Improved mechanical properties of bitumen modified with acetylated cellulose fibers
| Autor: | Lily D. Poulikakos, Salomé dos Santos, Thomas Geiger, Tanja Zimmermann, Manfred N. Partl, Solenne Desseaux, Philippe Tingaut |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Temperature sensitivity Mechanical Engineering Phase angle 0211 other engineering and technologies 02 engineering and technology 021001 nanoscience & nanotechnology Industrial and Manufacturing Engineering Shear modulus Cellulose fiber chemistry.chemical_compound Fracture toughness chemistry Mechanics of Materials Asphalt 021105 building & construction Ceramics and Composites Deformation (engineering) Cellulose Composite material 0210 nano-technology |
| Zdroj: | Composites Part B: Engineering. 140:139-144 |
| ISSN: | 1359-8368 |
| DOI: | 10.1016/j.compositesb.2017.12.010 |
| Popis: | Temperature sensitivity of bitumen modified with acetylated microfibrillated cellulose (MFCac), both in the low and high temperature ranges, is significantly decreased. The complex shear modulus for an MFCac content of 2 wt% was 10 times higher than for bitumen alone. In addition the phase angle at high temperatures indicates increased elastic behavior that results in favorable properties with respect to rutting. On the low temperature side (−25 °C), the deformation to failure in fracture toughness tests was around 100 times higher with MFCac modified bitumen than for the non-modified one whereas the failure forces were similar. |
| Databáze: | OpenAIRE |
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