GGBFS A Gr

Ground Granulated Blast furnace Slag (GGBFS) is made by quenching molten blast furnace slag (a by product of iron and steel making) in water to produce a glassy granular product that is then dried and ground into a fine powder GGBFS. It consists mainly of calcium and aluminum silicates and has a chemical composition similar to these respective natural minerals and to hydrated Portland cement. GGBFS is typically finer than Type 1 Portland cement. It is an off-white color powder with a specific gravity of about 2.88 and is handled and dispersed like Portland cement.

Ground Granulated Blast Furnace Slag

Ground Granulated Blast furnace Slag (GGBFS) is made by quenching molten blast furnace slag (a by product of iron and steel making) in water to produce a glassy granular product that is then dried and ground into a fine powder GGBFS. It consists mainly of calcium and aluminum silicates and has a chemical composition similar to these respective natural minerals and to hydrated Portland cement. GGBFS is typically finer than Type 1 Portland cement. It is an off-white color powder with a specific gravity of about 2.88 and is handled and dispersed like Portland cement.

A. Physical properties & strength:

1. Fineness-blaine = 420(min.)

2. Initial setting time = 45 minutes (min.) 3.Soundness,

le-chatelier expansion = 10.00 mm (max.)

3. Mortar compressive strength, 28 days= 52.5 mpa

B. Chemical composition:

1. Magnesia (mgo) = 14% (max.)

2. Sulphur (s) = 1.5% (max.)

3. Sulphate (so3) = 4.0% (max.)

4. Loss on ignition (loi) = 3.0% (max.)

5. Chloride ion content = 0.02% (max.)

6. Chemical modulus Cao+mgo+sio2 = 67% (min.) (cao+mgo)/sio2 = 1.0 (min.) Cao/sio2 = 1.4 (max.)

7. Moisture content = 1.0% (max.) C.Glass content = 95% (min.)

In bulk or 1.5-2mt jumbo bags