GGBS (Ground Granulated Blastfurnace Slag)

Product Introduction:

GGBS (Ground Granulated Blastfurnace Slag) is provided by Tianjin Fujing Co., Ltd,a major Cement & Sand supplier in Construction & Real Estate wholesale industry in China.You can check out the specification of GGBS (Ground Granulated Blastfurnace Slag) below or get any optional result clicking into the following keywords cement , GGBS (Ground Granulated Blastfurnace Slag) , BS 6699: 1992 , Description , Features , Details and you can check the authentications and testimonials of GGBS (Ground Granulated Blastfurnace Slag) .

Description:
We currently act as agent for this product, we have several factories as our strong backup, we can supply GGBS all the year round, please contact us or simply leave a message here, if any need be. The description and specification of this product as follow:

1. Description:
The secret of reducing the cost of Concrete--Ground Granulated Blast furnace Slag(GGBS), a co-product produced simultaneously with iron, molten blast furnace slag is cooled instantaneously by quenching in large volumes of cold water, known as granulation, to produce Granulated Blast furnace Slag. This process produces a glassy, homogeneous, non-crystalline material that has cementitious properties. The three major chemical components are CaO, SiO2, and Al2 O3 and make up 95％ of the slag.
GGBS is cementitious material that can be used to make durable concrete either in combination with Ordinary Portland Cement(OPC) or as a separate constituent where the percentage used is selected to optimize concrete performance for particular applications.
In China and worldwide, the application of GGBS came into the limelight only in the past few years, However, due to the tremendous potential in GGBS, its economic benefits, and its improvements to concrete durability, the use of it has gained significant speed and momentum.

2. Specification:
A. Physical Properties and Strength:
Test Items BS 6699:1992 Requirement Our Test Results
Fineness-Blaine Min.275m2/kg 450
Initial Setting Time, Vicat, Minutes Not Less than Portland cement 192
Soundness-Le Chatelier, Expansion Max:10.0mm 0
Mortar Compressive Strength, at:
3 days -- 11.8
7 days Min.12.0 N/mm2 29.1
28 days Min.32.5 N/mm2 52.0

B. Chemical Composition:
Test Items BS 6699:1992 Requirements Our test Results
1. Insoluble Residue Max.1.5％ 0.13
2. Magnesia (MgO) Max.14％ 9.80
3. Sulphur (S2-) Max.2.0％ 0.04
4. Sulphate (SO3) Max.2.5％ 0.05
5. Loss on Ignition Max.3.0％ 0.36
6. Manganese (Mn2O3) Max.2.0％ 0.70
7. Chloride Ion Content (Cl-) Max.0.10％ 0.035
8. Chemical Modulus
CaO+MgO+SiO2 Min.67 82.41
(CaO+MgO)/(SiO2) Min.1.0 1.43
(CaO)/(SiO2) Max.1.4 1.14
9. Moisture Content Max.1.0％ 0.21