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| 论文编号: |
122214O120120321 |
| 第一作者所在部门: |
904组 |
| 中文论文题目: |
Comparison study of modified asphalt by different coal liquefaction residues and different preparation methods
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| 英文论文题目: |
Comparison study of modified asphalt by different coal liquefaction residues and different preparation methods
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| 论文题目英文: |
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| 作者: |
武蒙蒙 *杨建丽 张玉贞
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| 论文出处: |
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| 刊物名称: |
Fuel
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| 年: |
2011
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| 卷: |
0 |
| 期: |
100 |
| 页: |
66 |
| 联系作者: |
武蒙蒙 *杨建丽 张玉贞 |
| 收录类别: |
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| 影响因子: |
3.248
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| 摘要: |
The performance of four coal liquefaction residues (CLRs) in modi？cation of petroleum paving asphalts were investigated. The 40–55 penetration grade modi？ed asphalts were made. ASTM D5710-95 speci？-cations were used to evaluate the modi？ed asphalts. The in？uence of chemical composition and prepa-ration methods were studied. The results indicate that the performance of CLR mainly depends on the amount and type of its miscible fraction that can dissolve or melt into the base asphalt. The addition of different CLRs in the base asphalt by a conventional hot mixing method results in the similar changes with respect to the softening point and penetration. However, it leads to the different change in ductility. The morphology analysis of the modi？ed asphalt shows that the immiscibles from CLR are dispersed or suspended as single or clustered particles in the continuous asphalt phase. The miscibles of CLR in the base asphalt are active ingredients participating in the modi？cation. The amount and the average molec-ular weight of CLR’s tetrahydrofuran solubles have a close relationship with its performance. The disso-lution or dispersion of CLR can be greatly improved with the help of solvent. |
| 英文摘要: |
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