Investigation on low-temperature performance of reclaimed asphalt pavement binder through bending beam rheometer test

Yan Zhang; Zhidan Lin

doi:10.1117/12.2620206

9 December 2021 Investigation on low-temperature performance of reclaimed asphalt pavement binder through bending beam rheometer test

Yan Zhang, Zhidan Lin

Author Affiliations +

Proceedings Volume 12030, Third International Conference on Optoelectronic Science and Materials (ICOSM 2021); 120300Q (2021) https://doi.org/10.1117/12.2620206
Event: Third International Conference on Optoelectronic Science and Materials (ICOSM 2021), 2021, Hefei, China

Abstract

Reclaimed asphalt pavement (RAP) has been increasingly recycled and applied to asphalt pavement engineering over the past decades. However, aged asphalt binder in RAP may lead to poorer low-temperature performance of the recycled asphalt concrete. To effectively and accurately evaluate the low-temperature performance of recycled asphalt binders, this paper investigates the low-temperature rheological properties of aged binder, virgin binder and recycled binder through the bending beam rheometer (BBR) test. By means of the MATLAB software, the Burgers model and Christensen- Anderson-Sharrock (CAS) model were used to fit to the BBR test data of the three binders at different test temperatures. The results showed that the recycled binder possessed superior low-temperature performance. Both the Burgers and CAS models performed well in fitting the measured creep stiffness data and thus can be well used in analyzing the BBR test data.

Citation Download Citation

Yan Zhang and Zhidan Lin "Investigation on low-temperature performance of reclaimed asphalt pavement binder through bending beam rheometer test", Proc. SPIE 12030, Third International Conference on Optoelectronic Science and Materials (ICOSM 2021), 120300Q (9 December 2021); https://doi.org/10.1117/12.2620206

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