1. Introduction
The construction industry is one of the largest consumers of raw materials today.
For a sustainable future, is needed a drastic reduction in the use of raw materials.
For this it is important to think about recycling of materials and reduction of waste during the construction of buildings and during its life, and also in the recycling of demolition materials [1–4].
One way of reusing is the use of EPS – expanded polystyrene, that can replace the gravel in the production of lightweight concrete [5].
EPS is widely used, for example, in electronic products packaging, and could be reused.
Lightweight concrete is normally done by incorporating lightweight aggregates such as pumice, perlite, expanded clay or vermiculite, or by air-entraining in the concrete mix