The relative density (specific gravity) for ground granulated blast- furnace slag is in the range of
2.85 to 2.95
. The bulk density varies from 1050 to 1375 kg/m3 (66 to 86 lb/ft3).
Is slag denser than iron?
The liquid slag is
less dense than iron
and so it floats on top of the molten iron at the bottom of the furnace. … The slag can be used to make bi-products such as cement.
What is the density of slag cement?
The regulated density of slag cement is usually
2.8 ~ 3.1 g/cm
3
and the bulk density is about 1000 ~ 1200 kg/m
3
.
What is the specific gravity of slag?
Specific Gravity: Due to the relatively high specific gravity
(3.2-3.6)
of steel slag, steel slag aggregate can be expected to yield a higher density product compared with conventional mixes (2.5-2.7).
What is the hardness of slag?
Even relative to the hardest minerals, steel slag is a hard material, which makes it very durable. The international standard measurement for hardness is the mohs hardness scale. Steel Slag has a mohs hardness value
of 6
.
What is slag formula?
The lead oxides are reduced by carbon forming CO and CO
2
gases. To form slag, soda ash (Na
2
CO
2
) is added. The slag can generally be expressed by the formula
FeSNa
2
S(O)
.
What is the main use of slag?
Due to its positive technical characteristics, LD slag is used all over the world in road and railway construction and for engineering. The most common use is as
an aggregate in the manufacture of asphalt
. It is also successfully used as an aggregate for concrete.
What is density of fly ash?
The bulk density of fly ash from different sources without any classified is quite different, most of which are
between 1.9-2.9g /cm3
. Due to the different composition and structure of fly ash particles, bulk density among each particle is also different.
What is slag used in cement?
Slag cement is
a hydraulic cement formed when granulated blast furnace slag (GGBFS)
is ground to suitable fineness and is used to replace a portion of portland cement. … Once the slag has been cooled and ground to a usable fineness it is stored and shipped to suppliers throughout the United States.
Which slag is used in cement industry?
Steel-slag can be used to produce energy-saving cement by co-grinding with
OPC clinker and blastfurnace slag
. In such preparations OPC clinker is about 15-30%, steel-slag around 30-40% and blastfurnace slag is around 40-50%.
What is the specific gravity of fly ash?
The specific gravity of fly ash usually ranges from
2.1 to 3.0
, while its specific surface area (measured by the Blaine air permeability method)
( 6 )
may range from 170 to 1000 m
2
/kg. The color of fly ash can vary from tan to gray to black, depending on the amount of unburned carbon in the ash.
What is slag in steel making?
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
. … MgO or “dolime”), are charged to a converter (furnace).
Is slag denser than molten metal?
This material has
a lower density than the molten metal
and will float to the top of the melt where it can be run off removing the SiO
2
contamination. This calcium silicate reaction product is known as Slag. … The black regions are slag fibers that have been oriented during the manufacturing process.
Is all slag magnetic?
Slag is a byproduct of reducing ore to metal.
Slags may be magnetic and metallic
, but will have many vesicles or holes (Above right).
What is slag example?
Slag is waste matter separated from metal during smelting. An example of slag is the
iron and silica that is removed during copper and lead smelting
. … An example of to slag is for the heat of copper smelting to remove the iron and silica from the copper.
Can you pour concrete over steel slag?
Steel slag is not recommended for use in rigid confined applications
– such as concrete aggregate, base or fill under structures or floor slabs, or backfill against structures or bridge abutments. Shape and Texture: Steel slag is a crushed product having hard, dense, angular and roughly cubical particles.