Effect of Geo-Grid Depth in Roads Cross-Section on Reducing Pavement Rutting
Pavement structures cover vast areas of urban cities and non-urban roads and play a key role in daily commuting functionality and economic development; therefore, they must be conserved against any distress. The rutting problem, being a major distress to the pavement structure, must be solved and de...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | Eng |
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| Online Access: | https://www.mdpi.com/2673-4117/3/1/1 |
| _version_ | 1811272533060616192 |
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| author | Fawaz Alharbi Ahmed Almoshaigeh Meshal Almoshaogeh Ahmed Elragi Sherif Elkholy |
| author_facet | Fawaz Alharbi Ahmed Almoshaigeh Meshal Almoshaogeh Ahmed Elragi Sherif Elkholy |
| author_sort | Fawaz Alharbi |
| collection | DOAJ |
| description | Pavement structures cover vast areas of urban cities and non-urban roads and play a key role in daily commuting functionality and economic development; therefore, they must be conserved against any distress. The rutting problem, being a major distress to the pavement structure, must be solved and dealt with in order to preserve its value. One way of solving this dilemma is by using geo-grids within the pavement structure. A geo-grid is a synthetic material usually made from polymers with different thicknesses and stiffnesses. This paper investigates the effects of geo-grids on reducing the rutting occurrence through adding a layer of geo-grid with certain properties at different levels of the pavement structure. We also investigate, the result of the added geo-grid material to the developed vertical stresses within the pavement cross-section. This investigation is conducted by constructing a 3-D finite elements-based (FE) model of a pavement cross-section using ANSYS software; student version R1 2021. The FE-based model is validated by comparing its numerical predictions with the experimental results acquired from an accelerated large-scale paved model. The results show that the deeper the geo-grid is positioned, the more significant the rutting resistance is observed due to the stiffness of the geo-grid bearing the tensile force until a certain depth. Moreover, noticeable stress reduction is seen in the developed vertical compressive stresses below the loading area resisted by the geo-grid. |
| first_indexed | 2024-04-12T22:40:56Z |
| format | Article |
| id | doaj.art-e6a19f6521004d81a1e3c8bb267d74b0 |
| institution | Directory Open Access Journal |
| issn | 2673-4117 |
| language | English |
| last_indexed | 2024-04-12T22:40:56Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Eng |
| spelling | doaj.art-e6a19f6521004d81a1e3c8bb267d74b02022-12-22T03:13:43ZengMDPI AGEng2673-41172021-12-01311810.3390/eng3010001Effect of Geo-Grid Depth in Roads Cross-Section on Reducing Pavement RuttingFawaz Alharbi0Ahmed Almoshaigeh1Meshal Almoshaogeh2Ahmed Elragi3Sherif Elkholy4Department of Civil Engineering, College of Engineering, Qassim University, Buraydah 51452, Saudi ArabiaDepartment of Civil Engineering, College of Engineering, Qassim University, Buraydah 51452, Saudi ArabiaDepartment of Civil Engineering, College of Engineering, Qassim University, Buraydah 51452, Saudi ArabiaDepartment of Civil Engineering, College of Engineering, Qassim University, Buraydah 51452, Saudi ArabiaDepartment of Civil Engineering, College of Engineering, Qassim University, Buraydah 51452, Saudi ArabiaPavement structures cover vast areas of urban cities and non-urban roads and play a key role in daily commuting functionality and economic development; therefore, they must be conserved against any distress. The rutting problem, being a major distress to the pavement structure, must be solved and dealt with in order to preserve its value. One way of solving this dilemma is by using geo-grids within the pavement structure. A geo-grid is a synthetic material usually made from polymers with different thicknesses and stiffnesses. This paper investigates the effects of geo-grids on reducing the rutting occurrence through adding a layer of geo-grid with certain properties at different levels of the pavement structure. We also investigate, the result of the added geo-grid material to the developed vertical stresses within the pavement cross-section. This investigation is conducted by constructing a 3-D finite elements-based (FE) model of a pavement cross-section using ANSYS software; student version R1 2021. The FE-based model is validated by comparing its numerical predictions with the experimental results acquired from an accelerated large-scale paved model. The results show that the deeper the geo-grid is positioned, the more significant the rutting resistance is observed due to the stiffness of the geo-grid bearing the tensile force until a certain depth. Moreover, noticeable stress reduction is seen in the developed vertical compressive stresses below the loading area resisted by the geo-grid.https://www.mdpi.com/2673-4117/3/1/1asphaltpavementfinite elementmodelingruttinggeogrid |
| spellingShingle | Fawaz Alharbi Ahmed Almoshaigeh Meshal Almoshaogeh Ahmed Elragi Sherif Elkholy Effect of Geo-Grid Depth in Roads Cross-Section on Reducing Pavement Rutting Eng asphalt pavement finite element modeling rutting geogrid |
| title | Effect of Geo-Grid Depth in Roads Cross-Section on Reducing Pavement Rutting |
| title_full | Effect of Geo-Grid Depth in Roads Cross-Section on Reducing Pavement Rutting |
| title_fullStr | Effect of Geo-Grid Depth in Roads Cross-Section on Reducing Pavement Rutting |
| title_full_unstemmed | Effect of Geo-Grid Depth in Roads Cross-Section on Reducing Pavement Rutting |
| title_short | Effect of Geo-Grid Depth in Roads Cross-Section on Reducing Pavement Rutting |
| title_sort | effect of geo grid depth in roads cross section on reducing pavement rutting |
| topic | asphalt pavement finite element modeling rutting geogrid |
| url | https://www.mdpi.com/2673-4117/3/1/1 |
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