The Combined Effects of Additives on the Conventional and High-Temperature Performance Properties of Warm Mix Asphalt Binders
The present study investigates the effects of the simultaneous use of two additives, an organosilane warm mix asphalt (WMA) agent and a grade-bumping polyolefin compound, on the conventional and high-temperature performance properties of a paving grade 50/70 bitumen and a polymer-modified 45/80-55 b...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-12-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/24/7648 |
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| author | Anna Chomicz-Kowalska Joanna Bartos Krzysztof Maciejewski Mateusz M. Iwański |
| author_facet | Anna Chomicz-Kowalska Joanna Bartos Krzysztof Maciejewski Mateusz M. Iwański |
| author_sort | Anna Chomicz-Kowalska |
| collection | DOAJ |
| description | The present study investigates the effects of the simultaneous use of two additives, an organosilane warm mix asphalt (WMA) agent and a grade-bumping polyolefin compound, on the conventional and high-temperature performance properties of a paving grade 50/70 bitumen and a polymer-modified 45/80-55 bitumen. The WMA agent and polyolefin additive were introduced to the binders at rates of up to 0.3% and 2%, respectively. The base asphalt binders and their blends with the additives were tested before and after aging in a rolling thin film oven test at a temperature of 143 °C. The effects of the investigated additives were found to be dependent on the type of base binder and its aging state. It was generally observed that the WMA additive decreased the performance of the asphalt binders and limited the effects of the other additive, which increased the high-temperature stiffness and non-recoverable compliance of the blends. This interaction amounted to as much as an approx. 20% decrease in high-temperature stiffness and non-recoverable compliance of the binders. The additives caused a small increase in the elasticity of the binders and improved their creep performance when measured in multiple stress creep recovery tests. |
| first_indexed | 2024-03-08T20:33:50Z |
| format | Article |
| id | doaj.art-638dcbb6256440afa2a79875c657e63f |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-08T20:33:50Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-638dcbb6256440afa2a79875c657e63f2023-12-22T14:22:56ZengMDPI AGMaterials1996-19442023-12-011624764810.3390/ma16247648The Combined Effects of Additives on the Conventional and High-Temperature Performance Properties of Warm Mix Asphalt BindersAnna Chomicz-Kowalska0Joanna Bartos1Krzysztof Maciejewski2Mateusz M. Iwański3Department of Transportation Engineering, Faculty of Civil Engineering and Architecture, Kielce University of Technology, 25-314 Kielce, PolandDepartment of Transportation Engineering, Faculty of Civil Engineering and Architecture, Kielce University of Technology, 25-314 Kielce, PolandDepartment of Transportation Engineering, Faculty of Civil Engineering and Architecture, Kielce University of Technology, 25-314 Kielce, PolandDepartment of Building Engineering Technologies and Organization, Faculty of Civil Engineering and Architecture, Kielce University of Technology, 25-314 Kielce, PolandThe present study investigates the effects of the simultaneous use of two additives, an organosilane warm mix asphalt (WMA) agent and a grade-bumping polyolefin compound, on the conventional and high-temperature performance properties of a paving grade 50/70 bitumen and a polymer-modified 45/80-55 bitumen. The WMA agent and polyolefin additive were introduced to the binders at rates of up to 0.3% and 2%, respectively. The base asphalt binders and their blends with the additives were tested before and after aging in a rolling thin film oven test at a temperature of 143 °C. The effects of the investigated additives were found to be dependent on the type of base binder and its aging state. It was generally observed that the WMA additive decreased the performance of the asphalt binders and limited the effects of the other additive, which increased the high-temperature stiffness and non-recoverable compliance of the blends. This interaction amounted to as much as an approx. 20% decrease in high-temperature stiffness and non-recoverable compliance of the binders. The additives caused a small increase in the elasticity of the binders and improved their creep performance when measured in multiple stress creep recovery tests.https://www.mdpi.com/1996-1944/16/24/7648paving grade bitumenpolymer-modified bitumencompaction aidwarm mix additivehigh-temperature stiffnessnon-recoverable creep compliance |
| spellingShingle | Anna Chomicz-Kowalska Joanna Bartos Krzysztof Maciejewski Mateusz M. Iwański The Combined Effects of Additives on the Conventional and High-Temperature Performance Properties of Warm Mix Asphalt Binders Materials paving grade bitumen polymer-modified bitumen compaction aid warm mix additive high-temperature stiffness non-recoverable creep compliance |
| title | The Combined Effects of Additives on the Conventional and High-Temperature Performance Properties of Warm Mix Asphalt Binders |
| title_full | The Combined Effects of Additives on the Conventional and High-Temperature Performance Properties of Warm Mix Asphalt Binders |
| title_fullStr | The Combined Effects of Additives on the Conventional and High-Temperature Performance Properties of Warm Mix Asphalt Binders |
| title_full_unstemmed | The Combined Effects of Additives on the Conventional and High-Temperature Performance Properties of Warm Mix Asphalt Binders |
| title_short | The Combined Effects of Additives on the Conventional and High-Temperature Performance Properties of Warm Mix Asphalt Binders |
| title_sort | combined effects of additives on the conventional and high temperature performance properties of warm mix asphalt binders |
| topic | paving grade bitumen polymer-modified bitumen compaction aid warm mix additive high-temperature stiffness non-recoverable creep compliance |
| url | https://www.mdpi.com/1996-1944/16/24/7648 |
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