UV and Thermal Aging of Pure Bitumen-comparison Between Laboratory Simulation and Natural Exposure Aging
- 1 January 2008
- journal article
- research article
- Published by Taylor & Francis in Road Materials and Pavement Design
- Vol. 9 (sup1), 103-113
- https://doi.org/10.1080/14680629.2008.9690161
Abstract
In this paper, several indoor laboratory aging tests and the Natural Exposure Aging (NEA) test were employed as the aging regimes of pure bitumen. The properties of various aged bitumen specimens were investigated by Dynamic Shear Rheometer (DSR) and Fourier Transform Infrared Spectra (FTIR). By this means the differences between the laboratory and natural exposure aging was analysed. Experimental results showed that both thermal and ultraviolet (UV) radiation aging happened during UV radiation oven test and the later was much more prominent on the influence of bitumen's properties, in particular, when the binder films was smaller than 100 μm. In a wide range of frequency, complex modulus and phase angle obtained from DSR tests revealed that UV radiation oven test showed a better corresponding relationship with NEA when compared to Pressure Aging Vessel (PAV).Keywords
This publication has 6 references indexed in Scilit:
- Effect of asphalt film thickness on the moisture sensitivity characteristics of hot-mix asphaltBuilding and Environment, 2007
- Minimum voids in mineral aggregate in hot-mix asphalt based on asphalt film thicknessBuilding and Environment, 2007
- The influence of UV aging of a Styrene/Butadiene/Styrene modified bitumen: Comparison between laboratory and on site agingFuel, 2007
- State of the Art Report on Ageing Test Methods for Bituminous Pavement MaterialsInternational Journal of Pavement Engineering, 2003
- Analytical Formulas for Film Thickness in Compacted Asphalt MixtureTransportation Research Record: Journal of the Transportation Research Board, 2003
- Comparison by Fourier transform infrared (FTIR) spectroscopy of different ageing techniques: application to road bitumensFuel, 2001