基于響應(yīng)曲面法的巖抗SBS復(fù)合再生瀝青性能優(yōu)化

打開文本圖片集

中圖分類號：U414

文獻標志碼：A 文章編號：1673-3851（2025）07-0523-10

引用格式：，等，基于響應(yīng)曲面法的巖抗SBS復(fù)合再生瀝青性能優(yōu)化[J]．浙江理工大學(xué)學(xué)報（自然科學(xué)），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

瀝青路面具有施工簡便、行車舒適等特點，中國90% 以上的高速公路均采用瀝青鋪筑。（剩余11195字）