This work describes the investigation of the final flotation waste (FFW),
originating from the RTB Bor Company (Serbia), as the main component for the
production of glass-ceramic materials. The glass-ceramics was synthesized by
the sintering of FFW, mixtures of FFW with basalt (10%, 20%, and 40%), and
mixtures of FFW with tuff (20% and 40%). The sintering was conducted at the
different temperatures and with the different time duration in order to find
the optimal composition and conditions for crystallization. The increase of
temperature, from 1100 to 1480?C, and sintering time, from 4 to 6h resulted
in a higher content of hematite crystal in the obtained glass-ceramic (up to
44%). The glass-ceramics sintered from pure FFW (1080?C/36h) has good
mechanical properties, such as high propagation speed (4500 m/s) and hardness
(10800 MPa), as well as very good thermal stability. The glass-ceramics
obtained from mixtures shows weaker mechanical properties compared to that
obtained from pure FFW. The mixtures of FFW with tuff have a significantly
lower bulk density compared to other obtained glass-ceramics. Our results
indicate that FFW can be applied as a basis for obtaining the construction
materials.
Behavior of Aging, Micro-Void, and Self-Healing of Glass/Ceramic Materials and Its Effect on Mechanical Properties
