Abstract
The article examines the possibility of using micronized rubber powder from recycled used car tires in a deformable tiles adhesive. For this purpose, part of the sand was replaced with the tested material. The effect of modification on the key properties of deformable tile adhesives was examined – initial adhesion, adhesion after water immersion, thermal ageing, freeze-thaw cycles and deformability. A very beneficial effect of the analyzed powders on the deformability of mortars was demonstrated. A small share of additives had a beneficial effect on the adhesion of adhesive mortars to the substrate.