Evaluating the Rheological Performance of Bituminous Binder Containing Nano Al2O3

AbstractThe study reported herein investigates the effectiveness of nano aluminum trioxide (Al2O3) as a bituminous binder modifier. The study assesses the high- and intermediate-temperature performance of bituminous binders modified with three different percentages (0.5%, 1%, and 2%) of nano Al2O3....

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Bibliographic Details
Published in:Journal of materials in civil engineering 2022-02, Vol.34 (2)
Main Authors: Sadiq Bhat, Faheem, Shafi Mir, Mohammad
Format: Article
Language:English
Subjects:
Aluminum oxide
Building materials
Civil engineering
Emission analysis
Fatigue tests
Field emission microscopy
Fourier transforms
Infrared analysis
Performance evaluation
Rheological properties
Rheology
Stability analysis
Stability tests
Storage stability
Technical Papers
Thermal stability
Thermogravimetric analysis
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Summary:AbstractThe study reported herein investigates the effectiveness of nano aluminum trioxide (Al2O3) as a bituminous binder modifier. The study assesses the high- and intermediate-temperature performance of bituminous binders modified with three different percentages (0.5%, 1%, and 2%) of nano Al2O3. A field emission scanning electron microscope was utilized to study the dispersion of nano Al2O3 in bituminous binder. Fourier transform infrared spectroscopy analysis was used to understand the nature of the interaction between nano Al2O3 particles and bituminous binder. Different rheological approaches, like the Superpave rutting parameter, multiple stress creep and recovery test, and time-temperature sweep, were used to study the high-temperature performance of nano Al2O3–modified bituminous binders. All the methods undertaken in the current study to evaluate rutting susceptibility showed that nano Al2O3 showed modified binders had a very low propensity to accumulate permanent deformation. Fatigue performance evaluated using the Linear Amplitude Sweep test showed that the incorporation of nano Al2O3 enhanced fatigue performance. Nano Al2O3–modified bituminous binders were found to be storage stable as revealed by the storage stability test. The high-temperature thermal stability of the bituminous binders measured using thermogravimetric analysis showed an improvement after nano Al2O3 incorporation.
ISSN:0899-1561
1943-5533
DOI:10.1061/(ASCE)MT.1943-5533.0004088