A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Effects of Asphalt Binder Type on Mixing Flowability and Workability Index of Asphalt Mixtures
https://orcid.org/http://orcid.org/0000-0001-9459-9349
There have been immense research studies conducted on asphalt mixture design and the corresponding pavement performances. However, the flowability and workability of asphalt mixtures have not been well understood, which has a significant effect on the subsequent mixture performances. To quantitatively evaluate the mixing flowability of asphalt mixture and deepen the understanding of evolution mechanism of its strength composition, six types of asphalt binders were tested for their viscosities and the corresponding asphalt mixtures were prepared in this study. Their flowing behavior during the mixing process was tested at different mixing rates and temperatures using a modified Marshall mixing equipment. It was found that the higher the mixing temperature and the smaller the mixing rate, the less mixing power was consumed and the easier asphalt mixture was to mix. Moreover, the flowing behavior of asphalt mixtures can be well described by the Bingham model. Further, a new parameter termed as mixing workability index was introduced to evaluate the mixing difficulty of asphalt mixtures, and it was found that the asphalt binder types have a significant effect on mixture workability.
Effects of Asphalt Binder Type on Mixing Flowability and Workability Index of Asphalt Mixtures
https://orcid.org/http://orcid.org/0000-0001-9459-9349
There have been immense research studies conducted on asphalt mixture design and the corresponding pavement performances. However, the flowability and workability of asphalt mixtures have not been well understood, which has a significant effect on the subsequent mixture performances. To quantitatively evaluate the mixing flowability of asphalt mixture and deepen the understanding of evolution mechanism of its strength composition, six types of asphalt binders were tested for their viscosities and the corresponding asphalt mixtures were prepared in this study. Their flowing behavior during the mixing process was tested at different mixing rates and temperatures using a modified Marshall mixing equipment. It was found that the higher the mixing temperature and the smaller the mixing rate, the less mixing power was consumed and the easier asphalt mixture was to mix. Moreover, the flowing behavior of asphalt mixtures can be well described by the Bingham model. Further, a new parameter termed as mixing workability index was introduced to evaluate the mixing difficulty of asphalt mixtures, and it was found that the asphalt binder types have a significant effect on mixture workability.
Effects of Asphalt Binder Type on Mixing Flowability and Workability Index of Asphalt Mixtures
https://orcid.org/http://orcid.org/0000-0001-9459-9349
There have been immense research studies conducted on asphalt mixture design and the corresponding pavement performances. However, the flowability and workability of asphalt mixtures have not been well understood, which has a significant effect on the subsequent mixture performances. To quantitatively evaluate the mixing flowability of asphalt mixture and deepen the understanding of evolution mechanism of its strength composition, six types of asphalt binders were tested for their viscosities and the corresponding asphalt mixtures were prepared in this study. Their flowing behavior during the mixing process was tested at different mixing rates and temperatures using a modified Marshall mixing equipment. It was found that the higher the mixing temperature and the smaller the mixing rate, the less mixing power was consumed and the easier asphalt mixture was to mix. Moreover, the flowing behavior of asphalt mixtures can be well described by the Bingham model. Further, a new parameter termed as mixing workability index was introduced to evaluate the mixing difficulty of asphalt mixtures, and it was found that the asphalt binder types have a significant effect on mixture workability.
Effects of Asphalt Binder Type on Mixing Flowability and Workability Index of Asphalt Mixtures
Int. J. Pavement Res. Technol.
Yan, Xili (author) / Chen, Yu (author) / Li, Kenan (author) / You, Qinglong (author)
International Journal of Pavement Research and Technology ; 17 ; 495-502
2024-03-01
8 pages
Article (Journal)
Electronic Resource
English
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