| Preparation and properties of emulsion asphalt modified by nano-silica/SBR composite |
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| DOI： |
| Key Words: nano-silica；SBR；emulsion asphalt；modification；DSC |
| Author Name | Affiliation | | CHEN Xian-hong | Hunan University；Key Laboratory of Polymer Material Applied Technology of Hunan Province | | LIU Shan | Hunan University | | SUN Li-fu | Hunan University |
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| Abstract: |
| The thermal properties of evaporation residue of emulsion asphalt modified by nano-silica/SBR composite were investigated by DSC.The results showed that the thermal stability and resistance to elevated temperatures of the emulsion asphalt were improved when modified by nano-silica or SBR；the optimal modified composite was SBR(mass fraction 0.03)/nano-silica(mass fraction 0.000 5).The mainly reasons for the properties improvement of asphalt were the reticular construction of nano-silica/SBR and the swelling of the SBR after oil absorption in the system. |
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