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Title:

Rheological Characterization of Nano-particle based Bio-modified Binder

Accession Number:

01476014

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

This paper investigates the effects of nanoparticles (nano -clay and nano -silica) on the rheological characteristics of bio-modified asphalt. It further compares its performance characteristics with those of base asphalt, nano-clay modified asphalt (without bio-binder) and bio-modified asphalt (without nano-particles). As such, the following research hypotheses were investigated: 1) Nano particles will increase bio-modified binder (BMB) complex modulus which in turn increases BMB’s high temperature performance; 2) Nano particles will enhance BMB’s aging resistance, 3) Nano particles will act as a surfactant and stabilizer which will increase the BMB’s viscosity while maintaining mixtures’ workability. The effect of the nanoparticles on workability and high temperature performance of the asphalt binder with and without bio-binder was evaluated by measuring the rotational viscosity and complex shear modulus. The performance of each binder was evaluated for rutting resistance, aging resistance and creep stiffness performance behavior. The results indicated that the addition of nano-clay to bio-modified asphalt helped significantly improve high temperature performance. Correspondingly, the hardening of bio-modified asphalt saw a significant improvement as the percentage of nano-clay was increased. The data indicated that nano-silica improved the viscosity of the bio-modified asphalt binder but had little effect on the aging and rutting resistance of the mixtures. It was observed that nano-silica slightly increased bio-modified asphalt binder complex modulus with a decrease to binder low temperature performance. Overall, the characterization results suggested an improvement to bio-modified asphalt binder high temperature performance with the addition of nanoparticles.

Supplemental Notes:

This paper was sponsored by TRB committee AFK20 Characteristics of Asphalt Materials.

Monograph Accession #:

01470560

Report/Paper Numbers:

13-4895

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Onochie, Albert
Fini, Elham
Yang, Xu
Mills-Beale, Julian
You, Zhanping

Pagination:

16p

Publication Date:

2013

Conference:

Transportation Research Board 92nd Annual Meeting

Location: Washington DC, United States
Date: 2013-1-13 to 2013-1-17
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References; Tables

Uncontrolled Terms:

Bio-binders

Subject Areas:

Highways; Materials; Pavements; I33: Other Materials used in Pavement Layers

Source Data:

Transportation Research Board Annual Meeting 2013 Paper #13-4895

Files:

TRIS, TRB, ATRI

Created Date:

Feb 5 2013 12:56PM