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《Journal of Fushun Petroleum Institute》 2002-02
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The Relationship Between Composition and Use Characteristics of Age Asphalt

DAI Yue-ling, LIU Dao-sheng, YANG Peng, YAN Feng,WEI Yi, GAO Zhi-rong,LIAO Ke-jian ( Petrochemical Engineering Faculty, Fushun Petroleum Institute,Liaoning Fushun 113001, China)  
The asphalt was divided into four fractions by alumina containing 1% water used as adsorbent liquid adsorption chromatography with normal n -heptane precipitation, they were saturates, aromatics, resins and asphaltene. The transformative relationship that the composition of asphalt influences on use characteristic of asphalt could be educed by observation, that is, when asphalt ages, saturates hydrocarbon decreased little and aromatics and resins decreased, whereas asphaltene increased evidently. Aromatics and resins change considerably in their composition. Meanwhile, softening increased in the light of line, penetration decreased in term of index, and so does ductility. The asphalt containing more asphaltene had higher softening,smaller penetration and lower ductility. Resins make asphalt good plasticity and adhesiveness. Saturation and aromatics affect the ductility of asphalt at low temperature. Thus it is the key to the analysis, production and other techniques of high grade paving asphalt.
【Fund】: 中石化集团公司资助课题 (J10 0 0 0 8)
【CateGory Index】: TE626.86
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