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GÓRKAL 70

Application
foto worka górkal 70
  • High content of Al2O3
  • High refractoriness
  • Short setting time
  • High whiteness
  • Chemically pure

GÓRKAL 70 is a binding material for refractory products. The white colour of the product means that high-alumina cement GÓRKAL 70 is also used in mixtures made by the manufacturers of construction chemicals. No additives and modifiers causes that the risk of an unfavourable interaction with other mix components is small.

Do you need a high hydraulic activity? We recommend high-alumina cement GÓRKAL 70F.
Do you want to reduce water demand in the mix? Select GÓRKAL 70A from our offer.

Properties
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Typical chemical composition

  • Al2O3 content 69-71%
  • CaO content 28-30%
  • SiO2 content < 0,5%
  • Fe2O3 content < 0,3%
  • Na2O + K2O content < 0,5%

Special properties

  • Refractoriness ≥158 sP
  • Density3,0 g/cm3
  • Bulk density 1,1 g/cm3
  • Blain fineness 4000-4500 cm2/g

Mineralogical composition

BASIC PHASE:
  • Calcium monoaluminate CA
  • CA2
ACCOMPANYING PHASES
  • Dodecacalcium hepta-aluminate C12A7
  • αA

Hydraulic properties

  • Start of setting ≥ 160 min
  • End of setting ≤ 240 min

Mechanical properties

  • Bending strength > 5 MPa
  • Compressive strength > 30 MPa

Documentation

DATA SHEET

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MATERIAL SAFETY DATA SHEET

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GÓRKAL 70

A binding material for refractory products. The white colour of the product means that it is also used in mixtures made by the manufacturers of construction chemicals.

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