Journal of Civil and Environmental Engineering

Maurizio Crispino

Publications

• Research Article
  Evaluation of the Effect of Aggregates Mineralogy and Geometry on Asphalt Mixture Friction
  Author(s): Marco Magnoni, Filippo Giustozzi, Emanuele Toraldo and Maurizio CrispinoMarco Magnoni, Filippo Giustozzi, Emanuele Toraldo and Maurizio Crispino
  
  Road pavement friction is a main physical phenomenon of interaction between tires and the road surface; it provides skid resistance during accelerations and decelerations. The paper focuses on the effects, at laboratory scale, of geometry (in terms of fine aggregates - minimum/maximum size of 0.063/2 mm - content), mineralogy (basalt or metamorphic - minimum/maximum size of 8/16 mm) and shape (in terms on Flakiness and Shape index) on friction performance of asphalt wearing courses for road pavements, in terms of British Pendulum Number and Mean Texture Depth. Laboratory results were statistically treated and used to define predictive formulas which correlate friction characteristics and the explanatory variables considered by the study. The amount of fine particles in the mix and the shape of coarse aggregates demonstrated to affect friction properties and macro texture. .. Read More»
  DOI: 10.4172/2165-784X.1000223

  Abstract PDF