Steel Reinforced Grout (SRG) composites, comprising Ultra High Tensile Strength Steel (UHTSS) textiles embedded in inorganic matrices, have experimentally proved effective for a number of structural retrofitting applications. Nevertheless, existing knowledge is mainly based on the behaviour of SRG systems with a single textile layer, whereas the use of more plies may be required when strengthening large structural members. This paper presents the preliminary results of an experimental study on SRG composites comprising multiple layers of galvanised UHTSS textiles within a geopolymer mortar. Single-lap bond tests were carried out to investigate the effect of number of plies (one, two or three) and fabric density (4 or 8 cords/in) on the SRG-to-concrete bond performance, which is crucial for the effectiveness of the retrofitting work.