Journal ArticleDOI
Laboratory Study on the Effect of Nano TiO2 on Rutting Performance of Asphalt Pavements
TLDR
In this article, the effect of nano-TiO2 in improving bitumen property and rutting resistance in Asphalt pavement under dynamic loading was investigated. And the results illustrate that using nano-O2in asphaltbinder samples cause to an improvement in rutbingdepth in comparison with the ordinarymixtures.Abstract:
Modification of the asphalt binder is one approach taken to improve Asphalt pavement performance. Rutting is one of the most important factors that could reduce the life of asphalt pavements.Nowadays, the application of nanotechnologyto achieve materials that are more resistant is expanding in asphalt pavement thatNano-TiO2 is among the most exciting and promising classes of materials discovered recently. The purpose of this study is laboratory research on the effect of Nano-TiO2 in improving Bitumen property and rutting resistance in Asphalt pavement under dynamic loading. For this purpose, the wheel-tracking test was carried outon ordinary and Nano-TiO2 modified hot mix asphalt samples.The results illustrate that using Nano-TiO2in asphaltbinder samples cause to an improvement in ruttingdepth in comparison with theordinarymixtures.read 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
High and low temperature properties of nano-particles/polymer modified asphalt
TL;DR: In this article, three optimal nano-particles/polymer modification systems for SK-70 base asphalt including 3%nano-ZnO/0.5%, 3%Nano-TiO2/3.7%SBS, 5% nano-CaCO3/4%SBR were proposed, and the effects of these three optimal modification formulations on high and low temperature properties of base asphalt, dynamic shear rheometer (DSR), thin film oven test (TFOT), and beam bending rheometry (BBR) tests were
Journal ArticleDOI
Evaluation the effect of nano-TiO2 on the rutting and fatigue behavior of asphalt mixtures
TL;DR: In this paper, the effect of nano-Titanium dioxide (TiO2) has been investigated to improve HMA properties and the results showed that adding nano-TiOO2 led to great improvements on permanent deformation and fatigue life of HMA.
Journal ArticleDOI
Estimating the moisture damage of asphalt mixture modified with nano zinc oxide
TL;DR: In this article, the effect of nanoparticles was evaluated as an antistrip agent on the moisture damage of hot mix asphalt (HMA) is evaluated in two types of aggregates with different sensitivities against moisture damage.
Journal ArticleDOI
Molecular dynamics study on influence of Nano-ZnO/SBS on physical properties and molecular structure of asphalt binder
TL;DR: In this paper, the influence of nano-ZnO and SBS modifiers on the physical properties and structure of asphalt using molecular dynamics (MD) method was investigated. And the results showed that nano-znO particles decrease solubility parameter of asphalt and improve the miscibility between SBS and asphalt.
References
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Journal ArticleDOI
Rheological properties of styrene butadiene styrene polymer modified road bitumens
TL;DR: In this paper, the authors describe the polymer modification of two penetration grade bitumens with SBS and show that the degree of SBS modification is a function of bitumen source, bitumen polymer compatibility and polymer concentration, with the higher polymer concentrations in a high aromatic content bitumen producing a highly elastic network which increases the viscosity, complex modulus and elastic response of the PMB.
Journal ArticleDOI
Processing, rheology, and storage stability of recycled EVA/LDPE modified bitumen
Moisés García-Morales,Pedro Partal,Francisco J. Navarro,Francisco J. Martínez-Boza,Críspulo Gallegos +4 more
TL;DR: In this paper, a comparison among the kinetics of the mixing process and the rheological properties and microstructural characteristics of polymer-modified bitumens (PMBs) manufactured in two different mixers is presented.
Proceedings ArticleDOI
Nanotechnology and Information Technology in Civil Engineering
TL;DR: In this paper, the authors present research opportunities and challenges in mechanics and materials, including nanomechanics, carbon nano-tubes, bio-inspired materials, coatings, fire-resistant materials as well as improved engineering and design of materials in this exciting IT age.