CAJ | 학술논문

依托湖北某就地热再生工程，对旧沥青路面抽提的沥青研究其再生的相关理论和设计方法。检测现场抽提旧沥青的相关指标，评价其老化程度。在阐述沥青再生机理的基础上，提出就地热再生中旧沥青再生目标标号的确定方法。建议由调和公式预估再生剂的掺加比例，随后的试验证明此预估值约有15％的误差。通过试配法进行旧沥青的再生试验，经综合考虑初定 A型和 B 型再生剂的适宜掺量为8．7％和7．2％。检测适宜掺量下再生沥青的抗老化性能，结果表明 A型和 B型再生剂下的再生沥青耐老化性能良好。
의탁호북모취지열재생공정，대구력청로면추제적력청연구기재생적상관이론화설계방법。검측현장추제구력청적상관지표，평개기노화정도。재천술력청재생궤리적기출상，제출취지열재생중구력청재생목표표호적학정방법。건의유조화공식예고재생제적참가비례，수후적시험증명차예고치약유15％적오차。통과시배법진행구력청적재생시험，경종합고필초정 A형화 B 형재생제적괄의참량위8．7％화7．2％。검측괄의참량하재생력청적항노화성능，결과표명 A형화 B형재생제하적재생력청내노화성능량호。
Relying on hot in-place recycling project in Hubei,we studied the theories and design methods of asphalt reclaiming aiming at the extracted used asphalt.We tested some indexes of extracted used asphalt to assess its aging degree.Based on the asphalt reclaiming mechanism,we put forward the determination method of used asphalt's target label number under hot in-place recycle.We suggested that the regenerant content should be forecasted first by the harmonic formula,and subsequent experiments proved that its forecast error is about 15%.Through the matching test of used asphalt reclaiming,we as-certained preliminarily the suitable regenerant content of type A and B is 8.7% and 7.2%.We tested the ageing resistance of reclaimed asphalt under the suitable content,and the results show that the re-claimed asphalts under type A and B have good performance.