Mechanical properties of asphalt binders evaluated by atomic force microscopy

作者: E.R. DOURADO , R.A. SIMAO , L.F.M. LEITE

DOI: 10.1111/J.1365-2818.2011.03552.X

关键词: NanoindentationElasticity (economics)IndentationSevere plastic deformationAtomic force microscopyStiffnessColloidAsphaltComposite materialMaterials science

摘要: Atomic Force Microscopy was employed in order to relate the features observed on surface of a 50/70 asphalt binder according its local stiffness and elastic recovery. Indentations were performed different points significant variation elasticity between so-called bee structure matrix. Also, indentations varying maximum force similar white spots recovery followed up 1 h after indentation. It that is very much dependent colloidal bee. The final state binder, close for usual bees not same as initial one indicating severe plastic deformation. permanent phase change could be bright presented well-structured arrangements. A hardening region.

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