Resumo

RUA SUAREZ, Andrés Felipe; CARVAJAL JARAMILLO, Jeferson; LASSO CERON, Cristian Arley  e  ARBELAEZ PEREZ, Oscar Felipe. Production of green concrete using rice husk ash and glass waste as substitutes for cement. Rev. ion [online]. 2022, vol.35, n.2, pp.101-109.  Epub 25-Abr-2023. ISSN 0120-100X.  https://doi.org/10.18273/revion.v35n2-2022008.

This paper reports the effect of incorporation of waste glass (WG) on the properties of concrete containing rice husk ash (RHA) as partial replacement of cement. Different RHA:WG mass ratio 1:0, 1:1, 1:2 and 1:3 (RHA + WG = 5 %) were prepared. The slump, compressive strength and CO2 emissions were evaluated. The experimental results showed that the slump was gradually increased as the replacement level of rice husk ash by waste glass was increased. The incorporation of waste glass increases the compressive strength, being RHA:WG 1:3 the mixture that showed the highest compressive strength. Additionally, with the substitution of 5 % of cement by rice husk ash and waste glass, it is possible to reduce the emission of carbon dioxide. Based on this study, it can be concluded that the concrete mixtures incorporating RHA and WG will not only relieve the environmental burden but also result into a more sustainable and economical construction.

Palavras-chave : Rice husk ash; Waste glass; Thermal conductivity; CO ₂ emissions; Pozzolans.

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