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

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

Description

Title: Improvement of compatibility and stability on polyethylene-modified bitumen by use of an aromatic extra as compatibilizer.
Author/s:
  • Viñas Sánchez, María Teresa
  • Paez, Antonio
  • Sánchez Caba, Jesús
Item Type: Presentation at Congress or Conference (Article)
Event Title: 5th Euroasphalt and Eurobitume Congress 2012
Event Dates: 13/06/2012 - 15/06/2012
Event Location: Estambul (Turquía)
Title of Book: Actas del 5th Euroasphalt and Eurobitume Congress 2012
Date: 13 June 2012
ISBN: 978-972-8692-45-2
Subjects:
Freetext Keywords: Polyethylene modified bitumen, binder stability, polyethylene-bitumen compatibility
Faculty: E.U.I.T. Aeronáutica (UPM)
Department: Física y Química Aplicada a la Técnica Aeronáutica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (471kB) | Preview

Abstract

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.

More information

Item ID: 19774
DC Identifier: http://oa.upm.es/19774/
OAI Identifier: oai:oa.upm.es:19774
Deposited by: Memoria Investigacion
Deposited on: 13 May 2014 18:02
Last Modified: 21 Apr 2016 21:10
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM