交通节能与环保2025，Vol.21Issue(2)：17-22,6.DOI:10.3969/j.issn.1673-6478.2025.02.004
新疆高低温过渡区厂拌热再生沥青混合料平衡设计法应用研究
Application Research on Balanced Design Method of Plant-Mix Hot Recycled Asphalt Mixture in High and Low Temperature Transition Zone of Xinjiang
摘要
Abstract
Reclaimed hot-mix asphalt(RHMA)is one of the common methods for utilizing reclaimed asphalt pavement(RAP).However,the addition of RAP can improve the high-temperature rutting resistance of asphalt pavement but reduce its low-temperature crack resistance.The balanced design method,a novel approach in recent years,adjusts the asphalt content during the design phase to achieve a balance between the high-and low-temperature performance of asphalt pavement.This study,based on the reconstruction and expansion project of G30(Xinxingxia-Hami section in Xinjiang),adopts the concept of the Superpave Class Ⅱ balanced design method to conduct balanced design of recycled asphalt pavement in accordance with Chinese road specifications.The study used three different sources of RAP.First,the Marshall design method was used to determine the optimal gradation curve,asphalt-to-aggregate ratio(4.0%),and volumetric indicators.Subsequently,high-temperature rutting tests and small-beam flexure tests were conducted on recycled asphalt mixtures with different asphalt-to-aggregate ratios(4.0%,4.1%,4.2%,and 4.3%).The results show that as the asphalt content increases,the high-temperature rutting resistance of the recycled asphalt mixture gradually decreases,while the low-temperature crack resistance gradually increases.Considering the practical application in engineering,an asphalt-to-aggregate ratio of 4.2%was determined as the optimal asphalt content,sacrificing some high-temperature rutting resistance to improve low-temperature crack resistance.关键词
平衡设计法/再生沥青混合料/低温抗裂Key words
balanced design method/recycled asphalt mixture/low-temperature crack resistance分类
交通运输引用本文复制引用
依力亚尔·阿力木,黎晓东,万伟,宋亮,高冲,李梓豪..新疆高低温过渡区厂拌热再生沥青混合料平衡设计法应用研究[J].交通节能与环保,2025,21(2):17-22,6.基金项目
2024年度新疆维吾尔自治区交通运输行业科技项目(2024-ZD-002) （2024-ZD-002）
天山英才科技创新领军人才项目(2022TSYCLJ0045) （2022TSYCLJ0045）
