Abstract Recycled glass, due to its high content of silica, can show some pozzolanic activity when it has a small enough particle size, this represents an alternative for the manufacture of mortars, as a partial substitute for portland cement, with which it is possible to reduce the waste of this material that can take up to 4000 years to degrade. This work studies the behavior of mortar mixtures with the addition of silica from recycled glass, and its impact on the values of fluidity, fineness, and density. The methodology was managed according to the factor analysis for the experimental design, finding two factors such as the curing time of the samples and the percentage of replacement of cement by the recycled glass, establishing percentages of 5%, 10%, 15%, 20%, 25% and 30%. The results obtained indicate a decrease in density up to 5.34%, additionally, the melt index was reduced to 13.65%, and the specific surface of the processed waste reached a value of 41.43% lower than the of cement. These results indicate that the project represents a viable alternative for the reincorporation of recycled materials to the production cycle, also contributing to the reduction of the impact generated by the construction industry, seeking new alternatives in the use of alternative materials.