Calculation of the effective diffusion coefficient during the drying of clay samples

作者: Milos Vasic , Zagorka Radojevic , Zeljko Grbavcic

DOI: 10.2298/JSC110717191V

关键词:

摘要: The aim of this study was to calculate the effective diffusion coefficient based on experimentally recorded drying curves for two masonry clays obtained from different localities. calculation method and computer programs mathematical second Fick’s law Cranck equation were developed. Masonry product shrinkage during drying taken into consideration first time appropriate correction entered calculation. results presented in this paper show that values coefficient determined by designed programs (with without for shrinkage) have similar those available literature the same clays. Based mathematically prognostic value coefficient, it concluded that, whatever initial mineralogical composition clay, there is 90% agreement calculated with ones. When a masonry products is introduced step, even better.

参考文章(1)
John Crank, The mathematics of diffusion ,(1956)