Four-point bending mechanical behavior of aged asphalt mixtures containing charcoal

Alemar Pereira  Torres; Igor Nonato Almeida  Pereira; Juliano Rodrigues  Spínola; Alex Gomes   Pereira; Consuelo Alves da  Frota

doi:10.31686/ijier.vol7.iss10.1794

Authors

Alemar Pereira Torres Grupo de Geotecnia, Universidade Federal do Amazonas – UFAM - Brasil
Igor Nonato Almeida Pereira Grupo de Geotecnia, Universidade Federal do Amazonas – UFAM – Brasil
Juliano Rodrigues Spínola Grupo de Geotecnia, Universidade Federal do Amazonas – UFAM – Brasil
Alex Gomes Pereira Grupo de Geotecnia, Universidade Federal do Amazonas – UFAM – Brasil
Consuelo Alves da Frota Grupo de Geotecnia, Universidade Federal do Amazonas – UFAM - Brasil

DOI:

https://doi.org/10.31686/ijier.vol7.iss10.1794

Keywords:

asphalt mixtures, charcoal, four-point bending

Abstract

The asphalt coating is the layer responsible for resisting the traffic stresses of a highway. However, the search for new materials to mitigate environmental impacts and improve pavement quality is increasing. Thus, the mechanical behavior of asphalt mixtures was analyzed through the four-point bending test after the molding process and aged, with the participation of residues in the form of charcoal. The frequencies of 1Hz, 3Hz, 5Hz, 10Hz, 20Hz and 1Hz are considered at temperatures of 25°C and 40°C. The aging process contributed to improve the mechanical characteristics of the charcoal mixture at a temperature of 25 ° C, considering that there was an increase in stiffness at frequencies from 1 to 20 Hz, as well as a reduction in phase angle at frequencies of 3 Hz. , 5 Hz, 10 Hz and 20 Hz.

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