TY - JOUR
T1 - Sustainable green pavement using bio-based polyurethane binder in tunnel
AU - Leng, Chao
AU - Lu, Guoyang
AU - Gao, Junling
AU - Liu, Pengfei
AU - Xie, Xiaoguang
AU - Wang, Dawei
N1 - Funding Information:
Funding: This project was carried out at the request of the German Research Foundation (DFG), under research project Grant No. OE 514/4-2 and Grant No. FOR 2089/2 (OE514/1-2).
Publisher Copyright:
© 2019 by the authors.
Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2019/6/1
Y1 - 2019/6/1
N2 - As a closed space, the functional requirements of the tunnel pavement are very different from ordinary pavements. In recent years, with the increase of requirements for tunnel pavement safety, comfort and environmental friendliness, asphalt pavement has become more and more widely used in long tunnels, due to its low noise, low dust, easy maintenance, and good comfort. However, conventional tunnel asphalt pavements cause significant safety and environmental concerns. The innovative polyurethane thin overlay (PTO) has been developed for the maintenance of existing roads and constructing new roads. Based on the previous study, the concept of PTO may be a feasible and effective way to enrich the innovative functions of tunnel pavement. In this paper, the research aims to evaluate the functional properties of PTO, such as noise reduction, solar reflection and especially combustion properties. Conventional asphalt (Open-graded Friction Course (OGFC) and Stone Mastic Asphalt (SMA)) and concrete pavement materials were used as control materials. Compared with conventional tunnel pavement materials, significant improvements were observed in functional properties and environmental performance. Therefore, this innovative wearing layer can potentially provide pavements with new eco-friendly functions. This study provides a comprehensive analysis of these environmentally friendly materials, paving the way for the possible application in tunnels, as well as some other fields, such as race tracks in stadiums.
AB - As a closed space, the functional requirements of the tunnel pavement are very different from ordinary pavements. In recent years, with the increase of requirements for tunnel pavement safety, comfort and environmental friendliness, asphalt pavement has become more and more widely used in long tunnels, due to its low noise, low dust, easy maintenance, and good comfort. However, conventional tunnel asphalt pavements cause significant safety and environmental concerns. The innovative polyurethane thin overlay (PTO) has been developed for the maintenance of existing roads and constructing new roads. Based on the previous study, the concept of PTO may be a feasible and effective way to enrich the innovative functions of tunnel pavement. In this paper, the research aims to evaluate the functional properties of PTO, such as noise reduction, solar reflection and especially combustion properties. Conventional asphalt (Open-graded Friction Course (OGFC) and Stone Mastic Asphalt (SMA)) and concrete pavement materials were used as control materials. Compared with conventional tunnel pavement materials, significant improvements were observed in functional properties and environmental performance. Therefore, this innovative wearing layer can potentially provide pavements with new eco-friendly functions. This study provides a comprehensive analysis of these environmentally friendly materials, paving the way for the possible application in tunnels, as well as some other fields, such as race tracks in stadiums.
KW - Combustion properties
KW - Noise reduction
KW - Polyurethane thin overlay
KW - Solar reflection
KW - Sustainable pavement material
KW - Tunnel pavement
UR - http://www.scopus.com/inward/record.url?scp=85067922571&partnerID=8YFLogxK
U2 - 10.3390/ma12121990
DO - 10.3390/ma12121990
M3 - Journal article
AN - SCOPUS:85067922571
VL - 12
JO - Materials
JF - Materials
SN - 1996-1944
IS - 12
M1 - 1990
ER -