Utilization of LFS Slag for Synthesis of Construction Materials

Abstract

The thesis research investigates the utilization of Ladle Furnace Slag (LFS) in the production of construction materials. The main focus is on the possibility of using LFS as a substitute for sand in the manufacturing of concrete blocks by accelerated carbonation. This research examines the physical, chemical, and mechanical characteristics of concrete that contains LFS. The study uses a combination of experimental and analytical techniques, including compressive strength tests, X-ray Fluorescence (XRF), X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), and thermogravimetric (TGA) analysis. The results emphasize the environmental advantages of this method, particularly in terms of CO2 storage, as a result of the high calcium content of LFS. The study affirms that concrete made with LFS meets the standard requirements for non-load-bearing concrete blocks. This indicates that LFS-based concrete is a viable and sustainable substitute for traditional construction materials. The thesis tackles issues such as the fluctuation in compressive strength and the expansion of production processes. Suggestions for future research involve investigating the extended durability and conducting additional enhancements on mix design. This work not only establishes a basis for decreasing industrial waste and carbon emissions but also helps the progress of sustainable construction methods.

Date of Award	18 Jul 2024
Original language	American English
Supervisor	Nahla Alamoodi (Supervisor)