Introduction: This article is the product of research carried out in the period 2020 to 2021, with the academic support of the Francisco José de Caldas District University, Bogotá Technological Headquarters – Colombia. Problem: propose a construction material to the housing sector, especially to the department of La Guajira, which faces a high housing deficit in Colombia. Objective: the objective of this research project is the characterization of 600 ml, 1.5 liter and 2.0 liter PET bottles, filled with sand and with a particle size of 1.19 mm. Methodology: 12 test tubes were designed per bottle size, the respective weighings were carried out before and after filling; The tests carried out were under compression, subjecting them to rupture. Results: the different specimens presented similar resistances, the 600 ml specimen presented a higher breaking load than the 1.5 and 2.0 liter specimens. The ranges established for the elaborated tests are 138 ≤ breaking load (KN) ≤ 240. Conclusion: the compressive strengths of the two compared materials do not show significant differences. Brick resistance = 4.9 MPa and PET (600 ml) = 5.2 MPa Originality: the bibliographic review presents a great variety of reusable products used for the manufacture of materials in housing construction, the originality is the behavior of the PET bottles filled with sand for a particle size of 1.19mm, subjected to compression tests in the universal testing machine. Limitations: We only worked with particle sizes of 1.19mm Keywords: Polyethylene terephthalate – PET (Polyethylene terephthalate), test tubes, resistance, breakage, particle.