Open AccessFour-point bending mechanical behavior of aged asphalt mixtures containing charcoal
Author(s) -
Alemar Pereira Torres,
Igor ato Almeida Pereira,
Juliano Rodrigues Spínola,
Alex Gomes Pereira,
Consuelo Alves da Frota
Publication year - 2019
Language(s) - English
Resource type - Journals
ISSN - 2411-2933
DOI - 10.31686/ijier.vol7.iss10.1794
Subject(s) - asphalt , materials science , composite material , charcoal , bending , stiffness , phase angle (astronomy) , coating , asphalt pavement , metallurgy , optics , physics
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.