SGC Tests for Influence of Material Composition on Compaction Characteristic of Asphalt Mixtures
Compaction characteristic of the surface layer asphalt mixture (13-type gradation mixture) was studied using Superpave gyratory compactor (SGC) simulative compaction tests. Based on analysis of densification curve of gyratory compaction, influence rules of the contents of mineral aggregates of all s...
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| Language: | English |
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Wiley
2013-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2013/735640 |
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| _version_ | 1832548476719726592 |
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| author | Qun Chen Yuzhi Li |
| author_facet | Qun Chen Yuzhi Li |
| author_sort | Qun Chen |
| collection | DOAJ |
| description | Compaction characteristic of the surface layer asphalt mixture (13-type gradation mixture) was studied using Superpave gyratory compactor (SGC) simulative compaction tests. Based on analysis of densification curve of gyratory compaction, influence rules of the contents of mineral aggregates of all sizes and asphalt on compaction characteristic of asphalt mixtures were obtained. SGC Tests show that, for the mixture with a bigger content of asphalt, its density increases faster, that there is an optimal amount of fine aggregates for optimal compaction and that an appropriate amount of mineral powder will improve workability of mixtures, but overmuch mineral powder will make mixtures dry and hard. Conclusions based on SGC tests can provide basis for how to adjust material composition for improving compaction performance of asphalt mixtures, and for the designed asphalt mixture, its compaction performance can be predicted through these conclusions, which also contributes to the choice of compaction schemes. |
| format | Article |
| id | doaj-art-90e94f61378845ff87e2c06d8c66c733 |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-90e94f61378845ff87e2c06d8c66c7332025-02-03T06:13:54ZengWileyThe Scientific World Journal1537-744X2013-01-01201310.1155/2013/735640735640SGC Tests for Influence of Material Composition on Compaction Characteristic of Asphalt MixturesQun Chen0Yuzhi Li1School of Traffic and Transportation Engineering, Central South University, Railway Campus, Changsha 410075, ChinaChangsha University of Science and Technology, Changsha 410076, ChinaCompaction characteristic of the surface layer asphalt mixture (13-type gradation mixture) was studied using Superpave gyratory compactor (SGC) simulative compaction tests. Based on analysis of densification curve of gyratory compaction, influence rules of the contents of mineral aggregates of all sizes and asphalt on compaction characteristic of asphalt mixtures were obtained. SGC Tests show that, for the mixture with a bigger content of asphalt, its density increases faster, that there is an optimal amount of fine aggregates for optimal compaction and that an appropriate amount of mineral powder will improve workability of mixtures, but overmuch mineral powder will make mixtures dry and hard. Conclusions based on SGC tests can provide basis for how to adjust material composition for improving compaction performance of asphalt mixtures, and for the designed asphalt mixture, its compaction performance can be predicted through these conclusions, which also contributes to the choice of compaction schemes.http://dx.doi.org/10.1155/2013/735640 |
| spellingShingle | Qun Chen Yuzhi Li SGC Tests for Influence of Material Composition on Compaction Characteristic of Asphalt Mixtures The Scientific World Journal |
| title | SGC Tests for Influence of Material Composition on Compaction Characteristic of Asphalt Mixtures |
| title_full | SGC Tests for Influence of Material Composition on Compaction Characteristic of Asphalt Mixtures |
| title_fullStr | SGC Tests for Influence of Material Composition on Compaction Characteristic of Asphalt Mixtures |
| title_full_unstemmed | SGC Tests for Influence of Material Composition on Compaction Characteristic of Asphalt Mixtures |
| title_short | SGC Tests for Influence of Material Composition on Compaction Characteristic of Asphalt Mixtures |
| title_sort | sgc tests for influence of material composition on compaction characteristic of asphalt mixtures |
| url | http://dx.doi.org/10.1155/2013/735640 |
| work_keys_str_mv | AT qunchen sgctestsforinfluenceofmaterialcompositiononcompactioncharacteristicofasphaltmixtures AT yuzhili sgctestsforinfluenceofmaterialcompositiononcompactioncharacteristicofasphaltmixtures |