Bitumen Morphology as Observed by Phase-Detection Atomic Force Microscopy

Elisabete R. Costa; Rogerio Colaço; António Correia Diogo

doi:10.4028/www.scientific.net/MSF.587-588.981

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Mechanical Behaviour of FSW Aluminium Tailored Blanks
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Development of a New Testing Method for Assessing the Wear Behaviour of Circular Cutting Discs
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Influence of Wear Properties on Fretting Fatigue Life of a CK45 Alloy and the Al7175 Alloy
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Effect of Tool Geometry in the Friction Stir Welding of AA6082-T651
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Bitumen Morphology as Observed by Phase-Detection Atomic Force Microscopy
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Static and Fatigue Resistance of GRP Materials and Flywheel Disc of a Storage Unit for Environmentally Friendly Urban Vehicles
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Surface Singularity Upon Solar Radiation Heating of Graphite/Tungsten Powder Mixture Compacts to Temperatures in Excess of 1600°C
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Stereolitography, the Front Edge of Rapid Prototyping
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Extending the Lifetime of Weldable Primers by Means of Chemical Inhibitors
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HomeMaterials Science ForumMaterials Science Forum Vols. 587-588Bitumen Morphology as Observed by Phase-Detection...

Bitumen Morphology as Observed by Phase-Detection Atomic Force Microscopy

Abstract:

An analysis of the microstructure of several modified bitumen shown by phase detection Atomic Force Microscopy (AFM) is presented here. The phase detection and topographic AFM images, displayed three different types of microstructure: the so-called catana phase domains (beelike structures) dispersed in the peri-phase are present in most of the cases; para-phase domains are also observed in the neighbourhood of both catana and peri-phases. These results are consistent with the picture of bitumen as a heterogeneous mixture, as one should expect. The proportions of all these phases display a rather strong dependence on the nature of the modified bitumen considered, on the concentration of the modifier, as well as on the amount of aging of the mix.