Influence of Different Warm Mix Additives on Characteristics of Warm Mix Asphalt
The interest in minimising fuel consumption and greenhouse gas emissions among road specialists is increasing. Thus, methods for reducing asphalt concrete mixing and compaction temperatures by a few tens of degrees Celsius without compromising the long-term performance has become a topic of signific...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-06-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/13/3534 |
| _version_ | 1797412052176732160 |
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| author | Anda Ligia Belc Erdem Coleri Florin Belc Ciprian Costescu |
| author_facet | Anda Ligia Belc Erdem Coleri Florin Belc Ciprian Costescu |
| author_sort | Anda Ligia Belc |
| collection | DOAJ |
| description | The interest in minimising fuel consumption and greenhouse gas emissions among road specialists is increasing. Thus, methods for reducing asphalt concrete mixing and compaction temperatures by a few tens of degrees Celsius without compromising the long-term performance has become a topic of significant interest. This study is focused on the analysis of warm mix asphalt (WMA) prepared with locally available materials in order to determine the suitable technology applicable to the specific traffic and climatic conditions of Romania. WMA was prepared using different warm mix additives (organic additives, chemical additive, and synthetic zeolite) at different mixing and compaction temperatures, and bitumen blends with these additives were analysed by carrying out the dynamic shear rheometer test and evaluating the penetration index. In conclusion it was noted that most additives did not lead to a significant change of bitumen’s characteristics, but the organic additive had a big influence on the bitumen’s properties. The characteristics of WMA are very similar to those of HMA. The mixing and compaction temperatures could be reduced by approximately 40 °C when WMA was blended with the additives without compromising the performance of the asphalt mixture, compared to hot mix asphalt. |
| first_indexed | 2024-03-09T04:55:24Z |
| format | Article |
| id | doaj.art-bf76a7bd242940d8b6e4a436b1c8767f |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T04:55:24Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-bf76a7bd242940d8b6e4a436b1c8767f2023-12-03T13:06:07ZengMDPI AGMaterials1996-19442021-06-011413353410.3390/ma14133534Influence of Different Warm Mix Additives on Characteristics of Warm Mix AsphaltAnda Ligia Belc0Erdem Coleri1Florin Belc2Ciprian Costescu3Faculty of Civil Engineering, Politehnica University Timisoara, 300006 Timisoara, RomaniaSchool of Civil and Construction Engineering, Oregon State University, Corvallis, OR 97331, USAFaculty of Civil Engineering, Politehnica University Timisoara, 300006 Timisoara, RomaniaFaculty of Civil Engineering, Politehnica University Timisoara, 300006 Timisoara, RomaniaThe interest in minimising fuel consumption and greenhouse gas emissions among road specialists is increasing. Thus, methods for reducing asphalt concrete mixing and compaction temperatures by a few tens of degrees Celsius without compromising the long-term performance has become a topic of significant interest. This study is focused on the analysis of warm mix asphalt (WMA) prepared with locally available materials in order to determine the suitable technology applicable to the specific traffic and climatic conditions of Romania. WMA was prepared using different warm mix additives (organic additives, chemical additive, and synthetic zeolite) at different mixing and compaction temperatures, and bitumen blends with these additives were analysed by carrying out the dynamic shear rheometer test and evaluating the penetration index. In conclusion it was noted that most additives did not lead to a significant change of bitumen’s characteristics, but the organic additive had a big influence on the bitumen’s properties. The characteristics of WMA are very similar to those of HMA. The mixing and compaction temperatures could be reduced by approximately 40 °C when WMA was blended with the additives without compromising the performance of the asphalt mixture, compared to hot mix asphalt.https://www.mdpi.com/1996-1944/14/13/3534warm mix asphaltbitumenorganic additivechemical additivesynthetic zeoliteMarshall test |
| spellingShingle | Anda Ligia Belc Erdem Coleri Florin Belc Ciprian Costescu Influence of Different Warm Mix Additives on Characteristics of Warm Mix Asphalt Materials warm mix asphalt bitumen organic additive chemical additive synthetic zeolite Marshall test |
| title | Influence of Different Warm Mix Additives on Characteristics of Warm Mix Asphalt |
| title_full | Influence of Different Warm Mix Additives on Characteristics of Warm Mix Asphalt |
| title_fullStr | Influence of Different Warm Mix Additives on Characteristics of Warm Mix Asphalt |
| title_full_unstemmed | Influence of Different Warm Mix Additives on Characteristics of Warm Mix Asphalt |
| title_short | Influence of Different Warm Mix Additives on Characteristics of Warm Mix Asphalt |
| title_sort | influence of different warm mix additives on characteristics of warm mix asphalt |
| topic | warm mix asphalt bitumen organic additive chemical additive synthetic zeolite Marshall test |
| url | https://www.mdpi.com/1996-1944/14/13/3534 |
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