• Matovic, Branko
• Logar, Mihovil
• Cocic, Sasa
• Tasic, Visa
• Cocić, Mira
• Devic, Snezana
• Eric, Suzana

Abstract

<jats:p>This work describes the investigation of the final flotation waste (FFW),originating from the RTB Bor Company (Serbia), as the main component for theproduction of glass-ceramic materials. The glass-ceramics was synthesized bythe sintering of FFW, mixtures of FFW with basalt (10%, 20%, and 40%), andmixtures of FFW with tuff (20% and 40%). The sintering was conducted at thedifferent temperatures and with the different time duration in order to findthe optimal composition and conditions for crystallization. The increase oftemperature, from 1100 to 1480?C, and sintering time, from 4 to 6h resultedin a higher content of hematite crystal in the obtained glass-ceramic (up to44%). The glass-ceramics sintered from pure FFW (1080?C/36h) has goodmechanical properties, such as high propagation speed (4500 m/s) and hardness(10800 MPa), as well as very good thermal stability. The glass-ceramicsobtained from mixtures shows weaker mechanical properties compared to thatobtained from pure FFW. The mixtures of FFW with tuff have a significantlylower bulk density compared to other obtained glass-ceramics. Our resultsindicate that FFW can be applied as a basis for obtaining the constructionmaterials.</jats:p>

Topics

• density
• glass
• glass
• hardness
• ceramic
• crystallization
• sintering