Ability of Nanomaterials to Effectively Disperse in Asphalt Binders for Use as a Modifier

Several studies have investigated the use of nanomaterials to modify asphalt binders and achieve improved properties. It is possible that in some cases nanomaterials do not disperse and agglomerate within the asphalt binder. In such cases, the benefits from the addition of these nanoscale modifiers are limited and are likely driven by mechanisms that can potentially be achieved using larger filler-sized materials. This study investigates the dispersion characteristics of a selected set of nanomaterials in surrogate solvents that represent a physicochemical environment similar to that of asphalt binders. The study also investigates the influence of these nanomaterials on the performance characteristics of asphalt binders. Results show that among the nanomaterials evaluated, those that tend to disperse relatively better in the surrogate environment, i.e., retain their nanoscale identity better relative to others, also tend to show a relatively better performance in terms of rheological properties. This is especially true at low temperatures.

• Record URL:
  https://doi.org/10.1061/(ASCE)MT.1943-5533.0002315
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/08991561
• Supplemental Notes:
  • © 2018 American Society of Civil Engineers.
• Authors:
  • Sabaraya, Indu Venu
  • Filonzi, Angelo
  • Hajj, Ramez
  • Das, Dipesh
  • Saleh, Navid B
  • Bhasin, Amit
• Publication Date: 2018-8

Language

• English

Media Info

• Media Type: Web
• Pagination: 04018166
• Serial:
  • Journal of Materials in Civil Engineering
  • Volume: 30
  • Issue Number: 8
  • Publisher: American Society of Civil Engineers
  • ISSN: 0899-1561
  • EISSN: 1943-5533
  • Serial URL: http://ascelibrary.org/journal/jmcee7

Subject/Index Terms

• TRT Terms: Asphalt; Binders; Bituminous binders; Dispersions (Chemistry); Nanostructured materials
• Uncontrolled Terms: Modifiers
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 01675210
• Record Type: Publication
• Files: TRIS, ASCE
• Created Date: Jul 19 2018 2:44PM