Comparative characterization of aged bitumen properties

International Conference Baltic Polymer Symposium 2018

Abele, A.^1 ; Meri Merijs, R.^1 ; Berzia, R.^1 ; Zicans, J.^1 ; Ivanova, T.^1 ; Haritonovs, V.^2

Institute of Polymer Materials, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Riga, Latvia^1

Department of Roads and Bridges, Faculty of Civil Engineering, Riga Technical University, Riga, Latvia^2

关键词: Alternative procedures;    Chemical compositions;    Comparative characterizations;    Complete information;    Environmental factors;    Fatigue cracking resistance;    Rheological parameter;    Ultraviolet light irradiation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/500/1/012036/pdf
DOI  :  10.1088/1757-899X/500/1/012036

来源: IOP

【 摘 要 】

To provide higher rates of reclaimed bitumen uses in road industry better understanding about aging of bitumen is needed, which requires to get complete information about influence of aggressive environmental factors on bitumen. In this paper changes of bitumen structural and rheological parameters upon ageing are evaluated by using one of the most known method, RTFOT in comparison to alternative procedures, as thermally and ultraviolet light irradiation induced aging. Calorimetric properties of the raw and aged bitumens are determined by MDSC, chemical composition by FTIR and rheological parameters (viscosity, rutting resistance and fatigue cracking resistance) by DSR. The results confirm that mentioned alternative aging procedures can be used to some extent for prediction of real field-aged bitumen properties changes.