Multiscale spatial statistics for the internal structure and their relation to macroscopic properties in concrete

为了定量评价不同观测水平下混凝土的特征结构，从图像中获得二阶立体函数等空间统计量。统计数据与混凝土的宏观性能，特别是输运性能之间存在良好的相关性。此外，考虑到相关系数与火山灰反应之间的关系，掺入水泥的混凝土耐久性的提高可以通过小于分辨率的细孔的不连续来解释。

In order to quantitatively evaluate characteristic structures in concrete at different observation levels, spatial statistics such as the second order stereology function were obtained from images. There existed good correlations between the statistics and macroscopic properties of concrete, especially a transport property. Furthermore, taking account of the relationship between the correlations and the pozzolanic reaction, improvement of durability in concrete with blended cements can be explained by discontinuity of fine pores smaller than the resolution.