Study for Quantitative Analysis of Loess Microstructure Influence

Abstract:

Microstructure is a important index of soil physical, mechanical and engineering properties, SEM images and computer image processing technology make the soil microstructure research developing rapidly in recent years, but the researches on the influence factors and important degree are rare. Process the images form scanning electron microscopy test with the image processing toolbox of MATLAB. Fractal dimensions, porosities and pore size distributions are calculated in different analyzing windows, thresholds and magnifications. The results show that:1) As the results of the experiment influenced greatly by the smaller analyzing windows, in order to get the real calculation value, the medium section was processed; 2) Fractal dimension values are less influenced than porosities and pore size distributions by different thresholds; 3) Too big magnification can cause inaccurate fractal dimensions. Porosities and pore size distributions are inverse growing with increasing of magnification.

• Periodical: Advanced Materials Research (Volumes 594-597)
• Pages: 522-526
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.594-597.522
• Online since: November 2012
• Authors: Peng Ran Song, Chang Ming Wang
• Keywords: Fractal Dimension, Image Processing, Microstructure, Porosity, SEM

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