Experimental study of temperature effect on the mechanical tensile fatigue of hydrated lime modified asphalt concrete and case application for the analysis of climatic effect on constructed pavement
Previous experimental studies have suggested that hot mixed asphalt (HMA) concrete using hydrated lime (HL) to partially replace the conventional limestone dust filler at 2.5% by the total weight of all aggregates showed an optimum improvement on several key mechanical properties, fatigue life span...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-12-01
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| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509522007549 |
| _version_ | 1811243562594992128 |
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| author | Qinghua Wei Azedin Al Ashaibi Yu Wang Amjad Albayati Jonathan Haynes |
| author_facet | Qinghua Wei Azedin Al Ashaibi Yu Wang Amjad Albayati Jonathan Haynes |
| author_sort | Qinghua Wei |
| collection | DOAJ |
| description | Previous experimental studies have suggested that hot mixed asphalt (HMA) concrete using hydrated lime (HL) to partially replace the conventional limestone dust filler at 2.5% by the total weight of all aggregates showed an optimum improvement on several key mechanical properties, fatigue life span and moisture susceptibility. However, so far, the knowledge of the thermal response of the modified asphalt concrete and thermal influence on the durability of the pavement constructed are still relatively limited but important to inform pavement design. This paper, at first, reports an experimental study of the tensile fatigue life of HMA concrete mixes designed for wearing layer application. Tests were conducted under three different temperatures for five mixes of different HL contents and one with no use of HL. On the experimental data, temperature effect on material fatigue was characterized in terms of the S-N curve modelling parameters. At last, numerical modelling, set at a climatic scenario in the UK, was performed to analyse and compare the seasonal climatic thermal influence on the fatigue life of two pavement structures using and not using the HL modified HMA concrete. Both the experiment and modelling have demonstrated that the 2.5% HL HMA concrete largely enhances the fatigue life of the material and the constructed pavement. |
| first_indexed | 2024-04-12T14:09:32Z |
| format | Article |
| id | doaj.art-254c752b09e14d3593c81a02ea514e64 |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-04-12T14:09:32Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-254c752b09e14d3593c81a02ea514e642022-12-22T03:29:56ZengElsevierCase Studies in Construction Materials2214-50952022-12-0117e01622Experimental study of temperature effect on the mechanical tensile fatigue of hydrated lime modified asphalt concrete and case application for the analysis of climatic effect on constructed pavementQinghua Wei0Azedin Al Ashaibi1Yu Wang2Amjad Albayati3Jonathan Haynes4School of Civil Engineering, Chongqing Jiaotong University, Chongqing ChinaSchool of Science, Engineering & Environment, University of Salford, Manchester M5 4WT, UKSchool of Science, Engineering & Environment, University of Salford, Manchester M5 4WT, UK; Corresponding author.Department of Civil Engineering, University of Baghdad, IraqSchool of Civil Engineering, Chongqing Jiaotong University, Chongqing China; School of Science, Engineering & Environment, University of Salford, Manchester M5 4WT, UKPrevious experimental studies have suggested that hot mixed asphalt (HMA) concrete using hydrated lime (HL) to partially replace the conventional limestone dust filler at 2.5% by the total weight of all aggregates showed an optimum improvement on several key mechanical properties, fatigue life span and moisture susceptibility. However, so far, the knowledge of the thermal response of the modified asphalt concrete and thermal influence on the durability of the pavement constructed are still relatively limited but important to inform pavement design. This paper, at first, reports an experimental study of the tensile fatigue life of HMA concrete mixes designed for wearing layer application. Tests were conducted under three different temperatures for five mixes of different HL contents and one with no use of HL. On the experimental data, temperature effect on material fatigue was characterized in terms of the S-N curve modelling parameters. At last, numerical modelling, set at a climatic scenario in the UK, was performed to analyse and compare the seasonal climatic thermal influence on the fatigue life of two pavement structures using and not using the HL modified HMA concrete. Both the experiment and modelling have demonstrated that the 2.5% HL HMA concrete largely enhances the fatigue life of the material and the constructed pavement.http://www.sciencedirect.com/science/article/pii/S2214509522007549Asphalt pavementsHydrated lime additiveThermal stressFatigue Analysis |
| spellingShingle | Qinghua Wei Azedin Al Ashaibi Yu Wang Amjad Albayati Jonathan Haynes Experimental study of temperature effect on the mechanical tensile fatigue of hydrated lime modified asphalt concrete and case application for the analysis of climatic effect on constructed pavement Case Studies in Construction Materials Asphalt pavements Hydrated lime additive Thermal stress Fatigue Analysis |
| title | Experimental study of temperature effect on the mechanical tensile fatigue of hydrated lime modified asphalt concrete and case application for the analysis of climatic effect on constructed pavement |
| title_full | Experimental study of temperature effect on the mechanical tensile fatigue of hydrated lime modified asphalt concrete and case application for the analysis of climatic effect on constructed pavement |
| title_fullStr | Experimental study of temperature effect on the mechanical tensile fatigue of hydrated lime modified asphalt concrete and case application for the analysis of climatic effect on constructed pavement |
| title_full_unstemmed | Experimental study of temperature effect on the mechanical tensile fatigue of hydrated lime modified asphalt concrete and case application for the analysis of climatic effect on constructed pavement |
| title_short | Experimental study of temperature effect on the mechanical tensile fatigue of hydrated lime modified asphalt concrete and case application for the analysis of climatic effect on constructed pavement |
| title_sort | experimental study of temperature effect on the mechanical tensile fatigue of hydrated lime modified asphalt concrete and case application for the analysis of climatic effect on constructed pavement |
| topic | Asphalt pavements Hydrated lime additive Thermal stress Fatigue Analysis |
| url | http://www.sciencedirect.com/science/article/pii/S2214509522007549 |
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