| Modification of asphalt with crosslinked SBR |
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| DOI： |
| Key Words: SBR；SBS；modified asphalt；chemical crosslink |
| Author Name | Affiliation | | WANG Shi-feng | South China University of Technology | | WANG Di-zhen | South China University of Technology | | ZHONG Han-quan | Jinan University |
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| Abstract: |
| The influence of the addition level and crosslink of SBR on the structure and properties of SBR-modified asphalt was investigated.The results showed that the viscosity，softening point and elastic recovery of modified asphalt at elevated temperature increased as the addition level of SBR increased；the softening point，elastic recovery and visco-toughness of SBR-modified asphalt at elevated temperature increased when SBR was crosslinked；the extendibility of SBR-modified asphalt at low temperature was similar to that of SBS-modified asphalt；although the crosslink of SBR made the viscosity of modified asphalt increase，it made no difficulty for construction；and the chemical crosslink didn't cause the aggregation of SBR in asphalt resulting in poor dispersion of SBR. |
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