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首页> 外文会议>Performance Tests for Hot Mix Asphalt(HMA) Including Fundamental and Empirical Procedures >Obtaining Creep Compliance Parameters Accurately from Static or Cyclic Creep Tests
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Obtaining Creep Compliance Parameters Accurately from Static or Cyclic Creep Tests

机译：从静态或循环蠕变测试中准确获取蠕变柔量参数

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摘要

Obtaining creep compliance parameters that accurately represent the creep response of asphalt mixtures is critical for proper evaluation of the thermal cracking performance, as well as load induced cracking performance of asphalt pavements. A power law, which uses three parameters to describe the creep compliance curve, is commonly used for asphalt mixtures. However, the specific values of the parameters obtained can depend on both the testing and the data interpretation methods used. Different testing methods (for example, static versus cyclic creep) offer different advantages and disadvantages related to complexity in testing, as well as in the sensitivity of the data obtained from each test to the compliance parameters of interest. In general, cyclic creep tests provide greater sensitivity and accuracy at shorter loading times, while static creep tests are more accurate and reliable for the determination of the long-term creep response.
机译：获得准确表示沥青混合料的蠕变响应的蠕变柔度参数对于正确评估热裂化性能以及荷载引起的沥青路面的裂化性能至关重要。幂律通常使用三个参数来描述蠕变柔量曲线，通常用于沥青混合料。但是，获得的参数的特定值可能取决于所使用的测试和数据解释方法。不同的测试方法（例如，静态蠕变与循环蠕变）在测试复杂性以及从每个测试获得的数据对相关合规性参数的敏感性方面具有不同的优缺点。通常，循环蠕变测试可在较短的加载时间下提供更高的灵敏度和准确性，而静态蠕变测试对于确定长期蠕变响应则更为准确和可靠。

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