Devitrification hardening of cupola slag glass with CaO and SiO2 additions

Waste Upcycling in Construction: Geopolymer Bricks at the Vanguard of Polymer Waste Renaissance

“…Its ability to harden at room temperature and its high strength and durability make it ideal for use in harsh environments, and its potential for use in various applications makes it a versatile material for the construction industry [10]. The use of rice husk ash as a raw material in particular is a sustainable approach towards the utilization of waste materials in the production of geopolymer concrete, which can help to reduce the carbon footprint of the concrete and make it more cost-effective [17][18][19][20][21][22][23].…”

“…The microscopic analysis of Rice husk Ash (RHA) is an essential step in understanding its properties and behavior when used in geopolymer concrete. The analysis helps to determine the particle size distribution, shape, and surface area of the RHA, which can affect the performance of the geopolymer concrete [21]. A variety of techniques can be employed for the analysis, including scanning electron microscopy (SEM), transmission electron microscopy (TEM), and energy-dispersive X-ray spectroscopy (EDS).…”

Incorporation of calcium in glasses: A key to understand the vitrification of sewage sludge

“…Other interesting properties of glass-ceramics regarding their stability are the lack of porosity and high strength and toughness [18]. Ca-rich wastes are good candidates for vitrification and subsequent glass-ceramic processing -in products such as Sital slag from the steel and copper industries of Russia [20], cupola slag blast [21], blast furnace slag [22], tin tailings [23], molybdenum tailings [24], and tungsten tailings [25,26].…”

“…53,54 Other interesting properties of glass-ceramics are their chemical stability, lack of porosity, and high strength and toughness. 55 Ca-rich wastes are good candidates for vitrification and subsequent glass-ceramic processing as seen in products such as Sital slag, 56 cupola slag blast, 57 blast furnace slag, 58 tin tailings, 59 molybdenum tailings, 60 and tungsten tailings. 61,62 The objective of this study is to simulate the vitrification of a sewage sludge and basalt mixture using Ca-enriched basalts.…”

Utilization of ladle slag for soil stabilization

“…CaMg(CO3)2 comes from fluxing agents that are used to remove unwanted elements (Satyoko et al 2003;Yildirim and Prezzi 2015). CaMg(SiO3)2 is formed from the reaction of the MgO-CaO-SiO2 system when the temperature is higher than 950℃ (Agarwal and Speyer 1991).…”