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Effect of Morphology on High-Temperature Rheological Properties of Polymer-Modified Bitumen

  • Jiqing ZhuEmail author
  • Xiaohu Lu
Conference paper
Part of the RILEM Bookseries book series (RILEM, volume 20)

Abstract

This paper employs isothermal annealing at different temperatures to obtain different microstructures of the same modified bitumen with styrene-butadiene-styrene (SBS) copolymer. The effect of polymer-modified bitumen (PMB) morphology on high-temperature rheological properties is investigated based on the same material. The characteristic wavelength ξ of PMB microstructure was calculated from the fluorescence microscopy images. Dynamic shear rheometer (DSR) measurements and multiple stress creep and recovery (MSCR) tests were performed. The PMB morphology-rheology correlation was discussed within the studied temperature and frequency range. Comparing with a binary droplet-in-matrix microstructure, a homogenous PMB morphology tends to store more energy during shear cycles and reach higher recovery after the loading.

Keywords

Polymer-modified bitumen Morphology Rheology Creep 

References

  1. Liang, M., Xin, X., Fan, W., Wang, H., Ren, S., Shi, J.: Effects of polymerized sulfur on rheological properties, morphology and stability of SBS modified asphalt. Constr. Build. Mater. 150, 860–871 (2017).  https://doi.org/10.1016/j.conbuildmat.2017.06.069CrossRefGoogle Scholar
  2. Lu, X., Soenen, H., Redelius, P.: SBS modified bitumens: does their morphology and storage stability influence asphalt mix performance? In: Paper presented at the 11th International Conference on Asphalt Pavements, Nagoya, Japan, 1–6 August 2010Google Scholar
  3. Soenen, H., De Visscher, J., Vanelstraete, A., Redelius, P.: Influence of thermal history on rheological properties of various bitumen. Rheol. Acta 45(5), 729–739 (2006).  https://doi.org/10.1007/s00397-005-0032-8CrossRefGoogle Scholar
  4. Wang, P., Dong, Z., Tan, Y., Liu, Z.: Identifying the rheological properties of polymer-modified bitumen based on its morphology. Road Mater. Pavement Des. 18(S3), 249–258 (2017).  https://doi.org/10.1080/14680629.2017.1329879CrossRefGoogle Scholar
  5. Zhu, J., Balieu, R., Lu, X., Kringos, N.: Microstructure evaluation of polymer-modified bitumen by image analysis using two-dimensional fast Fourier transform. Mater. Des. 137, 164–175 (2018).  https://doi.org/10.1016/j.matdes.2017.10.023CrossRefGoogle Scholar

Copyright information

© RILEM 2019

Authors and Affiliations

  1. 1.Swedish National Road and Transport Research Institute (VTI)LinköpingSweden
  2. 2.Nynas ABNynäshamnSweden

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