基于响应曲面法的岩抗SBS复合再生沥青性能优化

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中图分类号：U414

文献标志码：A 文章编号：1673-3851（2025）07-0523-10

引用格式：，等，基于响应曲面法的岩抗SBS复合再生沥青性能优化[J]．浙江理工大学学报（自然科学），2025，53（4）：523-532.

Abstract： To fully utilize aged asphalt， a preparation method for rock-resistant SBS composite rejuvenated asphalt was proposed. First，rock asphalt and anti-stripping agent were blended to modify SBS asphalt， producing a rock asphalt/anti-stripping agent composite modified asphalt. The optimal dosages of rock asphalt and the anti-stripping agent were determined using the response surface methodology. Then， this composite modified asphalt was blended with aged asphalt to prepare the rock-resistant SBS composite rejuvenated asphalt，and the performance improvement was verified using a rejuvenated asphalt blending theory model. Results show that rock asphalt and anti-stripping agent enhance asphalt performance，with the best composite modified asphalt performance at 8.5% rock asphalt and 0.4% anti-stripping agent. The rejuvenated asphalt blending theory model is applicable to this preparation method.When the composite modified asphalt content reaches 30% ，the performance improvement of aged asphalt is most significant： the maximum residual penetration ratio （76.5% ），the minimum softening point increment （1.9∘C） ），and the maximum elongation ratio （ 62.4%） . The research offers reference for aged asphalt recycling and

rejuvenated asphalt preparation.

Key Words： asphalt modification； reclaimed asphalt； response surface methodology； SBS modifiedasphalt；reclaimed asphalt blending theory model

0 引言

沥青路面具有施工简便、行车舒适等特点，中国90% 以上的高速公路均采用沥青铺筑。（剩余11195字）