This research work derives from two fundamental problems that are currently taking place: the pollution and environmental impacts generated by the massive accumulation of plastic waste and construction materials, and the housing deficit, the structural situation and the problems related to the quality of the materials that are being used to build them; mainly in the rural populations of Colombia that are subjected to displacement, violence, natural phenomena, and lack of attention and investment by government bodies. Therefore, in view of the need to go deeper into the technology of raw materials to generate new materials, the objective of this text was to study the use of post-consumer thermoplastics made of high-density polyethylene, polyvinyl chloride, and polyethylene terephthalate, reinforced with fique fiber, in the manufacture of construction elements, with the purpose of improving the structural and habitability conditions in rural housing. We implemented a documentary and scientific methodology with an experimental method and mixed approach, and after a research process on the physical and mechanical properties of the materials, six prototypes with different proportions were developed, resulting from the fusion of recycled plastics and fique fiber, determining the mechanical behavior of the compounds from material resistance testing to traction, compression, flexion, heat, and stability. Thus, it was determined that the fiber does not increase resistance, but it does increase the capacity of deformation without incurring in the breakage, which gives it wide properties of ductility
