Incorporation of Glass from Used Photovoltaic Solar Modules into the Concrete Matrix of Construction as a Partial Replacement of Cement in Burkina Faso

Abstract

Several wastes can be recycled and used in the field of civil engineering. The incorporation of glass waste into the concrete matrix allows us to sustain and preserve natural resources. The aim of this study is to efficiently recycle glass waste from photovoltaic solar modules, for use in concrete as a partial replacement for cement. We obtained in this work different results depending on the amount of glass added to replace the cement. The tests began on the 7th day of concrete production and we waited until the twenty-eighth of concrete production, which is 10/29/2022, for the final compressions to be carried out. The control concrete P1 gives a value of 23.88MPa or 95.52% of 25MPa, the glass-enhanced concrete 10% of the weight of cement P2 presents a value of 24.66MPa or 99.04% of 25MPa, for the glass-enhanced concrete 15% of the weight of P3 cement we obtain 20.36MPa or 81.44% of 25MPa, Glass-enhanced concrete 20% of the weight of P4 cement gives a value of 17.88MPa or 71.52% of 25 MPA. P2 presents a higher result than that of the control concrete (24.66MPa > 19.49 MPa). We also note that the value of P2 is very close to the normal fixed during the formulation of the concrete. Therefore, we can say that the compression result of the 28th day of the improved concrete of the glass 10% of the P2 cement is acceptable compared to the others (P1, P3, P4). As the PV solar module has several components such as resin, Tedlar, solar cells and aluminum, it is not excluded to make a hypothesis on the chemical impact of these in the glass powder. This requires full-fledged research on the properties of used glass in order to improve the values of the compressive strength and to draw a conclusion on the incorporation of glass into the concrete matrix in Burkina Faso. The use of waste glass in              concrete will contribute to sustainable development. The incorporation of glass waste into the concrete matrix allows us to reduce associated carbon dioxide emissions and lower cement production costs.