Abstract
The compatibility between crumb rubber (CR) and asphalt binder plays a key role in the storage stability and rheological performance of rubberized asphalt binder. This review provides a comprehensive overview of characteristics of rubberized asphalt binder, factors influencing compatibility, compatibility evaluation methods, and improvement approaches. Desired compatibility results from the fact that CR is cross-linked with molecules of asphalt binder and evenly distributed in the asphalt binder, forming a homogeneous system. Rheological methods are the most widely used methods for compatibility evaluation. Additionally, the hybrid processing of surface activation treatment of CR and additives-grafting has shown to be a promising method for improving the compatibility of rubberized asphalt binder.
| Original language | English |
|---|---|
| Article number | 123820 |
| Journal | Construction and Building Materials |
| Volume | 297 |
| Early online date | 10 Jun 2021 |
| DOIs | |
| Publication status | Published - 23 Aug 2021 |
Bibliographical note
Funding: This review is funded by the National Natural Science Foundation of China (51778062 and 51878063). The authors also thank China Scholarship Council (CSC) for their financial support (No. 202006560080).Keywords
- Crumb rubber
- Asphalt binder
- Compatibility
- Activation treatment
- Storage stability
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