A review of nano layered silicate technologies applied to asphalt materials

Abstract

To clarify the current situation regarding nano layered silicate-modified asphalt, the latest research progress is reviewed in this study. The raw materials and preparation parameters of layered silicate-modified asphalt are summarised. In addition, the microstructure and internal reaction mechanism of modified asphalt are systematically analysed. Specifically, the effects of nano layered silicate on the performance of asphalt, including the high and low-temperature properties, water stability, and aging properties, are discussed in detail. Finally, we review the disadvantages of this technology and examine the direction of future research trends.

Keywords:

• Road engineering
• asphalt
• nano layered silicates
• preparation parameters
• modification mechanism
• properties

Acknowledgements

The authors would like to thank the reviewers of this paper for their comments and suggestions.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This study was financially supported by the National Natural Science Foundation of China [grant number 51778061], [grant number 51608047].