Journal ArticleDOI
Rheological Properties and Chemical Bonding of Asphalt Modified with Nanosilica
Hui Yao,Zhanping You,Liang Li,Chee Huei Lee,David Wingard,Yoke Khin Yap,Xianming Shi,Shu Wei Goh +7 more
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In this article, the authors evaluated the rheological properties and chemical bonding of nano-modified asphalt binders blended with nanosilica and found that the nanosilsilica was added to the control asphalt at contents of 4% and 6% based on the weight of asphalt binder.Abstract:
The objective of this study is to evaluate the rheological properties and chemical bonding of nano-modified asphalt binders blended with nanosilica In this study, the nanosilica was added to the control asphalt at contents of 4% and 6% based on the weight of asphalt binders Superpave binder and mixture tests were utilized in this study to estimate the characteristics of the nano-modifed asphalt binder and mixture The rotational viscosity (RV), dynamic shear rheometer (DSR), bending beam rhometer (BBR), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), asphalt pavement analyzer (APA), dynamic modulus (DM) and flow number (FN) tests were used to analyze rheological properties and chemical bonding changes of the nano-modified asphalt binder and the performance of the nano-modified asphalt mixture In addition, the performance of nano-modified asphalt after rolling thin-film oven (RTFO) short-term and pressure-aging vessel (PAV) long-term aging was assessed as wellread more
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Developments of nano materials and technologies on asphalt materials – A review
TL;DR: In this paper, a review of the main nano materials and related techniques used for nano-modified asphalts and major performance characteristics at various states is presented, where some conventional test results including viscosity, dynamic modulus, stiffness, rut depth, indirect tensile strength and so on were employed to characterize the rheological and engineering performances of nano- modified asphalms and some innovative technologies such as atomic force microscopy and scanning electron microscopy, X-ray diffraction, and Fourier transform infrared spectroscopy were effectively utilized to explore their micro structures and
Journal ArticleDOI
The effects of moisture susceptibility and ageing conditions on nano-silica/polymer-modified asphalt mixtures
TL;DR: In this paper, the performance characteristics of polymer-modified asphalt mixture (PMA) with the addition of nano-silica particles were investigated. And the results showed that 4% nano silica with PMA appears to have the greatest potential for beneficial modification of the asphalt binder.
Journal ArticleDOI
Understanding the bitumen ageing phenomenon: A review
TL;DR: In this paper, an overview of a number of studies related to the ageing process in bitumen, to determine the main component affecting this phenomenon is provided, and a review is presented of the in-laboratory tests used to simulate the different ageing processes (short-term ageing, long-term aging, UV ageing) that occur in the field, along with a description of the techniques currently employed to analyse what happens to the binder after ageing.
Journal ArticleDOI
Fourier Transform Infrared Spectroscopy characterization of aging-related properties of original and nano-modified asphalt binders
Hui Yao,Qingli Dai,Zhanping You +2 more
TL;DR: In this paper, the effect of aging on asphalt binders under the conditions of dry and sufficient oxygen, and identify the functional groups related to the fatigue and rutting of asphalt mixtures.
Journal ArticleDOI
Experimental investigation of effect of Nano TiO2/SiO2 modified bitumen on the rutting and fatigue performance of asphalt mixtures containing steel slag aggregates
TL;DR: In this article, the results of laboratory tests that was performed on modified steel slag asphalt mixture (SSAM) containing TiO2 and Nano SiO2 particles, the materials that are added to improve the rutting resistance of Nano modified asphalt mixtures were analyzed.
References
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Modeling of the mechanical properties of nanoparticle/polymer composites
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Nanoclay-modified asphalt materials: Preparation and characterization
Zhanping You,Julian Mills-Beale,Justin M. Foley,Samit Roy,Gregory M. Odegard,Qingli Dai,Shu Wei Goh +6 more
TL;DR: In this paper, a review of existing literature in the area of nano-modification of asphalt and proceed to apply nano-materials to asphalt to improve the performance is presented.
Journal ArticleDOI
Asphaltene deposition: a survey of field experiences and research approaches
TL;DR: A review of the experiences of the oil industry and the progress and direction of the research community in their efforts to provide solutions to the asphaltene deposition problem can be found in this paper.