Table of Contents
- 1 What is the main use of slag?
- 2 What are two uses of slag?
- 3 What is blast furnace slag cement?
- 4 What is the advantage of making products from blast furnace slag?
- 5 Which cement is used in furnace?
- 6 What is difference between PSC and PPC cement?
- 7 What fuel is used in a blast furnace?
- 8 What can blast furnace waste slag be used for?
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 are two uses of slag?
Primary characteristics and applications of iron and steel slag
| Applications | ||
|---|---|---|
| Steelmaking slag | Converter slag, electric arc furnace slag | Aggregate for asphalt concrete |
| Base course material | ||
| Material for civil engineering works, ground improvement material (Material for sand compaction piles) | ||
| Raw material for cement clinker |
What is the advantage of slag cement?
Slag concretes have improved long-term strengths even though their early strength development is lower than portland cement concretes. They also have lower permeability and improved durability. Slag cement generally costs less than portland cement.
Why slag is used in concrete?
The use of slag in concrete has several benefits, including reduced energy, reduced greenhouse gas emissions, and reduced use of raw materials. – Granulated blast-furnace slag (GBFS)—The glassy granular material formed when molten blast-furnace slag is rapidly chilled, as by immersion in water. …
What is blast furnace slag 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. It is a recovered industrial by-product of an iron blast furnace.
What is the advantage of making products from blast furnace slag?
Advantages of Blast-Furnace Slag Cement As the slag is finely grounded, it has the valence to fill the pores efficiently, workability is high and bleeding is low. It has good persistence towards sulfate and chloride assault and even less risk of alkali-silica response with aggregates.
What is steel furnace 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. MgO or “dolime”), are charged to a converter (furnace).
Where is slag cement used?
Slag cement is used in virtually all concrete applications:
- Concrete pavements.
- Structures and foundations.
- Mass concrete applications, such as dams or retaining walls (SCIC #9, “Reducing Thermal Stress in Mass Concrete”)
Which cement is used in furnace?
Fire Clay Cement, 50 Kg, For Furnace
| Packaging Size | 50 Kg |
|---|---|
| Application | Furnace |
| Color | Grey |
| Brand | Jainco |
| Material | Alumina Cement |
What is difference between PSC and PPC cement?
PSC stands for Portland Slag Cement and PPC stands for Portland pozzolanic cement. Slag in PSC, is a non-metallic substance which comprises of 90\% glass with aluminosilicates of lime and silicates. Whereas, PPC have pozzolanic as its main ingredient but it should be used in certain proportion.
What is the blast furnace slag cement?
Portland blast-furnace slag cement is a mixture of ordinary Portland cement and not more than 65 wt. \% of granulated slag. Nataraja and Nalanda (2008) investigated a variety of slag, fly ash, and cement dust in the performance of industrial by-products in controlled low-strength materials.
What is slag cement disadvantages?
Disadvantages of Blast-Furnace Slag Cement Early Strength is low; therefore, it cannot be used in Reinforced Cement Concrete (RCC) works. As the initial setting time is high, this cement is not used for emergency or repair works.
What fuel is used in a blast furnace?
Blast furnace gas. The rest is mostly carbon monoxide, which has a fairly low heating value already and some (2-4\%) hydrogen. It is commonly used as a fuel within the steel works, but it can be used in boilers and power plants equipped to burn it. It may be combined with natural gas or coke oven gas before combustion or a flame support…
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 blast furnace process?
Blast furnace, a vertical shaft furnace that produces liquid metals by the reaction of a flow of air introduced under pressure into the bottom of the furnace with a mixture of metallic ore, coke, and flux fed into the top.
What does blast Furnance mean?
Definition of blast furnace. : a furnace in which combustion is forced by a current of air under pressure; especially : one for the reduction of iron ore.