Enhancing hydraulic and environmental performance of interlocking pervious concrete pavement systems through layer configuration optimization
The hydraulic performance of pervious pavement systems (PCPS) depends on the hydraulic interaction between the layers that compose them, considering both permeability and the ability to remove pollutants. This interaction is more important than the isolated permeability of the surface layer. However...
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Elsevier
2024-12-01
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| Series: | Case Studies in Construction Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S221450952401204X |
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| author | Rael Ernani Wojahn Gersson F.B. Sandoval Allana Ribeiro Mendes Caio Victor Lourenço Rodrigues Berenice M. Toralles |
| author_facet | Rael Ernani Wojahn Gersson F.B. Sandoval Allana Ribeiro Mendes Caio Victor Lourenço Rodrigues Berenice M. Toralles |
| author_sort | Rael Ernani Wojahn |
| collection | DOAJ |
| description | The hydraulic performance of pervious pavement systems (PCPS) depends on the hydraulic interaction between the layers that compose them, considering both permeability and the ability to remove pollutants. This interaction is more important than the isolated permeability of the surface layer. However, there is limited knowledge on how these interactions between layers influence overall system efficiency, particularly concerning tortuosity and the risk of internal erosion. This study aims to evaluate the hydraulic performance and pollutant removal capabilities of interlocking pervious concrete pavement systems (PCPS) by analyzing the influence of different boundary layer configurations. Twelve configurations, including one reference and eleven variations, were tested to examine the hydraulic interactions and compatibility between layers. The results showed that all simulated PCPS configurations exhibited higher permeability than the reference. Among the two-layer systems, the FS-B configuration demonstrated the highest permeability (0.23 mm/s), while the FS-A-B configuration excelled among the three-layer systems (0.19 mm/s). These findings emphasize the importance of the maximum grain diameter in the bottom layer, where larger diameters (19 mm) enhanced system permeability. Additionally, the study highlights that hydraulic interaction among layers, rather than just the surface material's permeability, is crucial for overall system efficiency. Furthermore, the systems effectively reduced turbidity by 71 % (FS-SD-B) and ammoniacal nitrogen by 96 % (FS-A-B) compared to the reference. These findings suggest that optimizing granular layer configurations can enhance both hydraulic and environmental performance, positioning PCPS as a viable solution for sustainable urban drainage systems. The research provides valuable insights into the design and construction of PCPS, emphasizing the importance of material selection and layer configuration in achieving optimal hydraulic performance and pollutant removal (equilibrium). The configuration of layers directly influences tortuosity, which explains hydraulic efficiency. Additionally, turbulent flow due to the accumulated hydraulic gradient can lead to erosion processes and the movement of fines, clogging the pores of the layers and contributing to an overall loss of permeability. |
| format | Article |
| id | doaj-art-a73e41a57ea94ec5baf1825e543e7a04 |
| institution | Kabale University |
| issn | 2214-5095 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj-art-a73e41a57ea94ec5baf1825e543e7a042024-12-11T05:56:38ZengElsevierCase Studies in Construction Materials2214-50952024-12-0121e04052Enhancing hydraulic and environmental performance of interlocking pervious concrete pavement systems through layer configuration optimizationRael Ernani Wojahn0Gersson F.B. Sandoval1Allana Ribeiro Mendes2Caio Victor Lourenço Rodrigues3Berenice M. Toralles4State University of Londrina, Civil Construction Department, State University of Londrina, Londrina, Paraná, BrazilUniversidad Católica del Norte, Departamento de Gestión de la Construcción, Angamos, Antofagasta 0610, Chile; Corresponding author.State University of Londrina, Civil Construction Department, State University of Londrina, Londrina, Paraná, BrazilState University of Londrina, Civil Construction Department, Celso Garcia Road Pr 445 km 380, Londrina, Paraná, BrazilState University of Londrina, Civil Construction Department, Celso Garcia Road Pr 445 km 380, Londrina, Paraná, BrazilThe hydraulic performance of pervious pavement systems (PCPS) depends on the hydraulic interaction between the layers that compose them, considering both permeability and the ability to remove pollutants. This interaction is more important than the isolated permeability of the surface layer. However, there is limited knowledge on how these interactions between layers influence overall system efficiency, particularly concerning tortuosity and the risk of internal erosion. This study aims to evaluate the hydraulic performance and pollutant removal capabilities of interlocking pervious concrete pavement systems (PCPS) by analyzing the influence of different boundary layer configurations. Twelve configurations, including one reference and eleven variations, were tested to examine the hydraulic interactions and compatibility between layers. The results showed that all simulated PCPS configurations exhibited higher permeability than the reference. Among the two-layer systems, the FS-B configuration demonstrated the highest permeability (0.23 mm/s), while the FS-A-B configuration excelled among the three-layer systems (0.19 mm/s). These findings emphasize the importance of the maximum grain diameter in the bottom layer, where larger diameters (19 mm) enhanced system permeability. Additionally, the study highlights that hydraulic interaction among layers, rather than just the surface material's permeability, is crucial for overall system efficiency. Furthermore, the systems effectively reduced turbidity by 71 % (FS-SD-B) and ammoniacal nitrogen by 96 % (FS-A-B) compared to the reference. These findings suggest that optimizing granular layer configurations can enhance both hydraulic and environmental performance, positioning PCPS as a viable solution for sustainable urban drainage systems. The research provides valuable insights into the design and construction of PCPS, emphasizing the importance of material selection and layer configuration in achieving optimal hydraulic performance and pollutant removal (equilibrium). The configuration of layers directly influences tortuosity, which explains hydraulic efficiency. Additionally, turbulent flow due to the accumulated hydraulic gradient can lead to erosion processes and the movement of fines, clogging the pores of the layers and contributing to an overall loss of permeability.http://www.sciencedirect.com/science/article/pii/S221450952401204XPervious pavementGranular layersHydraulic behaviorLayer interactionPollutant removal |
| spellingShingle | Rael Ernani Wojahn Gersson F.B. Sandoval Allana Ribeiro Mendes Caio Victor Lourenço Rodrigues Berenice M. Toralles Enhancing hydraulic and environmental performance of interlocking pervious concrete pavement systems through layer configuration optimization Case Studies in Construction Materials Pervious pavement Granular layers Hydraulic behavior Layer interaction Pollutant removal |
| title | Enhancing hydraulic and environmental performance of interlocking pervious concrete pavement systems through layer configuration optimization |
| title_full | Enhancing hydraulic and environmental performance of interlocking pervious concrete pavement systems through layer configuration optimization |
| title_fullStr | Enhancing hydraulic and environmental performance of interlocking pervious concrete pavement systems through layer configuration optimization |
| title_full_unstemmed | Enhancing hydraulic and environmental performance of interlocking pervious concrete pavement systems through layer configuration optimization |
| title_short | Enhancing hydraulic and environmental performance of interlocking pervious concrete pavement systems through layer configuration optimization |
| title_sort | enhancing hydraulic and environmental performance of interlocking pervious concrete pavement systems through layer configuration optimization |
| topic | Pervious pavement Granular layers Hydraulic behavior Layer interaction Pollutant removal |
| url | http://www.sciencedirect.com/science/article/pii/S221450952401204X |
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