Dense fraction of sugarcane bagasse ash as fine aggregate: influence on the compressive strength and absorption of mortars

Authors

DOI:

https://doi.org/10.46421/enarc.v9i1.6981

Keywords:

Sugarcane bagasse ash, Artificial sand, Densimetric fractionation, Compressive strength, Packing density

Abstract

This study investigated the potential of the dense fraction of sugarcane bagasse ash as a fine aggregate, focusing on its production and performance in 30 MPa mortar. For this purpose, a wet separation method was developed, enabling the segregation of boiler ash into dense and light fractions. Subsequently, the ash-derived sand was compared to natural quartz sand, with an assessment of the impact of controlled particle size distribution on compressive strength, water absorption, and mortar packing. The results indicated that mortars with 100% replacement of natural sand by ash sand showed the highest compressive strength values, with increases of 23% at 28 days and 41% at 120 days compared to the reference. The packing and water absorption results supported the significant improvement in mortar compressive strength.

Author Biographies

Mayara Lopes Souza de Castro Maciel, Universidade Estadual do Norte Fluminense Darcy Ribeiro

She has been a master's student in the Postgraduate Program in Civil Engineering at UENF since 2022. She has a degree in Civil Engineering from Estácio de Sá University (2017).

Guilherme Chagas Cordeiro, Universidade Estadual do Norte Fluminense Darcy Ribeiro

Dr. Guilherme Cordeiro completed his D.Sc. in Civil Engineering by the Alberto Luiz Coimbra Institute for Graduate Studies and Research in Engineering, Federal University of Rio de Janeiro (COPPE/UFRJ) in 2006. Since 2007, Dr. Cordeiro has been an Associate Professor at the Civil Engineering Laboratory of the Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF), where coordinated the Graduate Program in Civil Engineering between 2018 and 2020. He was a visiting scholar fellowship (CNPq Science without Borders Program) at the Georgia Institute of Technology (School of Civil and Environmental Engineering) under supervison of Kimberly Kurtis. He has a Research Productivity Grant from CNPq. He is Senior Scientist of the FAPERJ since 2015. 

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Published

2025-08-11

How to Cite

Maciel, M. L. S. de C., & Cordeiro, G. C. (2025). Dense fraction of sugarcane bagasse ash as fine aggregate: influence on the compressive strength and absorption of mortars. ENCONTRO NACIONAL DE APROVEITAMENTO DE RESÍDUOS NA CONSTRUÇÃO, 9(1), 1.6. https://doi.org/10.46421/enarc.v9i1.6981

Issue

Vol. 9 No. 1 (2025): IX ENCONTRO NACIONAL DE APROVEITAMENTO DE RESÍDUOS NA CONSTRUÇÃO

Section

Aproveitamento de Resíduos