Evaluation of rutting resistance of asphalt binders and asphalt mixtures modified with polyphosphoric acid
| Autor: | Aliasghar Akbari Nasrekani, Mohammad Jafari, Mostafa Nakhaei, Abbas Babazadeh |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
050210 logistics & transportation
Materials science Rut General Chemical Engineering 05 social sciences 0211 other engineering and technologies Energy Engineering and Power Technology Modulus 02 engineering and technology General Chemistry Geotechnical Engineering and Engineering Geology Sweep frequency response analysis Fuel Technology Rheology Asphalt 021105 building & construction 0502 economics and business Composite material |
| Zdroj: | Petroleum Science and Technology. 35:141-147 |
| ISSN: | 1532-2459 1091-6466 |
| DOI: | 10.1080/10916466.2016.1248776 |
| Popis: | In this research, a polyphosphoric acid (PPA) additive was used to modify a performance graded binder (PG 58-22). Experimental program included use of three PPA contents (0.5%, 1%, and 1.5%) by weight of bitumen and use of antistripping limestone aggregates. High-temperature rheological properties of asphalt binders were evaluated through the frequency sweep test. Complex modulus test was also used to evaluate rutting characteristics of asphalt mixtures. Results showed that PPA significantly improved rutting resistance of both unmodified asphalt binder and unmodified asphalt mixture, especially for the asphalt binder. |
| Databáze: | OpenAIRE |
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