Oxidation of Sulfur in B. F. Slags to Sulfate

The Conditions of Ettringite Formation by the Reaction of a Blast Furnace Slag with Aqueous Alkaline Solutions

“…With respect to the elution of components and formation of compounds from blast furnace slags, many studies have been performed since the latter half of the 1970s, mainly on the elution of sulfur and formation of sulfur compounds, and significant knowledge has been obtained on the generation of yellow water, vitriolization, behavior of sulfur, and morphological properties. [2][3][4][5][6][7] One of the important problems in the formation of compounds is related to ettringite. Ettringite is a needle-like crystal that is represented as 3CaO·Al 2 Blast furnace (BF) slags have been utilized in cement, concrete aggregate, roadbed materials, and earthwork materials.…”

“…[2][3][4][5][6][7] One of the important problems in the formation of compounds is related to ettringite. Ettringite is a needle-like crystal that is represented as 3CaO·Al 2 Blast furnace (BF) slags have been utilized in cement, concrete aggregate, roadbed materials, and earthwork materials. If an appropriate control of the elution and compound formation is developed under severer environmental conditions, their usage would be more diverse.…”