Applications of Blast Furnace Slag

There are numerous applications and uses for slag such as:

Enables the creation of stronger concrete
Produces concrete with a lower permeability, making it suited for piles and marine constructions that are susceptible to chloride and sulphate attacks.
Because it produces concrete with a lower hydration temperature, it is a viable option for large-scale structures (mass concrete) like dams.
Excellent option for retaining walls, tunnels, and other constructions that need to retain water or earth.
Slag is preferred by concrete manufacturers because it is less expensive than ordinary cement.

Panels made with using slag

Benefits and Advantages of Blast Furnace Slag

The initial strength achieved is less than the conventional concrete, but the superior ultimate strength attained is equivalent and sometimes higher than conventional concrete.
Because the slag is finely powdered, it has the potential to effectively fill the pores, has a high degree of workability, and exhibits less bleeding.
It is resilient to attacks from sulphate and chloride, and there is even less chance of an alkali-silica reaction with aggregates.
The slump retention and initial setting time are longer as a result of the intentional hydration procedure.
Due to fineness, there is more strength and less penetrability.
Due to the white color of GGBFS, the cement color obtained is brighter colored when compared to conventional cement.
The production cost of this cement is less than the Ordinary Portland Cement (OPC).

Channel made with slag

Limitation and Disadvantages of Blast Furnace Slag 

Some types of slag has a slow rate of early strength gain, which makes these types unsuitable for saturations where high early strength is required such as repair works.

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