TY - JOUR
T1 - Application of wood powder for asphalt CO2 emission reduction
AU - Li, Xiaolong
AU - Yuan, Fugen
AU - Shen, Junan
AU - Jia, Jingpeng
AU - Gao, Junfeng
N1 - Publisher Copyright:
© 2022
PY - 2022/11/15
Y1 - 2022/11/15
N2 - In this study, we examined the capacities of three additives, viz. wood powder, Al(OH)3-loaded wood powder, and Mg(OH)2-loaded wood powder, to reduce the emission of CO2 from heated asphalt. We analyzed the effects of particle size and amount of wood powder additive, as well as the loading quantity of Al(OH)3/Mg(OH)2, on the concentration of CO2 emission from heated asphalt. We performed surface morphology and elemental analyses of the modified and unmodified wood powders by scanning electron microscopy in combination with energy-dispersive X-ray spectroscopy. The results indicated that using wood powder additives reduced the emission of CO2 from asphalt at high temperatures. Loading Al(OH)3/Mg(OH)2 was also found to improve the results. The optimal wood powder particle size, amount of wood powder additive, and Mg(OH)2 loading amount were determined to be 80–100 mesh, 2%, and 4%, respectively. Specifically, the rate of reduction of CO2 emission from asphalt reached 92.9–97.9% under these optimal conditions.
AB - In this study, we examined the capacities of three additives, viz. wood powder, Al(OH)3-loaded wood powder, and Mg(OH)2-loaded wood powder, to reduce the emission of CO2 from heated asphalt. We analyzed the effects of particle size and amount of wood powder additive, as well as the loading quantity of Al(OH)3/Mg(OH)2, on the concentration of CO2 emission from heated asphalt. We performed surface morphology and elemental analyses of the modified and unmodified wood powders by scanning electron microscopy in combination with energy-dispersive X-ray spectroscopy. The results indicated that using wood powder additives reduced the emission of CO2 from asphalt at high temperatures. Loading Al(OH)3/Mg(OH)2 was also found to improve the results. The optimal wood powder particle size, amount of wood powder additive, and Mg(OH)2 loading amount were determined to be 80–100 mesh, 2%, and 4%, respectively. Specifically, the rate of reduction of CO2 emission from asphalt reached 92.9–97.9% under these optimal conditions.
KW - Aluminum hydroxide
KW - Asphalt
KW - Carbon dioxide concentration
KW - Carbon emission reduction
KW - Magnesium dihydroxide
KW - Wood powder
UR - http://www.scopus.com/inward/record.url?scp=85138455789&partnerID=8YFLogxK
U2 - 10.1016/j.jclepro.2022.134127
DO - 10.1016/j.jclepro.2022.134127
M3 - Article
AN - SCOPUS:85138455789
SN - 0959-6526
VL - 375
JO - Journal of Cleaner Production
JF - Journal of Cleaner Production
M1 - 134127
ER -