Experimental determination of moisture distributions in fired clay brick using a 252Cf source: A neutron transmission study

A neutron transmission method was proposed to study liquid transport in porous media. It was applied to study water penetration into two kinds of fired clay bricks. The results showed that the diffusion processes in the investigated samples are different. Water diffusivities and capillary absorption coefficients characterizing both the flow process and the brick samples were determined and compared. The proposed method is simple, accurate and reliable in studying water diffusion in porous media, in real time.

► A neutron transmission method was proposed to study liquid transport in porous media.
► It was used to study water diffusion in two kinds of fired clay bricks.
► The diffusivities and capillary coefficients were determined.