Linear Viscoelastic Behaviour of Asphalt Binders Modified with Polymer/clay Nanocomposites
| Autor: | Felice Giuliani, Giovanni Polacco, Filippo Merusi |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Morphology
chemistry.chemical_classification Nanocomposite Materials science Asphalt Polymer engineering.material Viscoelasticity Nanocomposites Polymer clay chemistry.chemical_compound Montmorillonite chemistry Rheology Bitumen engineering General Materials Science Polymer/bitumen interaction Composite material Material properties |
| Zdroj: | Procedia - Social and Behavioral Sciences. 53:335-345 |
| ISSN: | 1877-0428 |
| DOI: | 10.1016/j.sbspro.2012.09.885 |
| Popis: | The present contribution focuses on asphalt modification with polymeric nanocomposites. Bitumen/polymer/clay ternary blends were prepared using linear SBS copolymer mixed with an organo-modified montmorillonite. Dynamic mechanical analyses (DMA) were performed in the extended domain of temperature and frequency to analyse the thermo-rheological behaviour of the blends. The mechanical response was found to be intimately influenced by the nanocomposite modification and a solid-like behaviour with no Newtonian transition appeared. Morphological analyses allowed to associate variations in material properties with the enhanced compatibility promoted by clay. Relations between the nanocomposite characteristics and the behaviour of the final binder were individuated and discussed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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