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Effects of Fiber Type on the Mechanical Properties of the Open-Graded Friction Course Mixture

[Image: see text] The open-graded friction courses (OGFCs) have a large number of interconnected voids, which may cause serious water damage to the pavement. Hence, the road performance needs to be investigated. In this study, the mechanical properties of OGFCs containing two different fibers (ligni...

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Autores principales: Wu, Mengmeng, Wang, Wanwan, Cai, Hongmei, Liang, Jilei, Hua, Jiawei, Dong, Haoyan, Zhao, Lin, Zhang, Yuzhen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2022
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9670291/
https://www.ncbi.nlm.nih.gov/pubmed/36406522
http://dx.doi.org/10.1021/acsomega.2c05139
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author Wu, Mengmeng
Wang, Wanwan
Cai, Hongmei
Liang, Jilei
Hua, Jiawei
Dong, Haoyan
Zhao, Lin
Zhang, Yuzhen
author_facet Wu, Mengmeng
Wang, Wanwan
Cai, Hongmei
Liang, Jilei
Hua, Jiawei
Dong, Haoyan
Zhao, Lin
Zhang, Yuzhen
author_sort Wu, Mengmeng
collection PubMed
description [Image: see text] The open-graded friction courses (OGFCs) have a large number of interconnected voids, which may cause serious water damage to the pavement. Hence, the road performance needs to be investigated. In this study, the mechanical properties of OGFCs containing two different fibers (lignin and mineral fiber) were investigated. Based on the procedure proposed by the Chinese specification JTG F40-2004, OGFCs were designed with the asphalt content between 4.1 and 4.7 wt % to find the optimal asphalt content (OAC). The mesh-basket draindown test was used to check the fiber’s stabilization and absorption of bitumen. OGFCs containing the lignin/mineral fiber with OAC would be preferred in terms of the bulk specific gravity. These results indicate that the fiber can bring higher air voids to the OGFCs, and the different specific gravities of fibers may primarily account for the result. Both the lignin and mineral fibers can bring much more asphalts padded in the pores of mineral aggregates and subsequently larger OAC in OGFCs due to their higher asphalt absorption. Performance experiments were carried out to check the dynamic stability and moisture susceptibility of OGFCs containing the lignin/mineral fiber. The study suggests that the lignin and mineral fiber can be used to adjust the internal environment of OGFCs, enhancing the moisture damage resistance and improving the rutting resistance of OGFCs at high temperatures.
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spelling pubmed-96702912022-11-18 Effects of Fiber Type on the Mechanical Properties of the Open-Graded Friction Course Mixture Wu, Mengmeng Wang, Wanwan Cai, Hongmei Liang, Jilei Hua, Jiawei Dong, Haoyan Zhao, Lin Zhang, Yuzhen ACS Omega [Image: see text] The open-graded friction courses (OGFCs) have a large number of interconnected voids, which may cause serious water damage to the pavement. Hence, the road performance needs to be investigated. In this study, the mechanical properties of OGFCs containing two different fibers (lignin and mineral fiber) were investigated. Based on the procedure proposed by the Chinese specification JTG F40-2004, OGFCs were designed with the asphalt content between 4.1 and 4.7 wt % to find the optimal asphalt content (OAC). The mesh-basket draindown test was used to check the fiber’s stabilization and absorption of bitumen. OGFCs containing the lignin/mineral fiber with OAC would be preferred in terms of the bulk specific gravity. These results indicate that the fiber can bring higher air voids to the OGFCs, and the different specific gravities of fibers may primarily account for the result. Both the lignin and mineral fibers can bring much more asphalts padded in the pores of mineral aggregates and subsequently larger OAC in OGFCs due to their higher asphalt absorption. Performance experiments were carried out to check the dynamic stability and moisture susceptibility of OGFCs containing the lignin/mineral fiber. The study suggests that the lignin and mineral fiber can be used to adjust the internal environment of OGFCs, enhancing the moisture damage resistance and improving the rutting resistance of OGFCs at high temperatures. American Chemical Society 2022-11-03 /pmc/articles/PMC9670291/ /pubmed/36406522 http://dx.doi.org/10.1021/acsomega.2c05139 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Wu, Mengmeng
Wang, Wanwan
Cai, Hongmei
Liang, Jilei
Hua, Jiawei
Dong, Haoyan
Zhao, Lin
Zhang, Yuzhen
Effects of Fiber Type on the Mechanical Properties of the Open-Graded Friction Course Mixture
title Effects of Fiber Type on the Mechanical Properties of the Open-Graded Friction Course Mixture
title_full Effects of Fiber Type on the Mechanical Properties of the Open-Graded Friction Course Mixture
title_fullStr Effects of Fiber Type on the Mechanical Properties of the Open-Graded Friction Course Mixture
title_full_unstemmed Effects of Fiber Type on the Mechanical Properties of the Open-Graded Friction Course Mixture
title_short Effects of Fiber Type on the Mechanical Properties of the Open-Graded Friction Course Mixture
title_sort effects of fiber type on the mechanical properties of the open-graded friction course mixture
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9670291/
https://www.ncbi.nlm.nih.gov/pubmed/36406522
http://dx.doi.org/10.1021/acsomega.2c05139
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