Technical Data of Heat – Setting Dry Mortars
| Brand Name | AM 30 | AM 40 | AM 45 | AM 50 | AM 60 | AM 70 |
| Chemical Composition (wt%):- | ||||||
| Silica (SiO2) | 50.0 – 55.0 | 50.0 – 52.0 | 40.0 – 44.0 | 30.0 – 34.0 | 20.0 – 24.0 | 10.0 – 14.0 |
| Alumina (Al2O3) | 30.0 – 35.0 | 38.0 – 40.0 | 48.0 – 52.0 | 58.0 – 62.0 | 68.0 – 72.0 | 78.0 – 82.0 |
| Titania, (TiO2) | 2.6 – 2.8 | 2.6 – 3.0 | 2.0 – 2.2 | 2.1 – 2.3 | 2.4 – 2.6 | 2.6 – 2.8 |
| Iron (Fe2O3) | ≤ 2.0 | ≤ 1.5 | ≤ 1.5 | ≤ 1.6 | ≤ 1.6 | ≤ 1.4 |
| Lime (CaO) | ≤ 0.40 | ≤ 0.35 | ≤ 0.30 | ≤ 0.30 | ≤ 0.25 | ≤ 0.25 |
| Magnesia, (MgO) | ≤ 0.20 | ≤ 0.15 | ≤ 0.10 | ≤ 0.10 | ≤ 0.10 | ≤ 0.10 |
| Alkalies, (Na2O + K2O) | ≤ 0.7 | ≤ 0.6 | ≤ 0.5 | ≤ 0.5 | ≤ 0.4 | ≤ 0.5 |
| Loss on Ignition (L.O.I) | 4.0 – 5.0 | 4.0 – 4.5 | 3.0 – 3.5 | 3.0 – 3.5 | 3.0 – 3.4 | 2.2 – 2.4 |
| Physical & Thermo-Mechanical properties: | ||||||
| Max. service temp. (°C) | 1350 | 1500 | 1600 | 1650 | 1700 | 1750 |
| Refractoriness, (°C) | 1640 | >1730 | >1760 | >1800 | >1800 | >1800 |
| Form, | Dry | Dry | Dry | Dry | Dry | Dry |
| Type of setting | Heat- setting | Heat- setting | Heat- setting | Heat- setting | Heat- setting | Heat- setting |
| Type of bond | Ceramic | Ceramic | Ceramic | Ceramic | Ceramic | Ceramic |
| Grain size distribution (mm), (%) | ||||||
| over 0.3 mm | ˂ 2 | ˂ 2 | ˂ 2 | ˂ 2 | ˂ 2 | ˂ 2 |
| 0.075 – 0.3 mm | ˂ 28 | ˂ 28 | ˂ 28 | ˂ 28 | ˂ 28 | ˂ 28 |
| under 0.075 mm | > 70 | > 70 | > 70 | > 70 | > 70 | > 70 |
| Water required, (%) | 25 – 27 | 25- 27 | 25- 27 | 22 – 25 | 20 – 23 | 20 – 22 |
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