Úprava a využití umělého kameniva při výrobě betonových kompozitů.

Abstract

To protect the environment and ensure sustainability in the construction industry is also looking for new ways to reduce the amount of waste deposited in landfills. The replacement of individual components with secondary raw materials leads to a reduction in the number of mineral resources used and to a reduction in the carbon footprint of CO2 as an environmental load indicator. This thesis describes experimental research, the aim of which was to verify the possible use of locally produced ladle furnace slag in cement composites. The ladle furnace slag was ground to two different measuring surfaces, coarse in a vibrating mill and fine in a ball mill. The proposed mixtures were with 10, 20 and 30 percentage replacement of cement CEM I, CEM II, CEM III and CEM V. In the introduction, all input raw materials and their basic characteristics and standard requirements are described. The next chapter covers the methodologies used in measuring the physical-chemical and physical-mechanical properties of fresh and hardened mortar mixture. The experimental part of the work is divided into two stages. The first stage is focused on determining the properties of the input raw materials. The second stage is devoted to the properties of the proposed mixtures in the fresh and hardened state and the subsequent evaluation of the results for each characteristic, including the statistical evaluation. The dissertation presents the achieved results demonstrating the possible use of a greater representation of ladle slag from the ladle furnace as a secondary raw material from the production of steel in the construction industry.