Thermal behaviour of hollow blocks and bricks made of concrete doped with waste tyre rubber

This study examines the thermal behaviour of light concrete construction elements (bricks, slabs and joists) made with different amounts of rubber particles (0%, 10% and 20%) from end-of-life tyres. Once the bricks, slabs and joists were obtained, three different closed test cells were built and subjected to several heating/cooling periods. By recording the temperature inside the cells and inside their enclosures (walls, ceilings, floors), it was found that the thermal behaviour depended on the doping percentage of rubber particles. The temperature gradient between the inside and the outside of the cell varied up to 5.6% in the case of using 20% lightener.