Characterization and Evaluation Applications of Special Gender AsphaltEmulsifier for SBS Modified Micro-surfacing
[1]GA0 Li-ning,JIA Qin-long,YAN Yong,et al.Characterization and Evaluation Applications of Special Gender AsphaltEmulsifier for SBS Modified Micro-surfacing[J].Journal of Zhengzhou University (Engineering Science),2015,36(05):30-.[doi:10.3969/j.issn.1671-6833.2015.05.007]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
36
Number of periods:
2015 05
Page number:
30-
Column:
Public date:
2015-11-29
- Title:
- Characterization and Evaluation Applications of Special Gender AsphaltEmulsifier for SBS Modified Micro-surfacing
- CLC:
- U418.6
- Abstract:
- The properties of asphalt emulsifier in micro-surfacing are an issue of great importance for modifiedemulsified asphalt and mixture performance. In this paper,a kind of zwitterionic surfactant which can be usedfor asphalt emulsifier was synthesized by using oleic acid,polyamine,acid and alcohol containing chloride asstarting materials.The synthesized asphalt emulsifier was characterized by means of FT-IR,surface tensionand the calculated hydrophilic- lipophilic balance ( HLB) value. The properties of 5% SBS modified emulsionasphalt and the technical parameters of slurry mixtures were also tested. The results showed that the criticalmicelle concentration (CMC) of emulsifier was 2.63 ×10~3 mol/ L, the surface tension at CMC was 46.1l mV/m,and the calculated HLB value was 12.7. Furthermore, the modified emulsion asphalt showed the best perform-ance when the concentration of emulsifier was 1.5%,and the modified asphalt emulsion evaporation residue25 ℃ penetration was 6.2 mm,softening point was 78.5 ℃ , 5 ℃C ductility was 35 cm;micro-surfacing mix-ture 60 min cohesion value reached 2.4 N · m,moderate molding,1 h and 6 h soaking wet wheel abrasionvalues were to meet regulatory requirements.
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