Title :
Neutron radiography studies of water migration in construction porous materials
Author :
Abd, Abd El-Ghany El ; Czachor, Andrzej ; Milczarek, Jacek J. ; Pogorzelski, Jerzy
Author_Institution :
Inst. of Atomic Energy, Swierk, Poland
Abstract :
Neutron radiography has been used to study the wetting of construction porous materials by water. The wetting front was found to propagate proportionally to the square root of time. The observed changes in water profiles were interpreted in terms of capillary flow in ensemble of tubes of various diameters. The tube radii distribution function was determined within the Washburn approximation.
Keywords :
building materials; capillarity; flow through porous media; neutron radiography; porous materials; water; wetting; Washburn approximation; capillary flow; capillary models; construction porous materials; neutron radiography; tube radii distribution function; water migration; water profiles; wetting; Building materials; Distribution functions; Fluid flow; Hydrogen; Magnetic materials; Neutrons; Nonlinear equations; Nuclear magnetic resonance; Permeability; Radiography; Capillary models; neutron radiography; porous materials; wetting;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2005.843642
