Laboratory investigation was undertaken to develop high strength cementitious matrices for casting thin
ferrocement laminates ideally suited for structural repair/retrofit. The developed high strength mortar
matrices contain various combinations of silica fume and fly ash, and provide a good balance between
flowability and strength. The matrices developed had a 28-day compressive strength range from 48 to
64 MPa with a corresponding flow range from 129% to 138%. The developed high strength mortar was used
in producing ferrocement jackets for cylindrical stubs to examine its performance and efficiency when the
stubs are subjected to axial loads. The developed high strength ferrocement laminates seem to provide
appreciable increase in load carrying capacity, lateral confinement and ductility. In terms of ferrocement
efficiency, the stubs wrapped with the laminates containing 2 and 4 layers of welded wire meshes, WWM,
showed about 16% and 29% increase in axial stress respectively, with a corresponding increase in axial
strain of about 32% and 70% respectively. Based on the findings of the present investigation, high strength
ferrocement laminates containing a specific number of welded wire meshes can be considered as a promising
material for maintenance and rehabilitation of concrete structures, especially when using high
strength and flowable mortar with WWM complying with ferrocement specifications.