A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Development of an Adherence Energy Test via Force-Displacement Atomic Force Microscopy (FD-AFM)
Significant progress has been made in regard to scientific and engineering investigations to understand the influence of material composition and mechanical properties of bituminous binder on damage and self-healing behavior associated with pavement fracture. It is well known that visco-elastic materials tend to exhibit rate and temperature dependant behavior in terms of fracture energy. As a representative of this class of materials, rate-dependant fracture should be expected for bituminous binders. Preliminary results are reported regarding a study using an atomic force microscopy (AFM) technique developed to determine if rate dependence is a factor in micro-scale adhesive fracture of bitumen thin-films. The technique involves creating then fracturing a standardized adhesive contact between bitumen and glass by application of a direct tensile force to the contact at various rates. The work required to fracture the standard contact is measured and recorded as a function of temperature and separation rate. The results of this study show that bitumen fracture energy is indeed rate and temperature dependant. The study also shows that bitumen derived from different crude sources exhibit differing fracture rate (and temperature) dependencies.
Development of an Adherence Energy Test via Force-Displacement Atomic Force Microscopy (FD-AFM)
Significant progress has been made in regard to scientific and engineering investigations to understand the influence of material composition and mechanical properties of bituminous binder on damage and self-healing behavior associated with pavement fracture. It is well known that visco-elastic materials tend to exhibit rate and temperature dependant behavior in terms of fracture energy. As a representative of this class of materials, rate-dependant fracture should be expected for bituminous binders. Preliminary results are reported regarding a study using an atomic force microscopy (AFM) technique developed to determine if rate dependence is a factor in micro-scale adhesive fracture of bitumen thin-films. The technique involves creating then fracturing a standardized adhesive contact between bitumen and glass by application of a direct tensile force to the contact at various rates. The work required to fracture the standard contact is measured and recorded as a function of temperature and separation rate. The results of this study show that bitumen fracture energy is indeed rate and temperature dependant. The study also shows that bitumen derived from different crude sources exhibit differing fracture rate (and temperature) dependencies.
Development of an Adherence Energy Test via Force-Displacement Atomic Force Microscopy (FD-AFM)
RILEM Bookseries
Kringos, Niki (editor) / Birgisson, Björn (editor) / Frost, David (editor) / Wang, Linbing (editor) / Pauli, Troy (author) / Grimes, Will (author) / Wang, Mengxi (author) / Lu, Peng (author) / Huang, Shin-Che (author)
Multi-Scale Modeling and Characterization of Infrastructure Materials ; Chapter: 20 ; 273-284
RILEM Bookseries ; 8
2013-01-01
12 pages
Article/Chapter (Book)
Electronic Resource
English
Adherence Energy of Asphalt Thin Films Measured by Force-Displacement Atomic Force Microscopy
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