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| 1 | Nanomaterials Applied in Asphalt Modification:A Review显示文摘Nanotechnology has been gradually penetrated into the field of asphalt modification.Seemingly magic effects of nanomaterials have now been brought to improve the performance of asphalt.To demonstrate many of the prospective applications,researchers have conducted a series of positive and effective efforts dealing with the preparation of modified asphalt to demonstrate the mechanism of modification and the resultant improvement in performance.In this review,various nanomaterials used in asphalt modification are initially presented,followed by the methods employed to modify the asphalt with these materials and finally the effects of nanomaterials on the performance of base asphalt are presented and the modification mechanisms are discussed.Based on the current research results,the influence of preparation process parameters on the compatibility of every phase in the modified asphalt and the stability of the modified asphalt system are described.Finally,the development trend of the topic field is projected. | Changqing Fang Ruien Yu Shaolong Liu Yan Li | 2013 | Journal of Materials Science & Technology2013，29，7： | 23 |
| 2 | Effect of Preparation Temperature on the Aging Properties of Waste Polyethylene Modified Asphalt显示文摘In this study, waste polyethylene(WPE) was used as a modifier for base asphalt. In our previous studies,we have examined a variety of polymer modifiers for asphalt. By contrast, little research has focused on the preparation process, such as preparation time, preparation temperature and shear rate. The effect of preparation temperature on aging properties of WPE-modified asphalt was investigated in this work. The experimental materials were characterized by infrared spectroscopy(IR), thermo-gravimetric analysis(TG), and differential scanning calorimetry(DSC). The physical properties were determined by conducting asphalt penetration, softening point and ductility tests. The results show that increasing the preparation temperature results in an increased softening point of WPE-modified asphalt while decreased penetration and ductility. In addition, this variation was accentuated by aging the experimental materials. The modification process of WPE is a physical process. During the asphalt modification process, the WPE aged as the preparation temperature increased. The results revealed that 190 C is the most suitable preparation temperature, and the post aged asphalt demonstrated improved high temperature stability. | Changqing Fang Mengya Zhang Ruien Yu Xiaolong Liu | 2015 | Journal of Materials Science & Technology2015，31，3： | 11 |
| 3 | Preparation and Properties of Asphalt Modified with a Composite Composed of Waste Package Poly(vinyl chloride) and Organic Montmorillonite显示文摘A composite composed of waste package poly(vinyl chloride)(WPVC) and organic montmorillonite(OMMT) was prepared by coextrusion, which is used for modifying asphalt. The micromorphology of the WPVC/OMMT composite and its effect on the macroscopic properties of asphalt were studied using a fluorescent microscope and an X-ray diffractometer(XRD). The introduction of OMMT allows the WPVC to be good dispersed in the asphalt matrix, as demonstrated by differential scanning calorimetry(DSC) and Fourier transform infrared spectroscopy(FTIR) analysis. The results indicate that asphalt modified by WPVC/OMMT composites with low OMMT content results in better high-temperature storage stability and physical properties of modified asphalt. | Changqing Fang Xiaolong Liu Ruien Yu Pei Liu Wanqing Lei | 2014 | Journal of Materials Science & Technology2014，30，12： | 5 |
| 4 | Preparation,Characterization and Hot Storage Stability of Asphalt Modified by Waste Polyethylene Packaging显示文摘Waste polyethylene packaging(WPE) was used to modify asphalt,and hot storage stability of the modified asphalt was studied in this paper.The morphological change and component loss of WPE modified asphalt were characterized by fluorescence microscopy,Fourier transform infrared spectroscopy(FT-IR),differential scanning calorimetry(DSC),thermogravimetry(TG) and isolation testing.In addition,the mechanism of the hot storage stability of WPE modified asphalt was discussed.The results showed that the modification of asphalt with WPE was a physical process.It was found that the filament or partly network-like structure formed in the modified asphalt system was beneficial to improving the hot storage stability.Moreover,the addition of WPE resulted in a decrease in both the light components volatilization and the macromolecules decomposition of asphalt.It was demonstrated that when the content of WPE in matrix asphalt was less than 10 wt%,the service performances of modified asphalt could be better. | Changqing Fang Ying Zhang Qian Yu Xing Zhou Dagang Guo Ruien Yu Min Zhang | 2013 | Journal of Materials Science & Technology2013，29，5： | 3 |
| 5 | Viscoelasticity of Asphalt Modified With Packaging Waste Expended Polystyrene显示文摘In view of environmental and economic aspect,asphalt was modified with recycled packaging waste expended polystyrene(WEPS)instead of common polymer.The differential scanning calorimetry(DSC),rotational viscometer and dynamic shear rheology(DSR)were used to analyze and evaluate the viscoelasticity of modified asphalt.Results indicate that the sensitivity of modified asphalt to temperature is decreased while the rut resistance of asphalt is increased.In addition,the viscoelasticity of asphalt is improved after the modification with WEPS.Besides,the modified asphalt has high viscosity at low temperature and low viscosity at high temperature,which is favorable for construction. | Changqing Fang Linna Jiao Jingbo Hu Qian Yu Dagang Guo Xing Zhou Ruien Yu | 2014 | Journal of Materials Science & Technology2014，30，9： | 3 |
| 6 | Combined modificcation of asphalt with polyethylene packaging waste and organophilic montmorillonite显示文摘 | Changqing Fang * Ruien Yu Ying Zhang Jingbo Hu | 2012 | Polymer Testing2012，31，： | 1 |
| 7 | Characterization of polypropylene–polyethylene blends made of waste materials with compatibilizer and nano-filler显示文摘 | Changing Fang Long Nie Shaolong Liu Ruien Yu Ningli An Shasha Li | 2013 | Composites Part B2013，，： | 1 |
| 8 | Aging propemes and mechanism of the modified asphalt by packaging waste poly- ethylene and waste rubber powder 显示文摘 | Fang Changqing Wu Caixia Yu Ruien | 2013 | Polymers for Advanced Technologies2013，24，1： | 1 |
| 9 | Combined modification' of asphalt with polyethylene packaging waste and organophilic montmorillonite 显示文摘 | Fang Changqing Yu Ruien Zhang Ying | 2012 | Polymer Testing2012，，2： | 1 |
| 10 | Study on Financing of SMEs in Enshi Nationality Area Based on FFMO Model 1显示文摘Financing has been always diffi cult for small and micro enterprises(SMEs() in Enshi nationality area mainly because of its higher fi nancing cost, immaturity and high monopoly of the fi nancial market. This paper, based on classical theories and model as well as fi nancial market status in Enshi, combs and analyzes major factors infl uencing fi nancing of small and micro enterprises in Enshi, sets up a FFMO model and proves that reform measures of fi nancial organization competition promotion and reduction of small and micro enterprises’ cost adopted by large fi nancial organizations in order to pursue maximized profi t under the market environment with rising barriers can balance the fi nancial market and make it favorable for development of small and micro enterprises’ fi nancing. | RAN Ruien | 2016 | International Journal of Technology Management2016，，6： | 0 |
| 11 | Effect of Components on the Performance of Asphalt Modified by Waste Packaging Polyethylene显示文摘Waste packaging polyethylene(WPE) was used to modify raw asphalt by melt blending the components at 190 ℃ for 1 h in a simple mixer and subsequently machining them at 120 ℃ for 1 h in a highspeed shearing machine.The effect of modification on the degree of the penetration,the softening point and the ductility of the asphalt was studied using fluorescent microscopy,infrared spectrometry,component changes and various other techniques.The experimental results showed that no chemical reactions took place in the components themselves(saturate,aromatic,asphaltene and resin) during the modifications.The softening point and penetration of the asphalt were found to be closely related to the resulting contents of the asphaltene,saturate and resin components.In addition,aromatics were identified as having the greatest impact on the ductility of the asphalt. | 张茂荣 FANG Changqing ZHOU Shisheng CHENG Youliang YU Ruien LIU Shaolong LIU Xiaolong SU Jian | 2016 | Journal of Wuhan University of Technology(Materials Science)2016，31，4： | 0 |
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