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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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沥青混合料模量不同测试方法的比较分析
Keywords: 道路工程,沥青混合料,动态模量,弯拉模量,劈裂模量,反算模量
Abstract:
为了能够准确得到路面沥青混合料的模量,通过弯拉劲度模量试验、劈裂劲度模量试验、单轴压缩动态模量试验以及FWD反算模量等4种不同测试方法,得到了各测试方法对应的模量值及其发展规律,并对沥青混合料的不同模量测试结果进行了比较分析。结果表明,在相同的试验条件下,动态模量最大,其次为弯拉、劈裂模量,反算模量最小。模量值与试验条件也有很大关系,影响模量的试验因素主要有温度和试验加载的频率。温度越高,模量越低;频率越高,模量越大。
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