Rheological Characteristics of Residue Binder from Low Penetration Grade Bitumen Emulsion

Abstract:

In this study, residue binders from low penetration grade bitumen emulsions were investigated on the basis of rheology and were compared to the neat bitumen binders of which they were produced. The recovery method proposed by EN 13074 (including both recovery and stabilization process at moderate temperatures) was selected to obtain the residue binders used in the analysis, and the corresponding neat binders were treated the same for comparison. The rheological properties of residue binder from low penetration grade bitumen emulsion were evaluated using Dynamic Shear Rheometer (DSR). During the curing process, three stages were divided, and master curves of complex modulus and phase angle were constructed to allow comparison of the residue binder over a large range of frequencies for each stage. The results showed that the complex modulus increases while the phase angle decreases with curing process for the residues, indicating a better performance in terms of elasticity and stiffness.

• Periodical: Key Engineering Materials (Volume 509)
• Pages: 328-332
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.509.328
• Online since: April 2012
• Authors: Guang Ji Xu, Mei Zhu Chen, Shao Peng Wu, Martin Van de Ven, Steven Mookhoek
• Keywords: Low Penetration Grade Bitumen Emulsion, Master Curve, Oxidation Effect, Residue

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