Effects of nanoclay on rutting and fatigue resistance of bitumen binder
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Saeed Ghaffarpour Jahromi
Abstract
Nanoclays are a new generation of processed clays of interest in a wide range of high performance composites. Nanoclay is defined as clay that can be modified to make the clay complexes compatible with organic monomers and polymers. Here, it can be said that polymeric nanocomposites are among the most exciting and promising classes of materials discovered recently. A number of physical properties are enhanced successfully when a polymer is modified with a small amount of nanoclay on condition that the clay is dispersed at the nanoscopic level. This research has accomplished a comparative rheological test on unmodified and nanoclay modified bitumen. For this, two types of nanoclay were used: Nanofill-15 and Cloisite-15A. X-ray diffraction has been used to study the nanostructure exfoliation of nanoclay platelets in bitumen. The results show that compared to unmodified bitumen, the nanoclay modification leads to changes in rheological parameters by increasing stiffness and decreasing the phase angle, hence it can also reduce aging effects in bitumen. Further, comparison of the rutting parameter (G∗/sin δ) shows that the nanoclay modification could increase the rutting resistances of bitumen and the improvement is dependent upon the type and amount of nanoclay. The fatigue resistance parameter (G∗/sin δ) at low to medium temperatures shows that the nanoclay modification reduces the fatigue life, however it exhibits the same fatigue life as that of the unmodified bitumen after a particular aging condition.
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© 2012, Carl Hanser Verlag, München
Artikel in diesem Heft
- Contents
- Contents
- Original Contributions
- Free-surface enhanced continuum model predicts size-effect for pillar compression at micro- and nano-scale
- Modelling of microstructural evolution on complex paths of large plastic deformation
- Melting temperature of metallic nanoparticles embedded in a rigid matrix
- On the coupled growth of oxide phases during internal oxidation of Ag–Sn–Bi alloys
- Phase diagram of the Sb–Te–I system and thermodynamic properties of SbTeI
- Pressureless co-sintering behaviour of a steel/cemented carbide component: model bimaterial
- Rafting structure formation during solution treatment in a nickel-based superalloy
- A model to calculate the viscosity of silicate melts
- Prediction of glass transition temperatures of aromatic heterocyclic polymers
- Relationship between the γ and some parameters of Fe-based bulk metallic glasses
- Growth of rare-earth zirconates-based pyrochlore buffer layers on YSZ for YBCO-coated conductors via chemical solution deposition
- Preparation and characterization of low temperature sintering nanocrystalline TiO2 prepared via the sol-gel method using titanium(IV) butoxide applicable to flexible dye sensitized solar cells
- Effects of preparation methods on color properties of ZnO-based nano-crystalline green pigments
- Effect of reaction media on the formation of CdS nanorods
- Effect of titanium addition on structure and properties of the as-cast high Cr–Mo white iron
- Effect of welding sequence on residual stress distributions in GTA welding of AA5251 plate
- Electrochemical machining of Al/15% SiCP composites through a response surface methodology-based approach
- Effects of nanoclay on rutting and fatigue resistance of bitumen binder
- DGM News
- DGM News
Artikel in diesem Heft
- Contents
- Contents
- Original Contributions
- Free-surface enhanced continuum model predicts size-effect for pillar compression at micro- and nano-scale
- Modelling of microstructural evolution on complex paths of large plastic deformation
- Melting temperature of metallic nanoparticles embedded in a rigid matrix
- On the coupled growth of oxide phases during internal oxidation of Ag–Sn–Bi alloys
- Phase diagram of the Sb–Te–I system and thermodynamic properties of SbTeI
- Pressureless co-sintering behaviour of a steel/cemented carbide component: model bimaterial
- Rafting structure formation during solution treatment in a nickel-based superalloy
- A model to calculate the viscosity of silicate melts
- Prediction of glass transition temperatures of aromatic heterocyclic polymers
- Relationship between the γ and some parameters of Fe-based bulk metallic glasses
- Growth of rare-earth zirconates-based pyrochlore buffer layers on YSZ for YBCO-coated conductors via chemical solution deposition
- Preparation and characterization of low temperature sintering nanocrystalline TiO2 prepared via the sol-gel method using titanium(IV) butoxide applicable to flexible dye sensitized solar cells
- Effects of preparation methods on color properties of ZnO-based nano-crystalline green pigments
- Effect of reaction media on the formation of CdS nanorods
- Effect of titanium addition on structure and properties of the as-cast high Cr–Mo white iron
- Effect of welding sequence on residual stress distributions in GTA welding of AA5251 plate
- Electrochemical machining of Al/15% SiCP composites through a response surface methodology-based approach
- Effects of nanoclay on rutting and fatigue resistance of bitumen binder
- DGM News
- DGM News
