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沥青与沥青组分的差示扫描量热研究

DOI: 10.3969/j.issn.1674-0696.2013.02.08, PP. 207-210

Keywords: 沥青组分,差示扫描量热仪,老化,asphaltfraction,differentialscanningcalorimetry(DSC),aging

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Abstract:

:?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ESSO90#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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