Steel residues in general have a high cementing power, which makes them potential substitutes for Portland cement. One of these residues is that of desulfur-ization, which currently has no technological application. In this sense, the objective of this work was to evaluate the application of this residue in mortars 1:1:6:1.5 (cement:lime:sand:water), as a substitute for cement in percentages of 0, 10, 20, and 30%. The tests carried out were consistency, mass density, compressive strength, water absorption, and porosity, in addition to incorporated air content. The results demonstrate that the application of the residue as a cementitious material is possible, due to the good mechanical parameters obtained.
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