| Abstract [eng] |
The dissertation examines the possibility of developing 3D printing mixtures and using various mineral and plant additives to reduce carbon dioxide (CO2) emissions and the global warming potential (GWP) of buildings under construction in the construction industry. The research examined the processing and use of waste, not only as a binding material analogue (waste ground glass, ground glass produced from household waste streams, fly ash), but also as artificial aggregates from cogeneration boiler bottom slag, wood sawdust and hemp shives. A simplified carbonization technology for artificial fillers is also presented, allowing for the effective absorption of CO2 gas and reducing production costs. A new method for neutralizing plant materials using a calcium nitrate solution has been developed and applied, which does not have a negative impact on cement hydration processes and allows for the effective use of these materials in 3D printing mixtures. The effect of 3D printing mixtures modified with artificial aggregates with plant materials or waste on the main physical and mechanical properties of the mixture, as well as the final CO₂ emissions of the printed mixture, was studied. The compositions of modified 3D printing mixtures suitable for use in low-rise civil construction projects are presented, assessing the minimization of the use of binders and aggregates, emphasizing the ecological advantage and potential for wider industrial application. |
