Steel reinforcing bars can be used within the build-up of a concrete masonry wall, within cavities that are then filled with poured concrete. Alternatively, steel welded wire mesh overlaid with cement plaster can be attached to interior or exterior wall surfaces with steel dowels.
Concrete block masonry construction with steel reinforcement, Canada (B. McEwen)
An adobe building reinforced externally with steel wire mesh overlaid with cement plaster, Peru (N. Tarque)