Aging Publications

07 Jan 2022: TRB 101st Annual Meeting, Washington, D.C., USA.

12 July 2019: A new paper published at Construction and Building Materials

Impact of anti-ageing compounds on oxidation ageing kinetics of bitumen by infrared spectroscopy analysis

  • A screening method for anti-ageing additives (AACs) of bitumen was proposed.

  • Normalized carbonyl index (NCI) was adopted to quantify the oxidative ageing.

  • The anti-ageing effectiveness of AACs was measured by NCI based ageing kinetics.

  • The activation energy Ef can be used to determine the effectiveness of AACs.

  • Journal link for the paper or Aston Research Explorer link (for full text)

  • Partially sponsored by H2020/MSCA/IF project - AMAM


14 February 2019: A new paper published at Applied Surface Science

Molecular dynamics investigation of interfacial adhesion between oxidised bitumen and mineral surfaces

  • Van der Waals forces dominate interfacial interaction of bitumen with acidic minerals.

  • Electrostatic forces dominate interfacial interaction of bitumen with alkali minerals.

  • Oxidation causes molecular aggregation and higher polarity of the bitumen.

  • Water weakens while oxidation strengths bitumen-mineral interfacial adhesion.

  • Coupled effect of water and oxidation on adhesion depends on mineral’s acid-base.

  • Journal link for the paper or Aston Research Explorer link (for full text)

  • Partially sponsored by H2020/MSCA/IF project - AMAM

13-17 Jan 2019: TRB 98th Annual Meeting, Washington, D.C., USA.

27 April 2018: A new paper published at Construction and Building Materials

Impact of minerals and water on bitumen-mineral adhesion and debonding behaviours using molecular dynamics simulations

  • Adhesion between bitumen and aggregate mainly results from van der Waals internations for neutral minerals (e.g., quartz)

  • Adhesion is primarily due to the electrostatic interactions for alkali minerals (e.g., calcite, albite and microcline)

  • The bitumen-mineral debonding due to water is a thermodynamically favourable process.

  • Journal link for the paper or Aston Research Explorer link (for full text)

  • Partially sponsored by H2020/MSCA/IF project - AMAM