Improvement of compatibility and stability on polyethylene-modified bitumen by use of an aromatic extra as compatibilizer.

Viñas Sánchez, María Teresa; Paez, Antonio y Sánchez Caba, Jesús (2012). Improvement of compatibility and stability on polyethylene-modified bitumen by use of an aromatic extra as compatibilizer.. En: "5th Euroasphalt and Eurobitume Congress 2012", 13/06/2012 - 15/06/2012, Estambul (Turquía). ISBN 978-972-8692-45-2. pp. 116-125.

Descripción

Título: Improvement of compatibility and stability on polyethylene-modified bitumen by use of an aromatic extra as compatibilizer.
Autor/es:
  • Viñas Sánchez, María Teresa
  • Paez, Antonio
  • Sánchez Caba, Jesús
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 5th Euroasphalt and Eurobitume Congress 2012
Fechas del Evento: 13/06/2012 - 15/06/2012
Lugar del Evento: Estambul (Turquía)
Título del Libro: Actas del 5th Euroasphalt and Eurobitume Congress 2012
Fecha: 13 Junio 2012
ISBN: 978-972-8692-45-2
Materias:
Palabras Clave Informales: Polyethylene modified bitumen, binder stability, polyethylene-bitumen compatibility
Escuela: E.U.I.T. Aeronáutica (UPM) [antigua denominación]
Departamento: Física y Química Aplicada a la Técnica Aeronáutica [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Bitumen modification by polyethylene addition usually improves the mechanical properties of the binder and, therefore, the behavior in service of the bituminous mix: thermal susceptibility and rutting can be diminished, whilst the resistance to low temperature cracking may increase. To achieve this improvement it is necessary a good compatibility between the base bitumen and the polyethylene. Low compatibility between bitumen and polyethylene can lead to phase separation: the polymer- asphalt incompatibility translates into a deterioration of ultimate properties. The object of this research project was to determine if these problems can be diminished by using certain compatibilizer agents, e.g. an aromatic extract from the oil refinery. Compatibility and stability of the polyethylene modified bitumen were studied using conventional test methods and dynamic shear reometer (DSR). Blends of bitumen and polyethylene were prepared with neat bitumen (PMB) or bitumen with compatibilizer as component of the binder (PMBC) and then compared. The experimental results show that “colloid instability index”(IC) is a parameter that can be used to control the compatibility between bitumen and polyethylene. From polyethylene point of view, one of the parameters that govern is the “melt flow index” (MFI). Experimental results show that PMBC formulated with low IC bitumen and hi gh MFI lineal polyethylene can be considered as stable binder.

Más información

ID de Registro: 19774
Identificador DC: http://oa.upm.es/19774/
Identificador OAI: oai:oa.upm.es:19774
Depositado por: Memoria Investigacion
Depositado el: 13 May 2014 18:02
Ultima Modificación: 21 Abr 2016 21:10
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