Author(s)
Romário Moreira Siqueira, Bruna Sthefanie Paz de Souza, Jonas Alexandre, Aline Chaves Intorne, Edmilson José Maria, Sergio Neves Monteiro
Abstract
In the pursuit of sustainable and durable construction materials, researchers have explored the incorporation of ginger and ornamental rock waste into cement mortars. This innovative approach aims to enhance the antimicrobial properties of concrete, addressing both environmental concerns and structural longevity.
The study involved integrating ginger waste, rich in bioactive compounds like gingerol and shogaol, with ornamental rock and limestone waste into cementitious mortars. These additions not only repurpose industrial by-products but also imbue the mortar with antimicrobial characteristics.
Advanced analytical techniques, including scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), and X-ray diffraction (XRD), confirmed the compatibility and beneficial interactions of these materials within the cement matrix.Mechanical testing revealed that the modified mortars exhibited improved flexural and compressive strengths compared to conventional formulations.
Furthermore, microbiological assessments demonstrated a significant reduction in microbial colonisation, indicating the effectiveness of the antimicrobial coating imparted by the ginger constituents. Specifically, bacterial colony counts decreased from 4 × 10² to 1 × 10² CFU/mL, showcasing the potential of this antimicrobial mortar in inhibiting pathogenic growth.
This approach not only enhances the performance and durability of construction materials but also promotes the sustainable utilisation of waste products. By transforming industrial and agricultural residues into valuable components of antimicrobial concrete, the construction industry can move towards more eco-friendly and health-conscious building practices.
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