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PIARC (World Road Association), founded in 1909 and comprising 125 member governments from all over the world, is the global forum for exchange of knowledge and experience on roads, road transport policies and practices. With consultative status to the Economic and Social Council of the United Nations, the Association is contributing to a stable and sustainable global development of the road and transport sector.

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  4. Term of the Dictionary | modified bitumen

Term of the Road Dictionary

modified bitumen

  • Language : PIARC Road Dictionary / English
  • Theme : Roads Materials Binders
  • Definition : Bitumen whose rheological properties have been modified during manufacture by the use of a chemical agent such as crumb rubber powder, synthetic polymers, sulphur, and certain organometallic compounds. Note: 1. Oxygen and oxidation ''catalysts'' as well as fibres and inorganic powders are not considered to be bitumen modifiers. 2. Modified bitumens may be employed directly or in the form of cutbacks or emulsions or blended with (e.g.) lake asphalt [CEN].

modifiziertes Bitumen

  • Language : PIARC Road Dictionary / German
  • Theme : Straßen Baustoffe Bindemittel
  • Definition : Bitumen, dessen rheologische Eigenschaften durch Herstellung unter Verwendung eines chemischen Zusatzes wie Naturkautschuk, synthetisches Polymer, Schwefel und bestimmten organometallischen Komponenten modifiziert ist. Anmerkung: Sauerstoff und Oxidations-“Katalysatoren" wie auch Fasern und anorganische Pulver werden nicht als Modifizierungsmittel für Bitumen angesehen. Modifizierte Bitumen können direkt oder in Form von Verschnittmitteln oder Emulsionen oder gemischt mit (z. B.) Naturasphalt verwendet werden (CEN).