The Determination Of Diffusive Tortuosity In Concrete Specimens Using X-Ray Microtomography

Archives of Metallurgy and Materials

P. Ranachowski¹  D. Jóźwiak-Niedźwiedzka¹  Z. Ranachowski¹  M. Dąbrowski¹  T. Dvorak²  S. Kudela² 

[1] INSTITUTE OF FUNDAMENTAL TECHNOLOGICAL RESEARCH, POLISH ACADEMY OF SCIENCES, 5B, PAWI?SKIEGO STR., 02-106 WARSZAWA, POLAND;INSTITUTE OF MATERIALS AND MACHINE MECHANICS, RACIANSKA 75, 831-02 BRATISLAVA, S?OVAKIA

关键词: Keywords: X-ray tomography;    concrete microstructure;    diffusive tortuosity;   

DOI  :  10.1515/amm-2015-0140

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

The paper presents a method of pore connectivity analysis applied to specimens of cement based composites differing in water to cement ratio. The method employed X-ray microtomography (micro-CT). Microtomography supplied digitized three-dimensional radiographs of small concrete specimens. The data derived from the radiographs were applied as an input into the application based on the algorithm called ‘random walk simulation’. As the result a parameter called diffusive tortuosity was established and compared with estimated porosity of examined specimens.

【 授权许可】

Unknown