Effect of an Organic Rectorite on the Properties of a Waste Engine Oil-Modified Asphalt
Loading...
Access rights
openAccess
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
Date
2023-09
Major/Subject
Mcode
Degree programme
Language
en
Pages
Series
Applied Sciences (Switzerland), Volume 13, issue 17
Abstract
Using waste engine oil (WEO) to partially replace petroleum-based asphalt binders offers a promising solution to mitigate the environmental impact of waste WEO while reducing the dependence on non-renewable asphalt resources. To enhance the comprehensive properties of a modified asphalt containing 6 wt% WEO, an organic rectorite (OREC) with various contents was introduced to the modified asphalt system. The effect of OREC on the structure, storage stability, rheological properties, and self-healing property of WEO-modified asphalt were evaluated using a Fourier transform infrared spectrometer, softening point instrument, and rheometer. The results demonstrated that that no chemical reaction occurs between OREC and WEO-modified asphalt. The addition of OREC can enhance the storage stability and high-temperature stability while marginally decreasing the low-temperature cracking resistance and self-healing properties of WEO-modified asphalt. When the content of OREC increases to 2 wt%, the 48 h softening point difference value of the OREC + WEO composite-modified asphalt drops to 1.8 °C, and this composite-modified asphalt exhibits superior high-temperature rutting resistance, low-temperature cracking resistance, and self-healing property compared to the corresponding base asphalt. In summary, the addition of OREC can effectively offset the adverse effects of WEO on the properties of base asphalt.Description
Funding Information: This research was funded by the Guangxi Transportation Science and Technology Demonstration Project (Grant number 2023-0002). Publisher Copyright: © 2023 by the authors.
Keywords
modified asphalt, organic rectorite, rheological properties, self-healing property, waste engine oil
Other note
Citation
Jia , M , Ling , X , Yao , S , Wang , D , Falchetto , A C & Yuan , D 2023 , ' Effect of an Organic Rectorite on the Properties of a Waste Engine Oil-Modified Asphalt ' , Applied Sciences (Switzerland) , vol. 13 , no. 17 , 9856 . https://doi.org/10.3390/app13179856