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Exploring the Utilization of PHC Pile Waste Concrete as Filler in Asphalt Mastics

Using solid waste to replace limestone filler in asphalt concrete can not only reduce the cost of road construction, but also improve the utilization rate of solid waste. In this study, PHC pile waste concrete (PPWC) was innovatively used to replace limestone filler in asphalt mixture and its effect...

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Detalles Bibliográficos
Autores principales: Tu, Botao, Yang, Xinkui, Xu, Shi, Liang, Xuhui, Liu, Chen, Jiang, Jian, Fan, Lulu, Tu, Liangliang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10672930/
https://www.ncbi.nlm.nih.gov/pubmed/38005086
http://dx.doi.org/10.3390/ma16227158
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author Tu, Botao
Yang, Xinkui
Xu, Shi
Liang, Xuhui
Liu, Chen
Jiang, Jian
Fan, Lulu
Tu, Liangliang
author_facet Tu, Botao
Yang, Xinkui
Xu, Shi
Liang, Xuhui
Liu, Chen
Jiang, Jian
Fan, Lulu
Tu, Liangliang
author_sort Tu, Botao
collection PubMed
description Using solid waste to replace limestone filler in asphalt concrete can not only reduce the cost of road construction, but also improve the utilization rate of solid waste. In this study, PHC pile waste concrete (PPWC) was innovatively used to replace limestone filler in asphalt mixture and its effect on the physical and rheological properties of asphalt mastics was studied. Firstly, PPWC was ground into filler particles with a diameter less than 0.075 mm. The physical properties, particle characteristics and chemical composition of PPWC filler and limestone filler were compared. Asphalt mastics were prepared with different filler-asphalt volume ratios (20%, 30% and 40%) and the physical properties, high-temperature rheological properties and low-temperature cracking resistance of asphalt mastics were tested. The experimental results showed that the surface of PPWC filler is rougher and has lower density and smaller particle size than limestone filler. When the filler content is the same, PPWC filler asphalt mastics have lower penetration and ductility, higher softening point than limestone filler asphalt mastics, and the viscosity of PPWC filler asphalt mastics is more sensitive than limestone filler asphalt mastics. PPWC filler asphalt mastics demonstrated superior high-temperature stability, but poorer low-temperature cracking resistance compared to limestone filler asphalt mastics. In conclusion, PPWC fillers can be used to replace limestone fillers in asphalt mixtures. The finding of this study will provide a new solution for the construction of eco-friendly roads.
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spelling pubmed-106729302023-11-14 Exploring the Utilization of PHC Pile Waste Concrete as Filler in Asphalt Mastics Tu, Botao Yang, Xinkui Xu, Shi Liang, Xuhui Liu, Chen Jiang, Jian Fan, Lulu Tu, Liangliang Materials (Basel) Article Using solid waste to replace limestone filler in asphalt concrete can not only reduce the cost of road construction, but also improve the utilization rate of solid waste. In this study, PHC pile waste concrete (PPWC) was innovatively used to replace limestone filler in asphalt mixture and its effect on the physical and rheological properties of asphalt mastics was studied. Firstly, PPWC was ground into filler particles with a diameter less than 0.075 mm. The physical properties, particle characteristics and chemical composition of PPWC filler and limestone filler were compared. Asphalt mastics were prepared with different filler-asphalt volume ratios (20%, 30% and 40%) and the physical properties, high-temperature rheological properties and low-temperature cracking resistance of asphalt mastics were tested. The experimental results showed that the surface of PPWC filler is rougher and has lower density and smaller particle size than limestone filler. When the filler content is the same, PPWC filler asphalt mastics have lower penetration and ductility, higher softening point than limestone filler asphalt mastics, and the viscosity of PPWC filler asphalt mastics is more sensitive than limestone filler asphalt mastics. PPWC filler asphalt mastics demonstrated superior high-temperature stability, but poorer low-temperature cracking resistance compared to limestone filler asphalt mastics. In conclusion, PPWC fillers can be used to replace limestone fillers in asphalt mixtures. The finding of this study will provide a new solution for the construction of eco-friendly roads. MDPI 2023-11-14 /pmc/articles/PMC10672930/ /pubmed/38005086 http://dx.doi.org/10.3390/ma16227158 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
Tu, Botao
Yang, Xinkui
Xu, Shi
Liang, Xuhui
Liu, Chen
Jiang, Jian
Fan, Lulu
Tu, Liangliang
Exploring the Utilization of PHC Pile Waste Concrete as Filler in Asphalt Mastics
title Exploring the Utilization of PHC Pile Waste Concrete as Filler in Asphalt Mastics
title_full Exploring the Utilization of PHC Pile Waste Concrete as Filler in Asphalt Mastics
title_fullStr Exploring the Utilization of PHC Pile Waste Concrete as Filler in Asphalt Mastics
title_full_unstemmed Exploring the Utilization of PHC Pile Waste Concrete as Filler in Asphalt Mastics
title_short Exploring the Utilization of PHC Pile Waste Concrete as Filler in Asphalt Mastics
title_sort exploring the utilization of phc pile waste concrete as filler in asphalt mastics
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10672930/
https://www.ncbi.nlm.nih.gov/pubmed/38005086
http://dx.doi.org/10.3390/ma16227158
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