| 沥青与沥青组分的差示扫描量热研究 |
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| 引用本文： | 陈华鑫,贺孟霜,李媛媛,颜赫.沥青与沥青组分的差示扫描量热研究[J].重庆交通大学学报(自然科学版),2013,32(2). |
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| 作者姓名： | 陈华鑫 贺孟霜 李媛媛 颜赫 |
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| 作者单位： | 长安大学材料科学与工程学院,陕西西安,710064 |
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| 基金项目： | 中央高校基本科研业务费专项基金项目 |
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| 摘 要： | 采用沥青组分分析法和差示扫描量热仪(DSC)从微观上分析沥青的性质。试验选取ESSO 90#基质沥青及RTFO(旋转薄膜烘箱)/PAV(压力老化)基质沥青,研究了沥青的沥青质、饱和分、芳香分和胶质四组分。结果表明:DSC能较好的描述沥青内部相态随温度的变化,并与沥青宏观上的三大指标保持一致;沥青质、胶质对沥青的高温性能有影响,饱和分、芳香分对沥青的低温性能有影响;饱和分对沥青性质的影响很大。
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| 关 键 词： | 沥青组分 差示扫描量热仪 老化 |
DSC Analysis on Asphalt and Asphalt Fractions |
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| Chen Huaxin
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He Mengshuang
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Li Yuanyuan
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Yan He.DSC Analysis on Asphalt and Asphalt Fractions[J].Journal of Chongqing Jiaotong University,2013,32(2). |
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| Authors: | Chen Huaxin He Mengshuang Li Yuanyuan Yan He |
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| Abstract: | Asphalt fraction analysis and DSC(Differential Scanning Calorimetry) instrument were adopted to analyze the property of the asphalt from the microscopic.ESSO 90 # matrix asphalt and RTFO(Rotary Film Oven) / PAV(Pressure Aging) matrix asphalt were selected,and the asphalt four fractions(asphaltene,saturates,aromatics,colloid) were studied during the test.The results show that: DSC can better describe internal phase state of asphalt changing with temperature,and remain consistent with the three major asphalt macro indicators;asphaltene and colloid affect the high temperature performance of asphalt.Saturates and aromatics affect the low temperature performance of asphalt;saturates has an significant impaction on asphalt property. |
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| Keywords: | asphalt fraction differential scanning calorimetry(DSC) aging |
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