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Mechanical Properties of Polyurethane Mixture and Load Response Behaviour of Polyurethane Composite Pavement
Finite element numerical simulation calculation of pavement structure load response is widely applied; however, there is still a lack of research on the polyurethane (PU) mixture composite pavement load response. The mechanical characteristics of PU mixture composite pavement are not well understood...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9862624/ https://www.ncbi.nlm.nih.gov/pubmed/36679296 http://dx.doi.org/10.3390/polym15020417 |
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author | Zhuang, Wei Bi, Yufeng Liu, Baoju Hou, Derui Jing, Shuo Lu, Xiaojin Sun, Min |
author_facet | Zhuang, Wei Bi, Yufeng Liu, Baoju Hou, Derui Jing, Shuo Lu, Xiaojin Sun, Min |
author_sort | Zhuang, Wei |
collection | PubMed |
description | Finite element numerical simulation calculation of pavement structure load response is widely applied; however, there is still a lack of research on the polyurethane (PU) mixture composite pavement load response. The mechanical characteristics of PU mixture composite pavement are not well understood, and there is a lack of research on typical pavement structures of PU mixtures, which limits their application in pavement structures. Therefore, herein, the mechanical properties of PU mixtures are analysed using the dynamic modulus test, uniaxial penetration test, and fatigue test. Further, the finite element theory calculation method is used to realize the load response calculation of orthogonal design composite pavement structure. The results show that PU mixtures exhibit more obvious elastic characteristics and have good shear resistance, fatigue stability, and temperature stability, and can be used as shear and anti-fatigue layers. The structure of ‘4 cm SMA-13 + 5 cm PUM-20 + 6 cm PUM-25 + semi-rigid base’ is recommended for the PU mixture composite structure. In comparison to typical asphalt pavement, the analysis shows that except for shear stress, temperature has little effect on the load response of PU composite pavement structures, while high temperatures lead to a significant increase in the load response of typical asphalt pavement structures. The PU composite pavement can bear greater loads and has a reduced thickness of its surface layer by about 3 cm in comparison to conventional pavement. The results of this study provide theoretical support for the design of PU mixture pavement structures and promote the popularization and application of PU mixture pavement. |
format | Online Article Text |
id | pubmed-9862624 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-98626242023-01-22 Mechanical Properties of Polyurethane Mixture and Load Response Behaviour of Polyurethane Composite Pavement Zhuang, Wei Bi, Yufeng Liu, Baoju Hou, Derui Jing, Shuo Lu, Xiaojin Sun, Min Polymers (Basel) Article Finite element numerical simulation calculation of pavement structure load response is widely applied; however, there is still a lack of research on the polyurethane (PU) mixture composite pavement load response. The mechanical characteristics of PU mixture composite pavement are not well understood, and there is a lack of research on typical pavement structures of PU mixtures, which limits their application in pavement structures. Therefore, herein, the mechanical properties of PU mixtures are analysed using the dynamic modulus test, uniaxial penetration test, and fatigue test. Further, the finite element theory calculation method is used to realize the load response calculation of orthogonal design composite pavement structure. The results show that PU mixtures exhibit more obvious elastic characteristics and have good shear resistance, fatigue stability, and temperature stability, and can be used as shear and anti-fatigue layers. The structure of ‘4 cm SMA-13 + 5 cm PUM-20 + 6 cm PUM-25 + semi-rigid base’ is recommended for the PU mixture composite structure. In comparison to typical asphalt pavement, the analysis shows that except for shear stress, temperature has little effect on the load response of PU composite pavement structures, while high temperatures lead to a significant increase in the load response of typical asphalt pavement structures. The PU composite pavement can bear greater loads and has a reduced thickness of its surface layer by about 3 cm in comparison to conventional pavement. The results of this study provide theoretical support for the design of PU mixture pavement structures and promote the popularization and application of PU mixture pavement. MDPI 2023-01-12 /pmc/articles/PMC9862624/ /pubmed/36679296 http://dx.doi.org/10.3390/polym15020417 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Zhuang, Wei Bi, Yufeng Liu, Baoju Hou, Derui Jing, Shuo Lu, Xiaojin Sun, Min Mechanical Properties of Polyurethane Mixture and Load Response Behaviour of Polyurethane Composite Pavement |
title | Mechanical Properties of Polyurethane Mixture and Load Response Behaviour of Polyurethane Composite Pavement |
title_full | Mechanical Properties of Polyurethane Mixture and Load Response Behaviour of Polyurethane Composite Pavement |
title_fullStr | Mechanical Properties of Polyurethane Mixture and Load Response Behaviour of Polyurethane Composite Pavement |
title_full_unstemmed | Mechanical Properties of Polyurethane Mixture and Load Response Behaviour of Polyurethane Composite Pavement |
title_short | Mechanical Properties of Polyurethane Mixture and Load Response Behaviour of Polyurethane Composite Pavement |
title_sort | mechanical properties of polyurethane mixture and load response behaviour of polyurethane composite pavement |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9862624/ https://www.ncbi.nlm.nih.gov/pubmed/36679296 http://dx.doi.org/10.3390/polym15020417 |
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