Research on the Correlation between Performance Evaluation Indicators of Asphalt Mixtures Based on AMPT
颜志远YAN Zhi-yuan
（中铁十一局集团有限公司,武汉430061 )
( China Railway 11th Bureau Group Co.,Ltd., Wuhan 430061 , China )
摘要:基于AMPT测试方法获得沥青混合料的动态模量、剪切流动速率和蠕变柔度,与常用的沥青混合料路用性能评价指标进行关联性研究。结果表明:动态模量与动稳定度值之间关联性一般,但动态模量较动稳定度具有更好的精度和更大的可信性;CTM的测试指标与动态模量间无法建立较好的关联性;剪切流动速率和动稳定度.CTM抗剪强度以及马歇尔指标之间均无法建立较好的关联性;蠕变柔度与弯曲应变、弯曲劲度指标间也均无法建立较好的关联性。
Abstract: The dynamic modulus,shear flow rate and creep flexibility of asphalt mixture were obtained based on AMPT test methodand the correlation between them and commonly used pavement performance evaluation indexes of asphalt mixture was studied. The resultsshow that the correlation between dynamic modulus and dynamic stability is general, but the dynamic modulus has better accuracy andgreater reliability than the dynamic stability.The test index of CTM cannot establish a good corelation with the dynamic modulus. There isno good correlation between shear flow rate, dynamic stability, CTM shear strength and Marshall Index ; The creep flexility, bending strainand bending stiffness can not establish a good correlation.
关键词:道路工程;沥青混合料;沥青混合料性能试验机;路用性能
Key words: road engineering; asphalt mixture; asphalt mixture performance tester; road performance
价值工程-文章出处：颜志远.基于AMPT的沥青混合料性能评价指标之间的关联性研究[J].价值工程,2023,42(20):126-128.
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