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9 results on '"Hengbin Liu"'

7. Preparation of Super-Hydrophobic Anti-Icing Coating for Asphalt Pavement and Evaluation of Its Anti-Icing Properties

Author

Hengbin Liu, Zhengqi Zhang, Shihao Zhang, and Kaiwen Zhang

Subjects
Materials science, Building and Construction, engineering.material, Driving safety, Adhesion strength, Skid (automobile), Asphalt pavement, Coating, Mechanics of Materials, engineering, General Materials Science, Composite material, Civil and Structural Engineering, Icing
Abstract

Ice formed on asphalt pavement in winter reduces the skid resistance of the pavement surface, which would likely cause traffic accidents. To guarantee driving safety, a super-hydrophobic an...

Published
2021

8. Analysis of OMMT strengthened UV aging-resistance of Sasobit/SBS modified asphalt: Its preparation, characterization and mechanism

Author

Gui Zengjian, Xu Yufeng, Zhang Zhengqi, Li Naiqiang, Hengbin Liu, and Jinqian Xie

Subjects
chemistry.chemical_classification, Materials science, Renewable Energy, Sustainability and the Environment, 020209 energy, Strategy and Management, 05 social sciences, Composite number, 02 engineering and technology, Building and Construction, Polymer, Microstructure, Industrial and Manufacturing Engineering, Rheology, chemistry, Aging resistance, Asphalt, 050501 criminology, 0202 electrical engineering, electronic engineering, information engineering, Composite material, 0505 law, General Environmental Science
Abstract

To promote the application of warm mix asphalt (WMA) technology in strong UV areas, warm mix SBS modified asphalt binders with better UV aging resistance were developed in this study. The conventional physical properties, viscosity-temperature characteristics, rheological properties and storage stability were carried out to analyze the performance of the prepared modified asphalt containing Sasobit and OMMT. Then, TOPSIS method was selected for multi-index optimization to optimize the dosage of OMMT and Sasobit. Subsequently, the warm mix effect, high temperature property and aging resistance of the developed modified asphalt were further evaluated. Finally, the modification mechanism was characterized with FTIR, XRD and FM. Test results show that, Sasobit can significantly improve the construction workability of asphalt, and OMMT can enhance the storage stability and UV-aging resistance. In addition, the two modifiers can both improve the high temperature property of SBS modified asphalt. Based on the multi-index optimization results, it is recommended that the optimal dosage of Sasobit and OMMT is 3% and 2%, respectively. And microstructure characterization test results reveal that the asphalt chains and polymer molecules have been successfully intercalated into the layers of OMMT molecules, and further the exfoliated structure has been formed in the composite asphalt blend, thus improving its road performance. From the above results, it can be concluded that both additives play their own advantages at their optimum dosages.

Published
2021

9. Effects of polyphosphoric acid ( <scp>PPA</scp> ), <scp>styrene‐butadiene‐styrene</scp> ( <scp>SBS</scp> ), or rock asphalt on the performance of desulfurized rubber modified asphalt

Author

Zhuolin Li, Zhengqi Zhang, Hengbin Liu, and Li Naiqiang

Subjects
Materials science, Styrene-butadiene, Polymers and Plastics, General Chemistry, Surfaces, Coatings and Films, Styrene, chemistry.chemical_compound, Natural rubber, chemistry, Rheology, Asphalt, visual_art, Materials Chemistry, visual_art.visual_art_medium, Adhesive, Composite material
Published
2021

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