What is the use of granulated blast furnace slag?

What is the use of granulated blast furnace slag?

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.

How is ground granulated blast furnace slag made?

Ground-granulated blast-furnace slag (GGBS or GGBFS) is obtained by quenching molten iron slag (a by-product of iron and steel-making) from a blast furnace in water or steam, to produce a glassy, granular product that is then dried and ground into a fine powder.

Is code for ground granulated blast furnace slag?

“Licence is granted to use Standard Mark on Ground Granulated Blast Furnace Slag for Use in Cement , Mortar and Concrete as per IS 16714 : 2018.

What is blast furnace slag aggregate?

Overview. Blast furnace slag is a secondary aggregate used widely in construction because of its performance attributes and durability. The principle constituents of blast furnace slag are silica, alumina, calcium and magnesia (reported as oxides), which comprise 95% of slag’s total makeup.

What percentage of GGB is concrete?

GGBS proportions A typical combination is 50% GGBS with 50% CEM I, but percentages of GGBS anywhere between 20 and 80% are commonly used. The greater the percentage of GGBS, the greater will be the effect on concrete properties.

What is the difference between Ggbs and fly ash?

There is a wide variation in the chemical properties of fly ash and GGBS. Fly ash is low in calcium oxide content but rich in silica and alumina while GGBS is relatively high in calcium oxide. The combination of these two materials can be more beneficial when used as a stabilizing agent than using them individually.

How much does slag cost?

In unground form, granulated slag sells for about $35 per ton and sells for about twice that amount as GGBFS (table 2). This is in contrast to a range of about $3 to $14 per ton for air-cooled slag; the prices are necessarily low to allow the material to compete with natural aggregates.

Is code of Portland slag cement?

Portland slag Cement (IS: 455)

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.

What is the effect of Ggbs in concrete?

Replacing Portland cement CEM I with GGBS reduces the temperature rise and helps to avoid early-age thermal cracking. The higher the percentage of GGBS, the lower the rate of reaction and consequently the slower the rate at which heat is developed.

What can blast furnace waste slag be used for?

In general, it is used to produce Pig iron from its ore. It is used in process plants. The slag of the blast furnace has hydraulic properties which are used in cement as a additives Slag also helps in soil stabilization.

What is the abbreviation for blast furnace slag?

GBFS stands for Granulated Blast Furnace Slag. Abbreviation is mostly used in categories:Slag Furnace Blast Cement Product

What is blast furnace slag?

Blast furnace slag (BFS, see Wikipedia ground granulated blast-furnace slag) is a nonmetallic byproduct of the manufacture of pig iron in a blast furnace. BFS consists primarily of silicates, aluminosilicates, and calcium-alumina-silicates.

What is blast furnace gas?

Blast furnace gas (BFG) is a by-product of blast furnaces that is generated when the iron ore is reduced with coke to metallic iron.