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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TLDR
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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Journal ArticleDOI
Effects of diatomite on the properties of asphalt binder
TL;DR: In this article, Fourier Transform Infrared (FTIR) spectroscopy was used to test the effects of diatomite on chemical properties of asphalt binder and the storage stability of modified asphalt binders.
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Natural rubber nanocomposite reinforced with nano silica
TL;DR: The results show that theSiO 2 nanoparticles are homogenously distributed throughout the NR matrix in a form of spherical nano-cluster with an average size of 80 nm when the SiO 2 content is 4 wt%.
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Laboratory investigation of indirect tensile strength using roofing polyester waste fibers in hot mix asphalt
TL;DR: In this article, the use of roofing waste polyester fibers has been investigated to improve indirect tensile strength (ITS) and moisture susceptibility properties of asphalt concrete mixtures containing various lengths and percentages of the fiber in various aggregate sources.
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Preliminary Dynamic Modulus Criteria of HMA for Field Rutting of Asphalt Pavements: Michigan's Experience
TL;DR: In this article, a comparative study of laboratory results of both dynamic modulus testing and field rutting performances of hot-mix asphalt (HMA) in the state of Michigan is presented.
Journal ArticleDOI
A TG-FTIR investigation into smoke suppression mechanism of magnesium hydroxide in asphalt combustion process
Tao Xu,Tao Xu,Xiaoming Huang +2 more
TL;DR: In this article, the influence of magnesium hydroxide (MH) on the volatile release in asphalt combustion process was analyzed using the combined thermogravimetry-Fourier transform infrared spectroscopy (TG-FTIR) technique.