Internal defects and water absorption behavior of environmentally friendly brick-MAB using film neutron radiography technique

MK Alam, MR Islam, S Saha, MN Islam, SM Azaharul Islam
2014 Journal of Bangladesh Academy of Sciences  
Film neutron radiography (NR) technique has been adopted to study the internal defects like homogeneity, porosity, incremental intrusion area, initial rapid absorption (IRA) and water penetrating height/behavior of the automated machine made environmentally friendly brick-MAB sample. Thermal neutron radiography facility installed at the tangential beam port of 3 MW TRIGA MARK-II reactor was used in this study. In here optical density or gray values of the neutron radiographic images of the
more » ... images of the sample was measured. From the measurement it was found that most of the areas of this sample were homogeneous, which indicateed the presence of a little bit internal porosity and absorption of water to be very poor. It also showed that its initial rapid absorption was less and water absorption behavior was capillary and of wave shape.
doi:10.3329/jbas.v38i1.20197 fatcat:sw4trbnmxrd7xhaz3nfhm3fipe