Repositorio UFRO · Omeka S

Effect of a New Additive Based on Textile Fibres from End-of-Life Tyres (ELT) on the Mechanical Properties of Stone Mastic Asphalt

Primer Autor	Calabi-Floody, Alejandra
Co-autores	Valdes-Vidal, Gonzalo Mignolet-Garrido, Cristian Diaz-Montecinos, Cristian
Título	Effect of a New Additive Based on Textile Fibres from End-of-Life Tyres (ELT) on the Mechanical Properties of Stone Mastic Asphalt
Editorial	MDPI
Revista	POLYMERS
Lenguaje	en
Resumen	Stone Mastic Asphalts (SMA) are asphalt mixes with discontinuous granulometry and a high content of asphalt binder. In order to prevent draindown of the asphalt binder and ensure good performance, these mixes must be strengthened with cellulose or mineral fibres and/or polymer additives. This study was designed to evaluate the effect of a granular additive based on waste tyre textile fibres (WTTF), developed as a replacement for cellulose commercial additives in SMA mixes. Use of the WTTF-based additive will encourage the development of sustainable mixes by recycling a by-product of end-of-life tyres (ELT), which currently constitute a major environmental problem around the world. To this end, in the present experimental study we evaluated the replacement of cellulose-based commercial fibre with different percentages of WTTF-based additive (0%, 50%, 75%, 100%) in an SMA asphalt mix. The following design and performance properties were evaluated: resistance to cracking, stiffness modulus, sensitivity to moisture, and resistance to permanent deformation. The results indicated that replacing 100% of the cellulose commercial additive in the SMA mix by the WTTF-based additive allowed the mix to meet its design properties and showed good performance in the mechanical properties evaluated, with behaviour similar to that of the reference SMA mix.
Fecha Publicación	2023
Tipo de Recurso	artículo original
doi	10.3390/polym15071705
Formato Recurso	PDF
Palabras Claves	stone mastic asphalt (SMA) end-of-life tyres (ELT) ELT-based additive (WTTF) cellulose fibre performance properties
Ubicación del archivo	http://dx.doi.org/10.3390/polym15071705
Categoría OCDE	Ciencia de los polímeros
Materias	masilla asfáltica de piedra (SMA) neumáticos al final de su vida útil (ELT) Aditivo basado en ELT (WTTF) fibra de celulosa propiedades de rendimiento
Identificador del recurso (Mandatado-único)	artículo original
Versión del recurso (Recomendado-único)	versión publicada
License	CC BY 4.0
Condición de la licencia (Recomendado-repetible)	CC BY 4.0
Derechos de acceso	acceso abierto
Access Rights	acceso abierto
Id de Web of Science	WOS:000969719500001
Tipo de ruta	verde# dorado
Categoría WOS	Ciencia de los polímeros
Referencia del Financiador (Mandatado si es aplicable-repetible)	ANID-FONDEF ID20I10160 ANID FONDEF ID20I10160