Typical application
ERMOLD 300 is dedicated to bottom sub-paving application. Superior resistance to glass corrosion compared to fire-clay or sillimanite materials.
Standard thickness: 150mm and 100mm
Standard sizes: 1000x500mm and 600x500mm.
For application in superstructure, refer to ERMOLD.
Chemical and physical properties
Microstructure
Image
Typical chemical composition
Typical crystallographic analysis
Main phase:
- corundum
- monoclinic zirconia
Physical characteristics
| Description | International standards | British standards |
|---|---|---|
| Refractoriness under load of 2 105 Pa, at 0.5% |
1,220°C | 2,228°F |
| Cold crushing strength | 50Mpa | 7,252psi |
| Linear thermal expansion | negligible | - |
| Thermal conductivity at 1,000°C | 2.2 W.m-1.K-1 |
15.3 BTU |
| Apparent porosity | 13% | 13% |
| Typical bulk density | 3.2g/cm3 | 200pcf |
Storage
The bonded alumina-zirconia-silica (AZS) with 30% zirconia, ERMOLD 300 solution must be stored in a dry environment protected from weather conditions.