Green concrete made from biomass waste and glass waste

The improvement in the physical characteristics of green concrete, as well as the environmental benefits of the innovative use of RHA (rice husk ash) as a cement replacement motivate further study in concrete manufacturing. The fresh and hardened properties of traditional concrete show significant improvement with the inclusion of WG glass residues. In this work, cylindrical specimens with dimensions of 0.1 m in diameter and 0.2 m in height were prepared. The fresh (depression) and hardened (density and compressive strength) properties were studied. Modified concretes were prepared with replacements of 5% of calcined rice husk and with the incorporation of glass residues replacing the cement. Different rice ashes were prepared: residual glass mass ratio 1: 0, 1: 1, 1: 2 and 1: 3. According to the experimental results, the fall of the concrete mixture increased with an increase in glass waste, in fact, glass waste has a lower water absorption, this may be the reason for better workability results. Additionally, the experimental results showed that the incorporation of glass residues in concrete prepared with rice ash is not related to the final density of concrete specimens due to the similar density between cementitious materials. The compressive strength of concrete shows a significant difference with the inclusion of waste glass. The 1:3 sample was the optimal concrete mixture. This compressive strength was observed up to 15%. The experimental results show that the addition of waste glass to the concrete mixture prepared with rice ash improves mechanical properties and may be a potential option to mitigate the impact of municipal biomass waste.

• Autores: Carvajal Jaramillo, Jeferson; Rúa Suarez, Andrés Felipe; Lasso Ceron, Cristian Arley
• Tipo de recurso: Trabajo de grado de pregrado
• Fecha de publicación: 2022
• Institución: Universidad Cooperativa de Colombia
• Repositorio: Repositorio UCC
• OAI Identifier: oai:repository.ucc.edu.co:20.500.12494/46283
• Acceso en línea: https://hdl.handle.net/20.500.12494/46283
• Palabra clave: Concreto verde; Cascarilla de arroz; Residuos de vidrio; Biomasa; Emisiones de CO2; TG 2022 ICI 46283; Green concrete; Rice husk; Glass waste; Biomass; CO2 emissions
• Rights: openAccess
• License: Atribución – No comercial – Sin Derivar