ABSTRACT
Experimental investigation and numerical simulation are carried out to assess the behavior of unreinforced concrete masonry walls using Steel-Fiber Reinforced (SFR) high strength mortar, with a compressive strength of 60 MPa and 3% fiber by weight of cement, in the joints and the plaster. The wall constructed with SFR mortar in the joints showed better stability in the wall after failure, with a small increase in the shear capacity. The application of the surface treatment using concrete or mortar has been proposed by many researchers. The use of steel fiber facilitates the application of the mortar layer utilizing the common trowel because it holds the mortar together. The SFR high strength mortar comprises steel fibers and silica fume. After several trials a strong, durable and economical mix for the SFR mortar was determined. A low water/binder ratio and silica fume was used to increase the compressive strength of the mortar.
