| 摘要: |
| 测试了8种混合料类别、12种级配组成的稳定型橡胶改性沥青混合料的动态模量，分析了稳定型橡胶改性沥青混合料的动态力学性能特点.针对Witczak模型对稳定型橡胶改性沥青混合料动态模量预测效果不理想的问题，采用Levenberg Marquardt非线性回归方法修正了Witczak模型.结果表明：稳定型橡胶改性沥青混合料具有良好的动态力学性能；修正后的Witczak模型可以较好地预测稳定型橡胶改性沥青混合料的动态模量. |
| 关键词: 稳定型橡胶改性沥青混合料 动态力学特性 修正Witczak模型 动态模量预测 |
| DOI：10.3969/j.issn.1007 9629.2013.04.030 |
| 分类号: |
| 基金项目:国家自然科学基金资助项目（51278288）；山东省自然科学基金资助项目（ZR2011EEQ008） |
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| Dynamic Modulus Prediction of Stabilized Rubber Modified Asphalt Mixtures |
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GENG Li tao1, YANG Xin long1, REN Rui bo2, WANG Li zhi2
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1.Xinjiang Transportation Planning Surveying and Design Institute, Urumchi 830006, China;2.Shandong Provincial Key Laboratory of Road and Traffic Engineering inColleges and Universities, Shandong Jianzhu University, Jinan 250101, China
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| Abstract: |
| Dynamic moduli of stabilized rubber modified asphalt(SRMA) mixtures with twelve kinds of gradation composition in eight mixture types were tested, and dynamic mechanical characteristics of SRMA mixtures were analyzed based on the test results. In order to improve the prediction accuracy of Witczak model on dynamic moduli of SRMA mixtures, Levenberg Marquardt nonlinear regression method was used for the model revision. The results show that SRMA mixtures have good dynamic mechanical properties, and dynamic moduli of SRMA mixtures can be preferably predicted by the revised Witczak model. |
| Key words: stabilized rubber modified asphalt(SRMA) mixture dynamic mechanical characteristic revised Witczak model prediction of dynamic modulus |
