Thermal behaviour of bitumen modified by sulphur addition

Masegosa Fanego, Rosa María; Cañamero, Pedro; Sánchez Cabezudo, Marta; Viñas Sánchez, María Teresa; Salom Coll, Catalina; Gonzáez Prolongo, Margarita; Paez, Antonio y Ayala, Mercedes (2012). Thermal behaviour of bitumen modified by sulphur addition. En: "5th Eurasphalt & Eurobitume Congress", 13/06/2012 - 15/06/2012, Estambul (Turquía). ISBN 978-972-8692-45-2. pp. 142-148.

Descripción

Título: Thermal behaviour of bitumen modified by sulphur addition
Autor/es:
  • Masegosa Fanego, Rosa María
  • Cañamero, Pedro
  • Sánchez Cabezudo, Marta
  • Viñas Sánchez, María Teresa
  • Salom Coll, Catalina
  • Gonzáez Prolongo, Margarita
  • Paez, Antonio
  • Ayala, Mercedes
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 5th Eurasphalt & Eurobitume Congress
Fechas del Evento: 13/06/2012 - 15/06/2012
Lugar del Evento: Estambul (Turquía)
Título del Libro: 5th Eurasphalt & Eurobitume Congress
Fecha: 13 Junio 2012
ISBN: 978-972-8692-45-2
Materias:
Palabras Clave Informales: Bitumen modified, sulphur, thermal behaviour
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

The most frequent use of bitumen is as binder for pavement applications. The effect of sulphur addition on the properties of the bitumen has been extensively studied several decades ago. Recently, there is a renewed interest in researching the behaviour of sulphur-bitumen combination, because off 1.The future availability of bitumen may be limited and 2. The beneficial consumption of great amounts of sulphur compounds from petroleum refining is advisable. The addition of sulphur to bitumen provokes the beginning of chemical reactions depending on the sulphur content and heating temperature. At heating temperatures T< 140 ºC liquid sulphur reacts with naphthenic-aromatic fraction forming polysulphides. At temperatures above 150 ºC dehydrogenization reactions with emission of hydrogen sulfide take place and naphthenic-aromatic molecules are transformed into asphaltenes. Therefore, the addition of sulphur to bitumen provokes changes in the chemical structure of the bitumen. The objective of this work is to analyze, the thermal behaviour of sulphur-bitumen mixtures of different composition (0-35 %wt sulphur content) prepared at 130 and 140 ºC, by means of differential scanning calorimetry (DSC). Besides, the volatile emissions of the mixtures at high temperature have been estimated from loss weight measurements as a function of stored time

Más información

ID de Registro: 19773
Identificador DC: http://oa.upm.es/19773/
Identificador OAI: oai:oa.upm.es:19773
Depositado por: Memoria Investigacion
Depositado el: 05 May 2014 17:51
Ultima Modificación: 21 Abr 2016 21:10
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