| 沥青混合料均匀性与材料力学性能关系 |
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| 引用本文： | 彭勇,孙立军,石永久,王元清.沥青混合料均匀性与材料力学性能关系[J].哈尔滨工业大学学报,2009,41(6):142-145. |
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| 作者姓名： | 彭勇 孙立军 石永久 王元清 |
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| 作者单位： | 彭勇,PENG Yong(浙江大学,土木工程系,杭州,310058;清华大学,土木工程系,北京,100084);孙立军,SUN Li-jun(同济大学,教育部道路与交通工程重点实验室,上海,200092);石永久,王元清,SHI Yong-jiu,WANG Yuan-qing(清华大学,土木工程系,北京,100084) |
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| 基金项目： | 国家杰出青年科学基金 |
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| 摘 要： | 为研究沥青混合料均匀性与材料力学性能的关系,基于数字图像处理技术,通过沥青混合料均匀性指标,对沥青混合料均匀性与材料单轴抗压强度、劈裂强度以及抗剪强度间相互关系展开定量地研究.研究结果显示:沥青混合料均匀性与材料力学性能的绝对数值间没有直接的、明显的相关性,而与材料力学性能变异性间却有.均匀性较差的沥青混合料,其力学性能的变异性较大;均匀性较好的沥青混合料,其力学性能的变异性稍小.这表明控制沥青混合料的均匀性对控制材料力学性能变异性有着重要意义.
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| 关 键 词： | 沥青混合料 均匀性 力学性能 变异性 数字图像处理 |
Relationship between homogeneity and mechanical properties of asphalt mixture |
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| PENG Yong,SUN Li-jun,SHI Yong-jiu,WANG Yuan-qing.Relationship between homogeneity and mechanical properties of asphalt mixture[J].Journal of Harbin Institute of Technology,2009,41(6):142-145. |
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| Authors: | PENG Yong SUN Li-jun SHI Yong-jiu WANG Yuan-qing |
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| Affiliation: | 1. Department of Civil Engineering,Zhejiang University,Hangzhou 310058,China,2. Key Laboratory of Road and Traffic Engineering of Ministry of Education,Tongji University,Shanghai 200092,China;3. Department of Civil Engineering,Tsinghua University,Beijing 100084,China) |
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| Abstract: | Based on digital image processing,the relationship between homogeneity and uniaxial compressive strength,splitting strength as well as shear strength of asphalt mixture was quantitatively investigated by dint of the index of homogeneity. The results show that homogeneity has no direct and obvious relationship with the absolute value of mechanical properties of asphalt mixture,but it does with the variation of mechanical properties;the variation of mechanical properties is great for the asphalt mixture with worse homogeneity,while it is slight for the asphalt mixture with better homogeneity. It is indicated that the variation control of mechanical properties of asphalt mixture is significant for the homogeneity controlof asphalt mixture. |
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| Keywords: | asphalt mixture homogeneity mechanical properties variation digital image processing |
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