Influence of Carbon Nanotubes on Performance Properties and Storage Stability of SBS Modified Asphalt Binders
- 1 August 2017
- journal article
- research article
- Published by American Society of Civil Engineers (ASCE) in Journal of Materials in Civil Engineering
Abstract
This study investigated the effects of carbon nanotubes (CNT) as a binder modifier on the performance properties of asphalt binders and storage stability of polymer modified binders. Performance characteristics of CNT modified binders were investigated through physical and rheological tests such as penetration index (PI), viscosity temperature susceptibility (VTS), temperature susceptibility (TS), and frequency sweep tests. Furthermore, the influence of CNT on storage stability of styrene-butadiene-styrene (SBS) modified binders was investigated by measuring rheological properties like separation index (SI), separation ratio ( ), degradation ratio ( ), and softening point difference (SPD) of the triple nanocomposite. The results indicated that the addition of CNT decreased PI, TS, and VTS and improved physical and rheological properties of the asphalt binder. Also, the results showed a significant relationship between the CNT content and PI, TS, and VTS in CNT modified binders. Regarding storage stability, adding CNT to the SBS modified binder resulted in improved stability, indicating a strong interaction between the asphalt binder and SBS polymer.
Keywords
This publication has 29 references indexed in Scilit:
- Investigation of fatigue and fracture properties of asphalt mixtures modified with carbon nanotubesFatigue & Fracture of Engineering Materials & Structures, 2016
- Nanomaterials Applied in Asphalt Modification: A ReviewJournal of Materials Science & Technology, 2013
- The impact of carbon nano-fiber modification on asphalt binder rheologyConstruction and Building Materials, 2012
- Effects of processing conditions on rheological, thermal, and electrical properties of multiwall carbon nanotube/epoxy resin compositesJournal of Polymer Science Part B: Polymer Physics, 2011
- Determination of deacetylation degree of chitosan: a comparison between conductometric titration and CHN elemental analysisCarbohydrate Research, 2009
- Multiwall carbon nanotube elastomeric composites: A reviewPolymer, 2007
- Controlling Performance of Crumb Rubber-Modified Binders Through Addition of Polymer ModifiersTransportation Research Record: Journal of the Transportation Research Board, 2006
- Asphalt modified by SBS triblock copolymer: Structures and propertiesPolymer Engineering & Science, 1996
- Fullerene productionJournal of Physics and Chemistry of Solids, 1993
- Helical microtubules of graphitic carbonNature, 1991