The present study is based upon the experimental results obtained by reloading and unloading concrete brick masonry
samples constructed in modified rat-trap bond under uniaxial compression perpendicular to their bed joints. Considering the
advantage of air gap between perpends for thermal comfort, Flemish bond was modified as rat-trap bond using half scale
modular bricks (95mm × 95mm × 45mm) and called Modified Rat-Trap bond concrete brick masonry. The air gap created
within the wall was filled up with insulating material thermocol (Expanded polystyrene).
