PRODUCT DESCRIPTION
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
TECHNICAL SPECIFICATIONS
| CODE | CHEMICAL COMPOSITION | GUARANTEED PARAMETERS |
|---|---|---|
| 1 | CaO (%) | 38 Min. |
| 2 | SiO2(%) | 36 Max |
| 3 | Al2O3 (%) | 16 Max |
| 4 | MnO (%) | 1.5 Max |
| 5 | MgO (%) | 12 Max |
| 6 | Fe2O3 (%) | 1.5 Max |
| 7 | Glass (%) | 95 Min. |
| 8 | Moisture (%) | 10 Max |
| 9 | S(sulfur) (%) | 1.5 Max |
| 10 | CI | 0.1 Min. |
| 11 | LOI (%) | 1 Max |
| TESTING REPORT FOR GGBS | |||
|---|---|---|---|
| Date | 14TH, JULY,2023 | ||
| Series No. | HM230199 | Gr | S95 |
| Date of Production | 2023/6/16 | Qty represent | 2000 T |
| Item | Technical Index | Testing Result | Judgement |
| Specific Gravity (g/cm3) | ≥2.8 | 2.91 | Passed |
| Fineness(Blaine), m2/kg | ≥400 | 436 | Passed |
| Strength Activity index %(7 days) | ≥70 | 81 | Passed |
| Strength Activity index %(28 days) | ≥95 | 104 | Passed |
| Rate of Mobility % | ≥95 | 102 | Passed |
| Initial setting time ratio % | ≤200 | 116 | Passed |
| Insoluble matter % | ≤3.0 | 1.0 | Passed |
| Moisture Content % | ≤1.0 | 0.1 | Passed |
| Sulfate Iron In Slag SO3, % | ≤4.0 | 0.21 | Passed |
| Chloride Content (Cl-), % | ≤0.06 | 0.01 | Passed |
| Loss on ignition, % | ≤1.0 | 0.12 | Passed |
| Judgement | Comply With GB/T18046-2017 std for GGBS request | ||
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