Paper Title
Recovery Of Waste Tetra Pak Materials And Its Application In Concrete

Abstract
In this research we use gamma radiation as a tool for structural modification of recovered materials from waste Tetra Pak packages and its use for preparing concrete; in order to improve the mechanical properties and to contribute to protecting the environment. The concrete specimens had up to 30% of recovered materials with small sizes between 1.5 mm and 3.0 mm, and they were irradiated to doses of 200 and 300 kGy. The results show that the compressive strength and modulus of elasticity values decrease when increasing the addition of waste Tetra Pak concentration. However, improvements of 39% and 27% were obtained for compressive strength and young modulus, respectively, with applying radiation. Keywords-Waste materials, Tetra Pak packages, Concrete, Gamma Radiation, Mechanical Properties.