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材料研究学报  2007, Vol. 21 Issue (6): 613-621    
  论文 本期目录 | 过刊浏览 |
引气混凝土气泡尺寸分布的三维重构
陈惠苏;孙伟
东南大学江苏省土木工程材料重点实验室 南京211189东南大学材料科学与工程学院南京211189
引用本文:

陈惠苏;孙伟. 引气混凝土气泡尺寸分布的三维重构[J]. 材料研究学报, 2007, 21(6): 613-621.

全文: PDF(892 KB)  
摘要: 基于体视学和几何概率理论给出了引气混凝土三维气泡尺寸重构方法,由二维平面上气泡截面圆的直径分布计算气孔的实际尺寸分布,并生成了一个多尺度分布的立方体模型结构验证了该三维重构方法的合理性.然后,使用邻近粒子表面最近间距的解析解研究了气泡细度和混凝土含气量对邻近气泡表面最近间距平均值的影响,并与用传统方法得到的气泡间距因子进行了比较.结果表明,在含气量相同的条件下,用传统方法得到的气泡间距因子是邻近气泡表面最近间距平均值的3—4倍.该方法的给出,为从二维截面上获得的引气混凝土中的气泡截面圆信息获取实际气泡在三维空间中的气泡间距信息提供了依据.
关键词 无机非金属材料引气混凝土间距因子气泡    
Key words
收稿日期: 1900-01-01     
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