Heat – Setting Dry Mortars

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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