Crystallization behavior of glass ceramics prepared from the mixture of nickel slag, blast furnace slag and quartz sand

Influence of SiO2/Al2O3 on crystallization characteristics of synthetic coal slags

“…Diopside is a monoclinic pyroxene mineral with composition CaMgSi 2 O 6 . It forms variably colored but typically dull green crystals [36] with thin white [38,39]. But when there is high content of Al 2 O 3 , iron oxide could react with aluminosiliate.…”

Life Cycle Assessment (LCA) of Different Kinds of Concrete Containing Waste for Sustainable Construction

“…This replacement also allows a reduction in energy consumption and CO 2 emissions, since blast furnace slag is a product that has already undergone the transformation from carbonate to oxide with the consequent release of CO 2 . Blast furnace slags can be used in several applications, including road construction base materials after grinding and cementitious materials [21] since they contain high amounts of calcium silicate, glass, and high-quality ceramic products [22] They also are mechanochemically treated so they can be recycled as a low-cost adsorbent [23,24]. Thus, in the concrete production industry there is increasing interest in the use of new kind of aggregates due to some of their advantages, such as social acceptance, economic advantage, and sustainability [25].…”

Crystallization Properties of the Glass Ceramics Prepared from Iron-Rich Nickel Slag

“…When heated to 750º C, the needles disappeared and the droplets' diameter increased to 40nm; when the temperature increased to 800º C, the droplets' sizes changed little, but were connected with each other even in aggregation. Based on the previous study, the spherical droplets perhaps were an iron-rich phase while the other was a silicate-rich phase; at the interface, it was much easier to undergo heterogeneous nucleation, provided numerous nucleation positions existed which made it much easier for crystallization to occur [19,20]. The higher the nucleating temperature gets, the more obvious the difference of phase separation for K and NK samples is.…”