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采用SPT试验研究改性沥青混合料的高温性能 被引量:7

Research on High-temperature Performance of Modified Asphalt Mixtures by SPT Test
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摘要 通过美国国家公路合作研究计划项目(NCHRP)9-19简单性能试验(Simple Performance Test,简称SPT)的3个关键测试参数即沥青混合料动模量(/E*/)、重复加载永久变形(流动数)和静态蠕变(流变时间)的试验分析,研究SBS、PR、RS 3种改性沥青混合料的高温稳定性能,说明SPT是简单实用、经济有效的沥青混合料性能评价方法,可用于沥青混合料的设计和验证。 Based on test analysis for 3 key test parameters,i.e.dynamic modulus of asphalt mixture(|E*|),permanent deformation by repetitive loading(number of flow)and static creep deformation(time of flowing deformation)in Simple Performance Test(SPT)of National Cooperative Highway Research Program(NCHRP)9-19,this paper studies high-temperature stable performance of SBS,PR and RS modified asphalt mixtures,and describes performance evaluation methods that verify SPT is a simple and practical,economical and effective asphalt mixture and can be used for design and verification of asphalt mixtures.
出处 《公路交通技术》 2010年第6期24-28,共5页 Technology of Highway and Transport
关键词 改性沥青混合料 简单性能试验 动模量 流变时间 流动数 modified asphalt mixture Simple Performance Test(SPT) dynamic modulus time of flowing deformation number of flow
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参考文献10

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