TY - JOUR
T1 - Structural and environmental impact of new-generation wide-base tires in New Brunswick, Canada
AU - Said, Izak M.
AU - Hernandez, Jaime
AU - Kang, Seunggu
AU - Al-Qadi, Imad L.
N1 - Publisher Copyright:
© 2019 Informa UK Limited, trading as Taylor & Francis Group.
PY - 2020/10/2
Y1 - 2020/10/2
N2 - The loading and environmental impacts of new-generation wide-base tires (NG-WBT) and dual tire assemblies (DTA) on typical asphalt concrete (AC) pavement sections of New Brunswick, Canada were evaluated using finite element method (FEM) analysis and life-cycle assessment. The impact of steering wheel was not considered in this study. The analysis considered realistic material models and loading conditions (i.e. AC viscoelastic characteristics and measured three-dimensional nonuniform tire–pavement contact loads). Predicted critical pavement responses were used in transfer functions to determine potential pavement damage. The NG-WBT loading resulted in greater critical pavement responses compared to that of DTA, especially near the surface (e.g. Vertical shear strains in AC). On the other hand, subgrade response (i.e. maximum vertical strains) to loading was similar for both tire configurations. NG-WBT market penetrations and pavement service life are inversely related. For example, an NG-WBT market penetration of 20% resulted in an 8% greater pavement damage. However, the higher the NG-WBT market penetration is, the greater fuel savings and, therefore, the fewer the emissions and greenhouse gases. Hence, both structural and environmental impacts must be considered.
AB - The loading and environmental impacts of new-generation wide-base tires (NG-WBT) and dual tire assemblies (DTA) on typical asphalt concrete (AC) pavement sections of New Brunswick, Canada were evaluated using finite element method (FEM) analysis and life-cycle assessment. The impact of steering wheel was not considered in this study. The analysis considered realistic material models and loading conditions (i.e. AC viscoelastic characteristics and measured three-dimensional nonuniform tire–pavement contact loads). Predicted critical pavement responses were used in transfer functions to determine potential pavement damage. The NG-WBT loading resulted in greater critical pavement responses compared to that of DTA, especially near the surface (e.g. Vertical shear strains in AC). On the other hand, subgrade response (i.e. maximum vertical strains) to loading was similar for both tire configurations. NG-WBT market penetrations and pavement service life are inversely related. For example, an NG-WBT market penetration of 20% resulted in an 8% greater pavement damage. However, the higher the NG-WBT market penetration is, the greater fuel savings and, therefore, the fewer the emissions and greenhouse gases. Hence, both structural and environmental impacts must be considered.
KW - critical responses
KW - dual-tire assembly
KW - finite element method
KW - life-cycle assessment
KW - market penetration
KW - new-generation wide-base tires
UR - http://www.scopus.com/inward/record.url?scp=85091484276&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85091484276&partnerID=8YFLogxK
U2 - 10.1080/14680629.2019.1590219
DO - 10.1080/14680629.2019.1590219
M3 - Article
AN - SCOPUS:85091484276
SN - 1468-0629
VL - 21
SP - 1968
EP - 1984
JO - Road Materials and Pavement Design
JF - Road Materials and Pavement Design
IS - 7
ER -