Blast Furnace Slag (Gbfs)

Features Of Granulated Blast Furnace Slag (GBFS)

Granulated Blast Furnace Slag or GBFS is formed when Blast Furnace Slag or BFS is successively at a fast rate quenched from the furnace rather than left for cooling. It has a density of about 60% to 70% that of natural sand. This material has a much increased resistance to sulfate attack.

This eventually leads to better performance in countering acids of any type. In GBFS, no type of reaction related to alkali and silica occurs. Also the material provides a huge saving in connection to carbon dioxide emission which is an extra boon. What constitutes GBFS are its properties that consist of durability, appearance, higher ultimate strength than concrete which is made up of Portland cement and high sustainability level of the product made out of this material.

Moisture - 18.2%
SiO2 - 32.3%
Ai2O3 - 13.6%
Fe - 0.71%
TiO2 - 0.70%
Sulphur - 0.07%
CaO - 40.1%
MnO - 0.59%
MgO - 6.70%

We have supply granulated blast furnace slag, if interest kindly please send an inquiry to us.

We can offer Granulated Blast Furnace Slag from India.
Cao 32 to 41
SiO2 31 -39
Al2 O3 13- 21
MgO 6 - 11
FeO 4
MnO 2
Moisture Avg 12% maz 20%
Glass content 93% max

About THE Product :
Blast furnace slag is used in the production of cement (iron Portland and blast furnace cement).
Air-cooled blast furnace slag is formed by allowing the molten slag to cool relatively slowly under ambient conditions; final cooling can be accelerated with a water spray. The cooled material is hard and dense, although it can have a vesicular texture with closed pores. After crushing and screening, air-cooled slag can be used in several applications.
Granulated slag is formed by quenching molten slag in water to form sand-sized particles of glass. The disordered structure of this glass gives the material moderate hydraulic cementitious properties when very finely ground into granulated blast furnace slag, but if it can access free lime, the granulated blast furnace slag develops strong hydraulic cementitious properties.
Pelletized or expanded slag is cooled through a water jet, which leads to rapid steam generation and the development of innumerable vesicles within the slag. The vesicular texture reduces the overall density of the slag and allows for good mechanical binding with hydraulic cement paste.
Blast Furance Slag is a nonmetallic co-product which is produced in the process of iron manufacturing, Granulated Blast Furnace Slag is a glassy granular material formed when molten blast furnace slag is rapidly cooled by direct water.
Rapid cooling prohibits the formation of crystals and forms glassy, non-metallic, silicates and alumino silicates of calcium.


GBFS : (Granulated Blast Furnace Slag)
Source : Granulated BF Slag From Gujarat State, India
Supply Quantity : 50,000 Metric Tons Per Month
Packing: Bulk

Parameters (% BY MASS)
CaO 30-38
Al2O3 15-20
SiO2 30-40
Glass Content 85-97
MgO 8-11
Fe2O3 0.5-1.5
Moisture 10 MAX
Size -5mm Min 95, +5 mm Max 5
Relative Gravity 2.9
Bulk Density(Bagged) 1200 KG/M3

Granulated Blast Furnace Slag(GBFS)

We are capable to supply granulated blast furnace slag(GBFS) from India on regular basis as per below mentioned speifications

Usage :
This product is used in construction projects as a alternate of river sand
Interested buyers may please contact us with their serious tarde inquiry.


Supply Ability:
50000 Metric Ton/Metric Tons per Month

Packaging & Delivery
Packaging Details
Loose or as required by the buyer
Port Chennai

Blast furnace slag is a nonmetallic coproduct produced in the process. It consists primarily of silicates, aluminosilicates, and calcium-alumina-silicates. The molten slag, which absorbs much of the sulfur from the charge, comprises about 20 percent by mass of iron production. The average chemical composition of the material is the following: CaO 36.50% MgO 7.90% Al2O3 11.70% MnO 1.13 % K2O 0.43 % Na2O 0.22% FeO 1.71 % SiO2 38.73% TiO2 0.69% S 0.86% We have available two different lots of slag GRANULATED BLAST FURNACE SLAG The granulated blast-furnace slag is sand-type slag manufactured by spraying high-pressure water jets on a blast-furnace molten slag.
Origin :- Vietnam . India

Payment Terms :- LC/SBLC

Fly Ash ( Our Product ) & Grade is Class F or Class C

Price of product : To be discussed with the direct international customers.

Product origin : India

Key Specifications/Special Features : ASTM C 618

Minimum Order Size : 500 MT

Packaging details : 1.4 MT or 1.5 MT Jumbo Bags or Break Bulk