Co-R (Concrete additive)
Made from granulated blast-furnace slag (GGBS or GBFS) and known as material for Slag Cement.
Obtained from quenching molten slag (of nickel, copper, iron and steel- making) from a blast furnace into water system, which produce a glassy, granular product then further dried and ground into a fine powder.
We have Co-R grounding capacity of 360,000 tons per annum and ready for distribution for domestic market, delivery by 30 or 32 tons Hi-Blow Truck.
|Calcium Oxide (CaO)||20 – 30|
|Silicon Dioxide (SiO2)||35 – 45|
|Aluminium Oxide (Al2O3)||5 – 8|
|Iron (III) Oxide (Fe2O3)||Max 3.4|
|Magnesium Oxide (MgO)||16 – 22|
|Specific Gravity||2.8 – 2.9|
|Fineness, Blaine number||> 400 m2/kg|
|Moisture Content||< 1 %|
Co-R used as concrete additive in various product: Percentage (%)
- Ready mix (K 300) up to 30%
- Concrete product (K500) up to 20%
- Plester & Acian up to 30%
Advantages of mixing with Co-R:
- Improve sulfate resistance
- Improve pore refinement
- Reduce permeability
- Improve long-term strength
- Less heat generated during hydration