期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
稳定型橡胶改性沥青混合料动态模量预估 被引量:16
1
作者 耿立涛 杨新龙 +1 位作者 任瑞波 王立志 《建筑材料学报》 EI CAS CSCD 北大核心 2013年第4期720-724,共5页
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... 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. 展开更多
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
在线阅读 下载PDF
Viscoelastic micromechanical model for dynamic modulus prediction of asphalt concrete with interface effects 被引量:4
2
作者 董满生 高仰明 +2 位作者 李凌林 王利娜 孙志彬 《Journal of Central South University》 SCIE EI CAS CSCD 2016年第4期926-933,共8页
A viscoelastic micromechanical model is presented to predict the dynamic modulus of asphalt concrete (AC) and investigate the effect of imperfect interface between asphalt mastic and aggregates on the overall viscoe... A viscoelastic micromechanical model is presented to predict the dynamic modulus of asphalt concrete (AC) and investigate the effect of imperfect interface between asphalt mastic and aggregates on the overall viscoelastic characteristics of AC. The linear spring layer model is introduced to simulate the interface imperfection. Based on the effective medium theory, the viscoelastic micromechanical model is developed by two equivalence processes. The present prediction is compared with available experimental data to verify the developed framework. It is found that the proposed model has the capability to predict the dynamic modulus of AC. Interface effect on the dynamic modulus of AC is discussed using the developed model. It is shown that the interfacial bonding strength has a significant influence on the global mechanical performance of AC, and that continued improvement in surface fimctionalization is necessary to realize the full potential of aggregates reinforcement. 展开更多
关键词 asphalt concrete imperfect interface rheological properties MICROMECHANICS
在线阅读 下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部