Analysis of the bearing capacity of unbound granular mixtures with rubber particles from scrap tyres when used as sub-ballast

  1. C. Hidalgo-Signes
  2. P. Martínez-Fernández
  3. J. Garzón-Roca
  4. R. Insa-Franco
Revista:
Materiales de construcción

ISSN: 0465-2746

Año de publicación: 2016

Volumen: 66

Número: 324

Tipo: Artículo

DOI: 10.3989/MC.2016.11515 DIALNET GOOGLE SCHOLAR lock_openAcceso abierto editor

Otras publicaciones en: Materiales de construcción

Resumen

Los neumáticos fuera de uso son un material de desecho problemático. Para poder reutilizarlos en grandes cantidades, el artículo se centra en el análisis de mezclas granulares sin ligante con un porcentaje variables de partículas de caucho, y su uso como capa de subbalasto ferroviario. La capacidad de soporte de dichas mezclas se estudia mediante ensayos de laboratorio y de campo (ensayos de placa de carga estática y dinámica, y ensayos triaxiales cíclicos). Se evalúa la influencia del contenido de caucho en cada caso. Se ha observado que, a mayor contenido en caucho, se incrementa la deformación permanente y resiliente, y que ninguna de las mezclas experimenta fluencia plástica tras 2,5 millones de ciclos de carga. Considerando los requisitos habituales de capacidad de soporte, el contenido óptimo de caucho es 2,5% en términos de peso. Este porcentaje incrementa la resistencia a la degradación al tiempo que asegura una capacidad de soporte suficiente

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Fuente de los datos: Dialnet