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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2009, Vol. 28 ›› Issue (3): 548-550.DOI: 10.3969/j.issn.1674-0696.2009.03.19

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SBS/岩沥青复合改性沥青基本性能研究

潘若妤1,孙晓民2,陈彦先2,陆晓中2   

  1. 1.北京化工大学材料科学与工程学院,北京100029;2.北京石油化工学院材料科学与工程系,北京102617
  • 收稿日期:2009-02-23 修回日期:2009-03-23 出版日期:2009-06-15 发布日期:2015-04-15
  • 作者简介:潘若妤(1986—),女,安徽灵璧人,硕士研究生,主要从事改性沥青研究方面的工作。Email:ancho@bipt.edu.cn。

Fundamental?Performance?of?SBS/Gilsonite??Composite?Modified?Asphalt

PAN Ruo-yu1, SUN Xiao-min2, CHEN Yan-xian2, LU Xiao-zhong2   

  1. 1.?School?of?Material?Science?＆?Engineering,?Beijing?University?of?Chemical?Technology,?Beijing?100029,?China;?2.?Department?of?Material?Science?＆?Engineering,?Beijing?Institute?of?Petrochemical?Technology,?Beijing?102617,?China
  • Received:2009-02-23 Revised:2009-03-23 Online:2009-06-15 Published:2015-04-15

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摘要： 通过SBS/岩沥青复合改性沥青的三大性能指标研究,分析了岩沥青和SBS的用量比变化对改性沥青性能的 影响规律。结果表明:在改性沥青中有效成分用量不变的情况下,随着其中岩沥青用量比例的不断增大,改性沥青 针入度的变化不大;改性沥青的软化点呈明显下降的趋势,即岩沥青与SBS复合改性对提高软化点的效果不如单 独应用SBS的效果好;改性沥青的延度呈明显下降的趋势,且改性沥青的15??延度的下降程度更为显著。适量添 加岩沥青可在一定程度上提高SBS在基质沥青中的分散性。

关键词: 道路工程, 改性沥青, 复合改性, 岩沥青, SBS, 软化点, 针入度, 延度

Abstract: The?influence?rule?of?the?proportion?of?SBS/gilsonite?on?performance?of?modified?asphalt?is?studied,?through?the?research?of?three?major?performance?indexes?of?SBS/gilsonite?composite?modified?asphalt.?The?results?show?that：?with?a?constant?amount?of?active?ingredient?in?modified?asphalt,?the?penetration?of?modified?asphalt?changes?little?when?the?proportion?of?gilsonite?increases;?the?softening?point?of?modified?asphalt?shows?a?downward?trend,?that?is?to?say,?the?effect?of?composite?of?gilsonite?and?SBS?on?the?improvement?of?softening?point?is?inferior?to?the?effect?of?SBS?itself;?the?ductility?of?modified?asphah?declines?significantly,?and?its?ductility?at?15℃?declines?even?sharply.?Adding?proper?amount?of?gilsonite?could?improve?the?dispersion?of?SBS?in?the?matrix?asphalt?to?some?extent

Key words: road engineering , modified asphalt , composite modification , gilsonite , SBS , softening point , penetration , ductility

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