| 引用本文: | 孙国文,孙伟,张云升,刘志勇.水泥基复合材料界面过渡区体积分数的定量计算[J].哈尔滨工业大学学报,2011,43(11):110.DOI:10.11918/j.issn.0367-6234.2011.11.023 |
| SUN Guo-wen,SUN Wei,ZHANG Yun-sheng,LIU Zhi-yong.Quantitative calculation on volume fraction of interfacial transition zone in cement-based composite materials[J].Journal of Harbin Institute of Technology,2011,43(11):110.DOI:10.11918/j.issn.0367-6234.2011.11.023 |
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| 摘要: |
| 为了计算水泥基复合材料的界面过渡区体积分数,采用最邻近表面分布函数和骨料比表面积2种方法,结合实际骨料的筛分曲线,给出了界面过渡区体积分数定量关系式.结果表明:单位体积水泥基复合材料中,当骨料的体积分数<0.5,界面厚度<50μm时,2种方法计算的误差约为10%;界面区厚度越小,2种方法计算的误差也越小. |
| 关键词: 水泥基复合材料 体积分数 界面过渡区 粒径分布 |
| DOI：10.11918/j.issn.0367-6234.2011.11.023 |
| 分类号:TU528 |
| 基金项目:国家重点基础研究发展计划资助项目(2009CB623200);国家高技术研究发展计划资助项目(2008AA030794) |
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| Quantitative calculation on volume fraction of interfacial transition zone in cement-based composite materials |
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SUN Guo-wen1,2, SUN Wei1, ZHANG Yun-sheng1, LIU Zhi-yong1
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1.School of Material Science and Engineering,Southeast University,211189 Nanjng,China;2.School of Materials Science and Engineering,Shijiazhuang TieDao University,050043 Shijiazhuang,China)
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| Abstract: |
| To calculate the volume fraction of interfacial transition zone(ITZ) in cement-based composite materials,two quantitative expressions combining with actual sieve curve were put forward based on the most nearest surface distribution function and an approximate way of surface area of aggregates.The results show that the error of the ITZ fraction was about 10 percent,when the volume fraction of aggregate and the ITZ thickness per unit volume concrete is less than 0.5,50 μm,respectively,and the smaller the ITZ thickness,the smaller the calculated difference between two methods. |
| Key words: cement-based composite materials volume fraction interfacial transition zone particle size distribution |
