Thermal behaviour of bitumen modified by sulphur addition

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


Title: 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
  • Ayala, Mercedes
Item Type: Presentation at Congress or Conference (Article)
Event Title: 5th Eurasphalt & Eurobitume Congress
Event Dates: 13/06/2012 - 15/06/2012
Event Location: Estambul (Turquía)
Title of Book: 5th Eurasphalt & Eurobitume Congress
Date: 13 June 2012
ISBN: 978-972-8692-45-2
Freetext Keywords: Bitumen modified, sulphur, thermal behaviour
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

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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

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Item ID: 19773
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Deposited by: Memoria Investigacion
Deposited on: 05 May 2014 17:51
Last Modified: 21 Apr 2016 21:10
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