METHOD FOR DETERMINING AND PREDICTING THE OXIDATION SENSITIVITY OF A BITUMEN

METHOD FOR DETERMINING AND PREDICTING THE OXIDATION SENSITIVITY OF A BITUMEN

The invention relates to a method for analysing the ageing stability of a bituminous binder, comprising: * a) analysing the bituminous binder by means of negative ion mode electrospray ionisation mass spectrometry and measuring the relative abundance of oxygenated compounds and non-oxygenated compou...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LACROIX-ANDRIVET, Oscar, AFONSO, Carlos, HUBERT-ROUX, Marie, MENDES SIQUEIRA, Anna Luiza, DELAYENS, Franck
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Beschreibung
Zusammenfassung:The invention relates to a method for analysing the ageing stability of a bituminous binder, comprising: * a) analysing the bituminous binder by means of negative ion mode electrospray ionisation mass spectrometry and measuring the relative abundance of oxygenated compounds and non-oxygenated compounds comprising at least one nitrogen atom; * b) carrying out accelerated ageing of the bituminous binder; * c) analysing the bituminous binder, aged according to step b), after different time periods by means of negative ion mode electrospray ionisation mass spectrometry and measuring the relative abundance of oxygenated compounds and non-oxygenated compounds comprising at least one nitrogen atom; * d) comparing the measurements of the relative abundances of oxygenated compounds and non-oxygenated compounds comprising at least one nitrogen atom obtained in step a) and in step c).