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蔡燕霞^{1 ,2 , 3}  ,  崔雨豪¹  ,  趙云剛⁴  ,  楊    杰^{2 , 3}  ,   陳少鵬⁴

( 1 .  河北工程大學 土木工程學院 ，邯鄲 056038 ;  2.  中路高科（北京） 公路技術有限公司 ，北京 100088 ;

3 .  公路建設與養護新材料技術應用交通運輸行業研發中心 ，北京 100088 ;

4.  邯鄲市交通運輸局高速公路建設管理中心 ，邯鄲 056000)

摘   要 ：為充分利用瀝青路面回收料，通過高溫車轍、小梁彎曲、浸水馬歇爾和凍融劈裂等試驗方法，分析 RAP 摻量對廠拌熱再生瀝青混合料路用性能的影響；通過灰靶決策模型確定 RAP 摻量的最優配比方案。結果表明： 隨著 RAP 摻量增大，廠拌熱再生瀝青混合料的高溫穩定性逐漸提高，水穩定性和低溫抗裂性逐漸下降； 并且30%~ 40% 的 RAP 摻量范圍內高溫穩定性、低溫抗裂性和水穩定性的評價指標變化速度加快 ；再生劑改善了廠拌熱再生瀝青混合料低溫抗裂和水穩定性能；基于灰靶決策模型，最終確定添加再生劑且 RAP 摻量為40% 的瀝青混合料為最佳方案。

關鍵詞：路面工程 ；廠拌熱再生 ；灰靶決策模型 ；RAP 摻量 ；再生劑 ；路用性能

中圖分類號：U416. 2           

文獻標志碼：A            

文章編號： 1005- 8249   (2025)  02- 0131- 08 

DOI:10. 19860/j.cnki.issn1005 - 8249.2025 .02.022

 

CAI Yanxia^{1 , 2 , 3}  ,  CUI Yuhao¹  ,  ZHAO Yungang⁴ ,  YANG Jie^2 , 3 ,  CHEN Shaopeng⁴

(1 . School of Civil Engineering ,  Hebei University of Engineering ,  Handan 056038 ,  China;  2. Zhonglu  High

Tech  (Beijing)  Highway Technology Co . ,  Ltd . ,  Beijing 100088 ,  China;  3 . Research  and

Development Center for the Application of New Materials Technology in Highway Construction and

Maintenance Transportation Industry ,  Beijing 100088 ,  China;  4. Highway  Construction Management

Center of Handan Transportation Bureau ,  Handan 056000 ,  China )

Abstract： To achieve efficient utilization of recycled asphalt pavement materials, we conducted in-depth exploration into the impact of RAP content on the road performance of factory-mixed hot recycled asphalt mixtures. This was achieved through experimental methods such as high-temperature rutting tests, small beam bending tests, immersion Marshall tests, and freeze-thaw splitting tests. By utilizing a grey target decision model and considering comprehensive performance indicators of the factory-mixed hot recycled asphalt mixtures, we determined the optimal RAP content ratio. Our research revealed that as the RAP content increases, the high-temperature stability of the mixtures gradually improves, whereas their water stability and low-temperature crack resistance gradually decrease. Notably, within the RAP content range of 30% to 40%, the rates of change in evaluation indicators for high-temperature stability, low-temperature crack resistance, and water stability accelerate. Additionally, the use of a rejuvenator optimized the low-temperature crack resistance and water stability of the mixtures. Based on the grey target decision model, we ultimately determined that the asphalt mixture with a 40% RAP content and the addition of a rejuvenator represents the optimal solution.

Key words:road surface engineering；hot mix regeneration; grey target decision model; RAP content; regenerant; road performance

作者簡介：蔡燕霞  (1984—) ,  博士 ，高級工程師 ，研究方向：路面結構與材料。

通信作者：崔雨豪  (1998—) ,  碩士研究生 ，研究方向：路面結構與材料。

收稿日期：2024- 10- 30