Thermomechanical characterization of a cement mortar based on tyre granules

Industrial waste management is a topical issue for both the present and the future. Current policies around the world encourage waste recovery as a means of managing waste. This study aims to recover tyre granules in construction materials. The goal is to determine the thermomechanical characteristics of cementitious mortars made from tyre granules. To achieve this, we formulated mortars in accordance with standard EN 196-1 for the control mortar. Tyre granules were then added to the control mortar at rates of 5%, 10%, 15% and 20% to produce formulations MT5, MT10, MT15 and MT20, with MR as the reference mortar. These formulations were tested using thermal probe, compression strength and three-point bending strength tests. The test results show that the addition of tyre granules leads to a reduction in thermal conductivity. Compressive and flexural strengths decrease with increasing tyre granule content. Flexural strength decreases from 5.95MPa for the reference mortar to 1.31MPa for the MT20 mortar. Compressive strength decreases from 29.36MPa for MR mortar to 7.95MPa for MT20 mortar. Compressive and flexural strengths indicate that 10% is the optimal rate for incorporating tyre granules into cement mortar.