RR Mortar-90
RR Mortar is a highly refractory mortar capable to withstand tempratures up to 1750c and is marketed in powder from packed in HDPE begs.
It also possesses air -setting properties.
It also has good bonding strength on heat application during firing RR mortar Coalesces with the brick surface in the joints and becomes very firm.
Water content does not exceed 35% continue mixing mortar for 15-20 minutes for proper consistency.
- Specification
| Description | Units | RR Mortar 50 | RR Mortar 70 | RR Mortar 90 |
|---|---|---|---|---|
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| Services temp. | °C | 1450 | 1550 | 1650 |
| PCE Orton code @1700C | °C | 33/1700 | 34/1750 | 36/1800 |
| Setting | 5 Air | Air | Air | |
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| Alumina(AL203) | % | 50% | 70% | 90% |
| Ferric(max) | % | 3-4 | 2-3 | 1-2 |
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| Grain Size | mm | 0-0.5/fines | 0-0.5/fines | 0-0.5/fines |
| Water Requirement | % | 20-25 | 20-25 | 20-25 |