This study aims in examining the fracture behavior of recycled mortar specimens using acoustic emission technique. To produce the recycled mortar beams a portion of fine recycled concrete aggregates and natural sand has been used and the specimens were tested in three-point bending and compression. The ultrasonic velocity and dynamic elastic modulus of the samples were also determined. This work led to a comparison of the fracture behavior of plain and fiber-reinforced recycled mortar specimens with a baseline mortars fabricated with 100% natural sand. The results show that the use of recycled aggregates in mortars can be successfully characterized by acoustic emission parameters. This approach offers a reliable evaluation of the fracture mechanism making acoustic emission a valuable nondestructive evaluation tool in the growing sector of recycled building materials.