EXPERIMENTAL STUDY ON THE ENHANCEMENT OF MECHANICAL PROPERTIES OF BITUMINOUS MASTICS AT HIGH STRAINS
Last modified: 2017-02-28
the variations of stiffness and resilience, measured in terms of complex modulus and phase angle. In order to examine the rheological effect of inorganic filler, tests were performed with the objective of checking the mastic behaviour at the edge of the linear viscoelastic region. Above the linear viscoelastic threshold, the bituminous mastic is significantly sensitive to the presence of filler and a statistically robust protocol is required. The experimental data were
obtained by means of a dynamic shear rheometer (DSR) and synthesized with a viscoelastic model. For the interpretation of the results, master curves of the main performance indices were calculated, being related to the filler content. As expected, the results confirm that artificial aggregate from MSW incinerators can be used in order to improve mastic properties.