Mortars with incorporation of phase change materials (PCM) have the ability to regulate the temperature
inside buildings, contributing to the thermal comfort and reducing the use of heating and cooling
equipment. However, it is important that they present a good behavior when subjected to aggressive conditions.The main purpose of this study was the effect of high temperatures on mortars with PCM. It was
observed that the exposure to high temperatures leads to a decrease in the flexural, compressive and
adhesion strengths. However, the behavior of the mortar with PCM is similar to reference mortars.