Metakaolin
METAKAOLIN KM 60 is a product created from the natural raw material kaolinite by leaching, calcination at temperatures above 500 °C and subsequent grinding. It is a transitional, metastable phase. Unlike the mineral kaolinite, metakaolin is characterized by a slightly pronounced crystalline structure similar to kaolinite - it is more amorphous in nature and there is also partial compaction caused by dehydration of the original material.
- It is used as an additive to refractory materials, concretes and mortars, as a filler for rubber and plastics and for other applications.
- In concrete applications, it partially replaces cement. It increases the mechanical strength of finished products by up to 20%. It improves resistance to chemical and thermal effects, or to pressure water seepage and thus the overall service life of concrete products.
Packaging and shipping
- Supplied in big bags with PE liner (approx. 1 ton), in paper bags of 25 kg (30 pcs per pallet), in silo trucks.
- The packaging must be hermetically sealed due to the absorption of water and water vapor into the material.
- Shelf life - in a dry environment with a recommended use-by date of 1 year from the date of production.
Technical informative parameters
| Product | Annealing loss 1100˚C (%) |
Mass activity Index I | Whiteness (R 457) |
Screen residue 0,063 mm (%) | Screen residue 0,040 mm (%) |
Bulk density (kg/m3) |
Density - specific gravity (kg/m3) |
| Metakaolin KM 60 |
max. 3,5 | max. 1 | min. 70 | max. 8 | max. 10 | 550 - 750 | 2500 - 2800 |
Chemical analysis - informative values
| Product | SiO2 (%) |
Al2O3 (%) |
Fe2O3 (%) |
TiO2 (%) |
CaO (%) |
MgO (%) |
K2O + Na2O (%) |
| Metakaolin KM 60 |
50 - 55 | min. 40 | max. 1,45 | max. 0,80 | 0,05 - 0,50 | 0,20 - 0,45 | max. 1,50 |
Distribution of corn - Sedigraph
| Product | under 20 μm (%) |
under 10 μm (%) |
under 5 μm (%) |
under 2 μm (%) |
| Metakaolin KM 60 |
min. 75 | min. 60 % | min. 40 % | min. 15 % |
* Sales within the Czech and Slovak Republics are provided by a contractual distributor EKONRAD s.r.o.:
www.metasil.cz
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