EFFECT OF MAGUEY SAWDUST AND SUGARCANE BAGASSE ASH ON THE FHYSICO-MECHANICAL PROPERTIES OF MORTARPages 8-21
Abstract
This study assessed the influence of maguey sawdust (MS) and sugarcane bagasse ash (SCBA) on the physico-mechanical properties of mortar through a 3×3 factorial design with a control group. MS (5–15%) and SCBA (2–6%) were incorporated as partial cement replacements. Results showed statistically significant improvements (p < 0.001) across all variables. Bulk density increased to over 2630 kg/m³, while porosity and total water absorption decreased to 9% and below 4.0%, respectively. Mechanically, compressive strength reached a maximum of 21.1 MPa, and bond strength rose to 0.36 MPa both outperforming the control group (17.3 MPa and 0.26 MPa). ANOVA, Tukey, and Dunnett tests confirmed the individual and interactive significance of the additives. The synergistic effect of MS and SCBA enhanced microstructural compactness, reduced voids, and improved the paste–substrate interface without compromising cohesion. These findings support the technical and environmental viability of using MS and SCBA in mortar production, offering a sustainable alternative aligned with Sustainable Development Goals (SDGs 9 and 12). Their implementation contributes to the valorization of agro-industrial residues and to lowering the environmental footprint of the construction sector.
Keywords:
Mortar,
Maguey sawdust,
Sugarcane bagasse ash,
Mechanical strength,
Sustainability.
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Jinmer Bravo Apaza, 
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