Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/80165
Type: Artigo de Periódico
Title: Feasibility of using sugar cane bagasse ash in partial replacement of portland cement clinker
Authors: Sâmara França
Leila Nóbrega Sousa
Sérgio Luiz Costa Saraiva
Maria Cecília Novaes Firmo Ferreira
Marcos Vinicio de Moura Solar Silva
Romero César Gomes
Conrado de Souza Rodrigues
Maria Teresa Paulino Aguilar
Augusto Cesar da Silva Bezerra
Abstract: This work presents a technical and economic study using sugar cane bagasse ash (SCBA) to partially replace Portland cement clinker. To evaluate the technical viability, the replacement rates of 10, 20, and 30% of Portland cement were used in the experiments. The ashes used were in the following conditions: (i) as collected (AC), (ii) ground (G), and (iii) re-burnt and ground (RG). Three composition parameters were used in the mortar mix procedures: (i) mix with water factor/fixed binder in volume, (ii) mix with water factor/fixed binder in weight, and (iii) mix with the fixed flow. After the technical feasibility analysis, the benefit of the substitutions and an analysis of the relationship between cement consumption and the acquired compressive strength, correlating with possible economic costs, were discussed. SCBA AC was not suitable for the partial replacement of Portland cement clinker. SCBA G presented a satisfactory performance and SCBA RG was the ash that presented the best performance in the partial replacement of Portland cement clinker. For the same levels of compressive strength, the consumption of Portland cement per cubic meter of concrete reduced; from this, the cost of concrete and mortar could be reduced by 8%, with the ash having the same value as cement. Furthermore, the use of SCBA RG at 30% inhibited the alkali–silica reaction (ASR) in concretes with a reactive basalt and quartzite aggregate. SCBA G (20 and 30%) and SCBA RG (10 and 20%) inhibited the ASR in concretes with a reactive basalt aggregate and reduced the expandability in concretes with a reactive quartzite aggregate. Another point to highlight was the durability shown by the cements with SCBA, which, 900 days after the accelerated test of expansion by the alkali–aggregate reaction, maintained high levels of flexural strength when compared to the results obtained before the accelerated test of expansion. The present work concluded that using sugar cane bagasse ash to replace Portland cement is feasible from a technical, environmental, and economic perspective.
Subject: Sustentabilidade
Cimento Portland
Bagaço de cana
language: eng
metadata.dc.publisher.country: Brasil
Publisher: Universidade Federal de Minas Gerais
Publisher Initials: UFMG
metadata.dc.publisher.department: ENG - DEPARTAMENTO DE ENGENHARIA MATERIAIS E DA CONSTRUÇÃO CIVIL
Rights: Acesso Aberto
metadata.dc.identifier.doi: https://doi.org/10.3390/buildings13040843
URI: http://hdl.handle.net/1843/80165
Issue Date: 23-Mar-2023
metadata.dc.url.externa: https://www.mdpi.com/2075-5309/13/4/843
metadata.dc.relation.ispartof: Buildings
Appears in Collections:Artigo de Periódico



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