Rheological Effects of Waxes in Bitumen

Rheological effects of adding two bitumen waxes (isolated from SEC−II fraction) to three bitumens were studied using dynamic mechanical analysis (DMA). Also, a commercially available slack wax was used in the study. The results show that the magnitude and type of effect on bitumen rheology depend on...

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Veröffentlicht in:	Energy & fuels 2003-05, Vol.17 (3), p.511-520
Hauptverfasser:	Edwards, Y, Redelius, P
Format:	Artikel
Sprache:	eng
Schlagworte:	Addition reactions Applied sciences Bitumen Building engineering Byggnadsteknik Civil engineering and architecture Crude oil, natural gas and petroleum products Crystallization Crystallizing fraction Dynamic mechanical analysis Elastic moduli Energy Exact sciences and technology Fuels Petroleum products, gas and fuels. Motor fuels, lubricants and asphalts Rheological effects Rheology Rutting sensitivity Samhällsbyggnadsteknik och arkitektur Sensitivity analysis TECHNOLOGY TEKNIKVETENSKAP Temperature
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Beschreibung
Zusammenfassung:	Rheological effects of adding two bitumen waxes (isolated from SEC−II fraction) to three bitumens were studied using dynamic mechanical analysis (DMA). Also, a commercially available slack wax was used in the study. The results show that the magnitude and type of effect on bitumen rheology depend on the bitumen and type of crystallizing fraction in the bitumen. Effects due to wax content shown in DMA temperature sweeps are well related to the corresponding effects shown in DSC thermograms. The slope of the logarithm of the complex modulus between 25 °C and 60 °C is introduced as a possible proper factor for predicting rutting sensitivity due to wax content.
ISSN:	0887-0624 1520-5029 1520-5029
DOI:	10.1021/ef020202b