Effect of Ash from Thermal Conversion of Municipal Waste on the Strength Parameters and Frost Resistance of Cement Mortars

Abstract. The paper presents the possibility of using waste, fly ash, generated in the process of thermal conversion of municipal waste in cement mortar technology. For the study, fly ash in the amount of 5% to 30% by weight of cement was used as a substitute for sand. A total of 7 different cement mortars were made, including a standard (control) mortar. The following tests were performed for the prepared samples: flexural and compressive strength after 7 and 28 days of maturation, frost resistance, water absorption, and consistency test for fresh mortars.