集料指标波动对高模量沥青混合料路用性能的影响研究  

Study on Effect of Aggregate Index Fluctuation on Pavement Performance of High-modulus Asphalt Mixture

作　　者：刘海婷 LIU Haiting(Jiangsu Zhonglu Engineering Technology Research Institute Co.,Ltd.,Nanjing 210000,China)

机构地区：[1]江苏中路工程技术研究院有限公司,江苏南京210000

出　　处：《城市道桥与防洪》2025年第3期280-283,288,共5页Urban Roads Bridges & Flood Control

摘　　要：为了分析集料指标波动对高模量沥青混合料(HMM-13)路用性能的影响规律,分别制备了10%、15%、18%三种针片状含量,10.5%、12.5%、15%、18%四种粉尘含量(占0~3 mm料比例)与55%、60%、70%三种砂当量的HMM-13沥青混合料,测试其高、低温性能及水稳定性能。试验结果显示:针片状含量的增加会导致HMM-13混合料的水稳定性能衰减1.60%,高温性能衰减30.47%,低温性能衰减6.59%;粉尘含量的增加会导致HMM-13混合料的水稳定性能增加3.20%,高温性能增加20.19%,低温性能衰减4.96%;砂当量的降低会导致HMM-13混合料的水稳定性能增加1.80%,高温性能增加12.23%,低温性能衰减5.98%。In order to analyze the influence of aggregate index fluctuations on the pavement performance of high-modulus asphalt mixture(HMM-13),HMM-13 asphalt mixtures with three needle flake contents of 10%,15%and 18%,four dust contents of 10.5%,12.5%,15%and 18%(accounting for 0~3 mm material proportion),and three sand equivalents of 55%,60%and 70%are prepared respectively to test the high-temperature,low-temperature and water stability performances.The experimental results show that the increase of needle flake content will lead to a 1.60%decrease of water stability performance of HMM-13,its high-temperature performance decreases by 30.47%and its low-temperature performance decreases by 6.59%.The increase of dust content will lead to a 3.20%increase of water stability performance,a 20.19%increase of high-temperature performance and a 4.96%decrease of low-temperature performance of HMM-13 mixture.The decrease of sand equivalent will lead to a 1.80%increase of water stability performance,a 12.23%increase of high-temperature performance and a 5.98%decrease of low-temperature performance of HMM-13 mixture.

关 键 词：针片状含量 粉尘含量 砂当量 高模量沥青混合料 路用性能 

分 类 号：U416.217[交通运输工程—道路与铁道工程]