Incorporation of Nanochitin in Cement Mortars: An Approach to Enhancing Durability and Sustainability

Incorporation of Nanochitin in Cement Mortars: An Approach to Enhancing Durability and Sustainability

Abstract This study explores the use of nanochitin extracted from crab shell waste to enhance the mechanical and durability properties of cement-based mortars. Nanochitin, a biopolymer derived from chitin, has been identified as a promising nanomaterial additive that improves compressive strength, c...

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Autor principal: Alvansazyazdi, Mohammadfarid (author)
Otros Autores: Logacho-Morales, Andrea Estefanía (author), Molina-Freire, Wilson Steven (author), Santamaría-Carrera, Jorge Luis (author), Cadena-Perugachi, Hugo Alexander (author), Bonilla-Valladares, Pablo Mauricio (author), Lascano-Robalino, Natali Elizabeth (author), Bucheli-García, Jorge Alexander (author), Soledispa-Pereira, Edwin Iván (author), Crespo-Bravo, Jorge Oswaldo (author), Espinoza-Cotera, Angel Mauricio (author), Martial-Debut, Alexis Patrice (author), Heredia-Ayala, Byron Giovanoli (author), Tapia-Vargas, Jhon Fabricio (author)
Formato: article
Lenguaje:eng
Publicado: 2025
Materias:
Nanochitin
mortar
internal cohesion
rheology
sustainability
nanoquitosano
mortero
cohesión interna
reología
sostenibilidad
Acceso en línea:https://revistadigital.uce.edu.ec/index.php/RevFIG/article/view/7946
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Sumario:Abstract This study explores the use of nanochitin extracted from crab shell waste to enhance the mechanical and durability properties of cement-based mortars. Nanochitin, a biopolymer derived from chitin, has been identified as a promising nanomaterial additive that improves compressive strength, cohesion, and workability of cementitious composites. The methodology involved the synthesis, characterization, and incorporation of nanochitin in mortars using Type N and Type HS cements. The mechanical performance was evaluated through uniaxial compression tests, permeability analysis, and microstructural characterization via Scanning Electron Microscopy (SEM) and X-ray Diffraction (XRD). The results indicate that nanochitin enhances hydration, contributing to an optimized cementitious matrix. The modified mortars exhibited higher compressive strength, reaching 9.18 MPa at 90 days in Type N cement. Furthermore, nanochitin demonstrated superior rheological properties, allowing for improved workability and water retention, particularly in arid environments. This study highlights the sustainability benefits of repurposing crab shell waste, aligning with circular economy principles and advancing the development of eco-friendly construction materials.

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