Influence of the ceramic recycled agreggates in the masonry mortars properties

•Influence of ceramic recycled aggregates in the masonry mortars properties.•Masonry mortars made with 6 dosages of ceramic recycled aggregates (CRA).•Strength of the mortar improves when the proportion of CRA is increased.•The shrinkage of mortars reaches similar values with replacements up to 50%. In this study the influence of the utilization of ceramic recycled aggregates in the properties of masonry mortars is analyzed. The mortars were made with an initial relation cement–sand of 1: 6. The recycled aggregate used was added to the mixture in percentages of replacement of 20%, 35%, 50%, 70% and 100% of natural aggregate. The substitutions were made in volume. All manufactured specimens were cured for 28days under standard conditions. Once the curing period was completed the physical and mechanical properties were analyzed. After analyzing the results obtained in the tests a reduction in the density is observed as the percentage of substitution increases. Also, its behavior to flexion improves, the compressive strength is increased and the coefficient of water absorption is reduced. The shrinkage can be considered acceptable up to percentages of replacement of 50%.