Properties and mechanism of flame retardance and smoke suppression in asphalt binder containing organic montmorillonite

To investigate the performance and mechanism of flame retardance and smoke suppression of organic montmorillonite (OMMT) modified asphalt, limiting oxygen index (LOI) and dynamic flame-retardant performance tests were performed. The pyrolysis characteristics of modified asphalt were analyzed using thermalgravimetric-Fourier transform infrared (TG-FTIR) analysis. The results show that the OMMT particle size has little effect on modified-asphalt performance. OMMT increases the ignition time and ignition temperature, and it reduces heat release during combustion. OMMT also significantly inhibits smoke emission during pyrolysis and combustion of modified asphalt. Finally, a flame-retardant and smoke-suppression mechanism model of OMMT-modified asphalt was established.

• Record URL:
  https://doi.org/10.1016/j.conbuildmat.2021.124148
• Record URL:
  http://www.sciencedirect.com/science/article/pii/S0950061821019085
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/09500618
• Supplemental Notes:
  • © 2021 Elsevier Ltd. All rights reserved. Abstract reprinted with permission of Elsevier.
• Authors:
  • Yang, Xiaolong
  • Shen, Aiqin
  • Jiang, Yixin
  • Meng, Yongjun
  • Wu, Hansong
• Publication Date: 2021-10-4

Language

• English

Media Info

• Media Type: Web
• Features: Figures; References; Tables;
• Serial:
  • Construction and Building Materials
  • Volume: 302
  • Issue Number: 0
  • Publisher: Elsevier
  • ISSN: 0950-0618
  • Serial URL: http://www.sciencedirect.com/science/journal/09500618?sdc=1

Subject/Index Terms

• TRT Terms: Asphalt additives; Bituminous binders; Fire retardants; Montmorillonite; Pyrolysis; Smoke
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 01779979
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 27 2021 2:54PM