期刊论文

Zhang, Yuqing

英文

Applied Surface Science

0169-4332

2019

479

449-462

10.1016/j.apsusc.2019.02.121

To quantify the adhesion between bitumen and mineral, the adhesive bond energy of the bitumen-mineral interface systems is characterised by the work of adhesion. It is defined as the energy required separating a unit area of the bitumen-mineral interface into a bitumen surface and a mineral surface. The work of adhesion (WBM) is expressed as [34,50]. WBM=∆EBM/A ∆EBM=EB+EM–EBM where ∆EBM is the interaction energy between bitumen and mineral in the bitumen-mineral system; EB, EM, and EBM represent

本校为其他机构

The interfacial adhesion between oxidised bitumen and mineral surfaces at dry and wet conditions was investigated using molecular dynamics (MD) simulations. Molecular models were built for virgin and oxidised bitumen components including saturate, aromatic, resin and asphaltenes. The bitumen models and four representative mineral substrates (namely quartz, calcite, albite and microcline) were employed to construct bitumen-mineral interface systems. These models were validated by the experimental results and MD simulations reported in the litera...