ISSN: 1945-7553
CODEN: JTEVAB
Published Online: 1 August 2012
Page Count: 5

Study on the Intrinsic Viscosity of Bitumen Containing Organo Montmorillonite Nanoclay

Liu, Gang
Faculty of Civil Engineering and Geo Sciences, Delft Univ. of Technology, Delft, GA

van de Ven, Martin
Faculty of Civil Engineering and Geo Sciences, Delft Univ. of Technology, Delft, GA

Wu, Shaopeng
State Key Laboratory of Silicate Materials for Architectures, Wuhan Univ. of Technology, Wuhan,

Molenaar, Andre
Faculty of Civil Engineering and Geo Sciences, Delft Univ. of Technology, Delft, GA

(Received 27 March 2012; accepted 4 May 2012)

Abstract

The intrinsic viscosity of the filler is a key parameter to determine the increase in viscosity of bitumen as a function of filler volume fraction. In this study, the intrinsic viscosity of bitumen containing different organo montmorillonite (Mt) nanoclay was studied by using Simha composite model. The comparison of intrinsic viscosity was made to bitumens containing different fillers. Compared with the data on the intrinsic viscosity of other mineral fillers in bitumen, organo Mt is more effective to enhance this rheological property, due to its better compatibility with bitumen and its intercalated structure formation. These data can give a clear insight into the reinforcement mechanisms of bitumen when different types of mineral filler are used to modify the bitumen.

Keywords:
viscosity, bitumen, montmorillonite, aspect ratio

Paper ID: JTE20120090
DOI: 10.1520/JTE20120090
ASTM International is a member of CrossRef.