[1]肖晶晶,郑南翔,宋哲玉..乳化剂对改性乳化沥青性能影响及机理研究[J].郑州大学学报(工学版),2008,29(03):5-9.[doi:10.3969/j.issn.1671-6833.2008.03.002]
　Xiao Jingjing,ZHENG Nanxiang,Song Zheyu.Study on the effect and mechanism of emulsifier on the properties of modified emulsified asphalt[J].Journal of Zhengzhou University (Engineering Science),2008,29(03):5-9.[doi:10.3969/j.issn.1671-6833.2008.03.002]

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乳化剂对改性乳化沥青性能影响及机理研究()

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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

29

期数:

2008年03期

页码:

5-9

栏目:

出版日期:

1900-01-01

文章信息/Info

Title:

Study on the effect and mechanism of emulsifier on the properties of modified emulsified asphalt

作者:

肖晶晶; 郑南翔; 宋哲玉.

长安大学,特殊地区公路工程教育部重点实验室,陕西,西安,710064, 长安大学,理学院,陕西,西安,710064

Author(s):

Xiao Jingjing; ZHENG Nanxiang; Song Zheyu

关键词:

改性乳化沥青;  乳化剂;  延度;  弹性恢复;  黏韧性;  动力黏度

Keywords:

modified emulsified bitumen;  emulsifiers;  ductility;  resilient recovery;  viscous toughness;  Power viscosity

DOI:

10.3969/j.issn.1671-6833.2008.03.002

文献标志码:

A

摘要:

采用3种不同的乳化剂AE、BE、CE,变化其剂量与SBR胶乳共同作用制备改性乳化沥青,并对乳液乳化效果及蒸发残留物性能进行试验研究.结果表明:当AE、BE、CE的剂量分别达到2.0%、1.2%、1.5%时,三者时SK-90均有良好的乳化效果.残留物5℃延度指标表明,三者对沥青材料性能的影响依次为提高、保持、降低.残留物弹性恢复、黏韧性及韧性、60 ℃动力黏度等指标的检验,对于微表处用原材料的质量控制具有重要意义.研究表明,当乳液其它指标均满足规范要求时,其残留物60℃动力黏度难以达到国外标准"≮800 Pa·s"的要求,建议我国将弹性恢复、黏韧性、韧性、动力黏度等技术要求逐步列入相关规范.

Abstract:

Three different emulsifiers AE, BE and CE were used to prepare modified emulsified bitumen by changing their dosages and SBR latex, and the emulsification effect and evaporation residue properties of the emulsion were experimentally studied. The results showed that SK-3 had good emulsification effect when the doses of AE, BE and CE reached 2.0%, 1.2% and 1.5%, respectively. The 90°C ductility index of residue showed that the effects of the three on the properties of asphalt materials were improved, maintained and reduced. The inspection of residual elastic recovery, viscosity and toughness, dynamic viscosity at 5 °C and other indicators is of great significance for the quality control of raw materials used at microsurfaces. The results show that when other indicators of the emulsion meet the requirements of the specification, the dynamic viscosity of the residue at 60°C is difficult to meet the requirements of the foreign standard "≮60 Pa·s", and it is recommended that the technical requirements such as elastic recovery, viscosity, toughness, and dynamic viscosity in China be gradually included in the relevant specifications.

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