only 3% of SMC were formed by press

only 3% of SMC were formed by pressing and then fired at 950◦C.Several properties were tested but thermal conductivity (TC) forfired samples has not been yet addressed.In order to contribute to the further development of this wayof SMC recycling, in this paper, different percentages of SMC wereused for FCBs manufacturing. Special attention was paid to the TCin order to determine if SMC addition may improve thermal insu-lation of FCBs. From this point of view, SMC addition might be notonly a sustainable way of recycling but an element which increasesthe thermal insulation for buildings. Therefore FCBs made by usingSMC will provide lower wall thermal transmittance and thus anenergy saving. In order to comply requirements abide by settledlaw for structural clay bricks [32] compressive strength (CS) andwater absorption (WA) have been tested to determine the maxi-mum percentage of SMC that can be added.