What is the specific gravity of slag?
What is the specific gravity of slag?
2.85 to 2.94
The specific gravity of slag cement ranges from 2.85 to 2.94, depending on the slag source, as compared to 3.15 for portland cement. The difference in specific gravity means a greater volume of slag cement will be used to replace the same mass of portland cement.
What is the density of steel slag?
about 3.1~3.6g/cm3
The bulk density of steel slag is about 3.1~3.6g/cm3, with water content of 3%~8%, and it has good compression resistance.
What is the density of slag?
The density of synthetic coal slag is in the range of 2.4 g/cm3 ± 10% for the temperature range of 1200–1600 °C, in both oxidizing and reducing conditions.
Is 455 a grade of cement?
It is manufactured either by intimately intergrinding a mixture of Portland cement clinker and granulated slag with addition of gypsum or calcium sulphate, or by an intimate and uniform blending of Portland cement and finely ground granulated slag.
Is density of molten metal greater than density of slag?
In blast furnace, products are collected at bottom. So, molten metal should be at bottom and slag floats above. So, slag should have low density as compared to molten metal.
What is slag in chemistry?
Slag is the silicon dioxide and metal oxide mixture left over as a by-product of extracting metal from its ore during the smelting process. Slag consists of the undesired impurities in the metal ore extracted during the smelting process.
What is main content of slag?
The primary components of iron and steel slag are limestone (CaO) and silica (SiO2). Other components of blast furnace slag include alumina (Alsub>2O3) and magnesium oxide (MgO), as well as a small amount of sulfur (S), while steelmaking slag contains iron oxide (FeO) and magnesium oxide (MgO).
What is the density of pig iron?
7.86 g/cm3
Base metal extracted mainly from iron ore but also from ilmenite (EAF smelting by-product); pure iron melting point 1530° C, density 7.86 g/cm3.
What is blast furnace slag used for?
Granulated blast furnace slag has been used as a raw material for cement production and as an aggregate and insulating material. and granulated slag have also been used as sand blasting shot materials.
What is meant by steel slag?
Steel slag, a by-product of steel making, is produced during the separation of the molten steel from impurities in steel-making furnaces. The slag occurs as a molten liquid melt and is a complex solution of silicates and oxides that solidifies upon cooling. The open hearth furnace process is no longer used.
Is PSC a code?
: 455
IS: 455 – specifications for PSC (Portland slag cement).
What is the chemical composition of steel slag?
7.1.2 Types and classification of steel slags Chemical composition Chemical composition Chemical composition CaO SiO 2 Al 2 O 3 MgO MnO Blast furnace ABS a 30–45 30–40 0–1 Blast furnace GBS a 30–45 30–40 0–1 Basic oxygen furnace BOFS b 30–50 10–15 10–30
What is the specific gravity of granular blast furnace slag?
Granular blast furnace slag. BOFS, see Fig. 7.3, present a high content of Fe, so its specific gravity is above 3 g/cm 3. This type of slag is cooled slowly to cause the crystallisation and stabilisation of its components.
What kind of material can a slag processor handle?
Slag processors may handle a variety of materials such as steel slag, ladle slag, pit slag, and used refractory material to recover steel metallics. These materials must be source separated, and well-defined handling practices must be in place to avoid contamination of the steel slag aggregate.
How much steel slag is used each year?
It is estimated that between 7.0 and 7.5 million metric tons (7.7 to 8.3 million tons) of steel slag is used each year in the United States. The primary applications for steel slag in the United States are its use as a granular base or as an aggregate material in construction applications.
