ANALYSING INNOVATION AND SUSTANABILITY IN CONSTRUCTION: THE CASE OF PLASTIC BOTTLE HOUSES IN THE YOPIPILA PROJECT IN CABO DELGADO, MOZAMBIQUE

Abstract

The Yopipila Project initiative implemented in Cabo Delgado, Mozambique, proposes an innovative solution for the construction of houses using recycled plastic bottles. This research analyzes the creativity and sustainability aspects of the initiative, evaluating its effectiveness through four main dimensions: structural resistance, economic viability, environmental impact and operational challenges. The methodology used to carry out the study combined technical analysis with qualitative data, which were obtained through questionnaires and interviews submitted to residents as well as technicians responsible for the construction of houses made of plastic bottles. The results obtained demonstrate that the project: recycled nearly 31,000 plastic bottles, reduced construction costs by 40%, compared to traditional methods used for building houses in the region, produced buildings with good structural resistance, as well as being able to offer excellent thermal and acoustic insulation. Despite the benefits, significant challenges were identified, including: total financial dependence on external sources for the construction of the houses, and the need for complex logistics for the acquisition and preparation of the necessary materials. The data obtained in the study confirm that the use of recycled plastic bottles represents a viable and sustainable alternative for construction in contexts with limited resources, combining economic and environmental benefits. The study concludes with recommendations for improving operational efficiency, financial sustainability and viability.