Cement and Concrete Production Using White Waste Glass From Recycled Bottles From Recycled Bottles

Abstract

Most researchers focus on using waste glass as a partial replacement for fine aggregate in the cement matrix. This article proposes an alternative method of managing waste glass in the concrete industry, as an addition to concrete in the form of finely ground glass powder and as a component of the cement. Waste glass ground into a glass powder was dosed into concrete in quantities of 5 and 10% of the weight of cement while reducing the same amount of fine aggregate. Tests that were carried out on three concretes (including a control concrete) included compressive strength, water penetration depth and water absorption. Pre-shredded waste glass from white bottles was also ground together with previously burned Portland clinker. The glass was dosed in quantities of 6 and 12% of the weight of clinker. In this way, two types of cement were obtained: cement with the addition of waste glass and the control cement. Tests carried out included compressive strength after 2, 7, 14, 28 and 90 days, the beginning of cement setting time and its grinding degree. An analysis of the obtained test results confirmed the possibility of using waste glass in a way other than previously proposed. Concretes including fragmented glass from bottles have obtained satisfactory results of compressive strength, water absorption and penetration. Cements obtained as a ground mixture with waste glass were characterized by much better mechanical parameters compared to the control sample cement.