on the properties in a fresh and hardened state; however, there are few reports that account for its effect on CO2 emissions. In this paper, a review of different reports that incorporate glass waste in replacement of aggregates or cement is presented and the estimation of CO2 emissions was made. The results show that the replacement of cement by glass waste generates a positive effect on strength and decreases carbon dioxide emissions, being greater the greater the cement replacement, a 20% reduction in CO2 emissions was found for a 20% replacement.
Titulo del recurso fuente
Keywords
Glass waste; CO2 emissions; Environmental impact; Sustainable development; Waste management., Residuos de vidrio, Emisiones de CO2, Impacto medioambiental, Desarrollo sostenible, Gestión de residuos
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