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Limestone & Slag


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Limestone is a byproduct of the nickel-iron ore mining and is suitable for use in the production of cement, as aggregate in concrete or in construction works (roads, ports, etc.).

Renelux supplies the cement industries with high quality Limestone with Magnesium (MgO) below 0.7% on term or spot basis.


Ferronickel Furnace Slag

Ferronickel slag, a non-hazardous waste obtained from reductive smelting of laterite ore in electric arc furnace, a glassy material, is used as mineral admixture up to 20 wt% for the production of blended cements. The slag containing cement exhibits relatively lower water demand and longer setting times than the simple cement. Furthermore, the admixture addition improves mortar workability.

Renelux supplies the cement industries with Ferronickel production's electric arc Furnace Slag on term or spot basis.


Renelux delivers Limestone and Ferronickel Furnace Slag in terms FOB or CFR/CIF to any safe destination in the world, as per Incoterms 2010.

The cargo inspections are undertaken by qualified international Surveyors.  



Laboratory Tests  
ASTM C131-1996 26 - 28
ASTM C88-1990 1.4 - 7.3
AASHTO T-176/2000 69-80
ELOT 408 49 - 70.4
Chemical Analysis  
CaCO3 95 - 97%
Fe2O3 0.4 - 1.4%
SiO2 0.8 - 1.9%
Al2O3 0.3 - 0.8%
MgO 0.3 - 0.7%
Cr2O3 0.01 - 0.08%


Ferronickel Furnace Slag

Chemical analysis results

Elements: Concentration (%):
SiO2 41.18
Al2O3 6.00
Fe2O3 40.02
CaO 4.12
MgO 7.79
K2O 0.37
Na2O 0.09
TiO2 0.12
P2O5 0.04
Mn2O3 0.77
Cr2O3 2.75
BaO 0.01
Cl 0.01
NiO 0.31
LOI -3.44





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