| Abstract [eng] |
The aim of the Master's thesis is to develop a new generation of concrete with a significantly reduced amount of Portland cement in order to reduce CO2 emissions of standard concrete formulations and to create a more environmentally friendly concrete formulation. The master 's final project consists of four parts: the analysis of the literature, the materials used in the research, the experimental methods and the results. The literature review provides an overview of the types of glass and their chemical composition. The possibility of using waste glass as a pozzolanic material and the risk of alkaline corrosion are investigated. The cases of how these risks can be managed or avoided are analysed. The CO2 emissions of replacing cement with glass are also compared. The section on materials used in the studies presents the materials used in the studies. The experimental methods section describes the methods used to test the samples. The experimental results section examines the influence of ground glass on the hydration of Portland cement and analyses the process of ground glass production. The physical and mechanical properties of the new concrete compositions, such as material density, compressive strength, shrinkage and expansion deformations, are determined. Studies on water absorption, porosity and resistance to freeze–thaw cycles were carried out. The environmental effects of the new compositions were evaluated and compared with standard concrete compositions. |
