| Name of mixture | Core component | Chemical composition, % | Density after firing at 800˚C, g/cm3 | Compressive strength, N/mm2 | Thermal conductivity at an average temperature of 500˚C, W/m*K | Application temperature, ˚C | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Al2O3 | SiO2 | Fe2O3 | CaO | after drying at 110˚C | after firing at 800˚C | |||||
| Alicast 37/4 | fireclay | 38 | 53 | 2.5 | 4 | 2.1 | 60 | 80 | 1.2 | 1250 |
| Alicast 37/2.5 | fireclay | 42 | 51 | 2.2 | 2.5 | 2.15 | 80 | 110 | 1.1 | 1400 |
| Alkorit 37/1.5 | fireclay | 43 | 50 | 1.5 | 1.5 | 2.2 | 60 | 70 | 1.2 | 1500 |
| Alicast 37/6 | fireclay | 41 | 49 | 1.7 | 6 | 2 | 60 | 80 | 0.9 | 1300 |
| Alicast 50/2.3 | fireclay | 50 | 45 | 1 | 2.3 | 2.3 | 100 | 120 | 1.3 | 1500 |
| Alicast 50/2.3L | fireclay | 49 | 45 | 1.9 | 2.3 | 2 | 50 | 70 | 1.1 | 1500 |
| Alkorit 53/1.5 | fireclay | 57 | 39 | 0.9 | 1.5 | 2.2 | 40 | 60 | 1.3 | 1550 |
| Alkorit 57/1.5 | fireclay | 59 | 37 | 0.8 | 1.5 | 2.3 | 40 | 70 | 1.4 | 1650 |
| Alifest 50/0.6 | fireclay | 52 | 44 | 1.2 | 0.6 | 2.35 | 60 | 80 | 1.6 | 1650 |
| Alkorit 63/1.5 | fireclay | 64 | 32 | 0.7 | 1.5 | 2.3 | 50 | 80 | 1.4 | 1600 |
| Alicast 60/2.3 | andalusite | 59 | 37 | 1 | 2.3 | 2.5 | 80 | 120 | 1.7 | 1500 |
| Alkorit 60/1.5 | andalusite | 63 | 34 | 0.8 | 1.5 | 2.6 | 40 | 60 | 1.7 | 1600 |
| Alicast 65/2.1 | mullite | 71 | 23 | 1 | 2.1 | 2.5 | 80 | 120 | 1.7 | 1550 |
| Alkorit 69/1.5 | mullite | 70 | 25 | 0.9 | 1.5 | 2.5 | 50 | 80 | 1.7 | 1650 |
| Alicast 70-40/1.5 | bauxite | 65 | 29 | 2 | 1.5 | 2.5 | 60 | 80 | 1.8 | 1450 |
| Alicast 70/2.5 | bauxite | 71 | 22 | 2.2 | 2.5 | 2.55 | 90 | 120 | 1.9 | 1500 |
| Alicast 70/2.5HT | bauxite | 69 | 25 | 1.7 | 2.5 | 2.5 | 80 | 100 | 1.8 | 1600 |
| Alicast 80/2.5 | bauxite | 76 | 15 | 1.5 | 2.5 | 2.6 | 100 | 150 | 2.1 | 1550 |
| Alicast 80/2.5AR | bauxite | 81 | 13 | 1 | 2.3 | 2.85 | 130 | 170 | 2.1 | 1450 |
| Alicast 80/2.5NT | bauxite | 79 | 16 | 1 | 2.2 | 2.8 | 120 | 160 | 2.2 | 1650 |
| Alkorit 80/1.0HT | bauxite, andalusite | 83 | 13 | 1 | 1 | 2.8 | 50 | 70 | 2.2 | 1700 |
| Alkorit 80/1.5 | bauxite | 87 | 8 | 1 | 1.5 | 2.85 | 80 | 120 | 2.2 | 1550 |
| Alifest 85/0 | bauxite | 87 | 9 | 1 | 0.2 | 2.9 | 15 | 40 | 2.1 | 1700 |
| Alifest 85/0.6 | bauxite | 86 | 9 | 1 | 0.6 | 2.95 | 70 | 120 | 2.3 | 1700 |
| Alifest 85/1.5 | bauxite | 85 | 10 | 1 | 1.5 | 3.0 | 150 | 180 | 2.9 | 1500 |
| Alit 83 | corundum | 89 | 7 | 0.3 | 2.5 | 2.95 | 120 | 160 | 2.8 | 1400 |
| Alit 83NT | corundum | 84 | 11 | 0.5 | 2.3 | 2.9 | 100 | 140 | 2.7 | 1600 |
| Alkorit 98 | corundum | 98 | 0.1 | 0.1 | 1.5 | 3.05 | 50 | 60 | 3 | 1750 |
| Alifest 98 | tabular alumina | 98 | 0.1 | 0.1 | 1.5 | 3.1 | 80 | 120 | 3.1 | 1750 |
| Alcorit 99 | tabular alumina | 99 | 0.1 | 0.1 | 0.7 | 3.1 | 30 | 50 | 3.1 | 1750 |
| These values may vary depending on the characteristics of the raw materials and are not guaranteed. | |
|---|---|
| ALICAST 37/4 ALICAST 37/2.5 ALICAST 37/1.5 ALICAST 37/6 ALICAST 50/2.3 ALICAST 50/2.3L ALCORIT 53/1.5 ALCORIT 57/1.5 ALCORIT 63/1,5 |
Deflocculated concrete based on chamotte of different density and chemical composition. ALIKAST 37/4 is the most economical high-strength deflocculated fireclay concrete with application temperatures up to 1250°C. ALIKAST 37/2.5, ALIKAST 50/2.3 are the most popular low-cement fireclay concretes with a very wide range of applications due to their high strength and fire resistance. ALIKAST 50/2,3 is produced in two versions – basic and lightweight ALIKAST 50/2,3L with reduced density and thermal conductivity. ALIKAST 37/6 is a deflocculated, high cement content concrete with a unique combination of very high abrasion resistance (less than 10 cm3 according to ASTM C704) and low thermal conductivity, making it suitable for single layer abrasion resistant thermal insulation linings. ALCORIT 37/1,5, ALCORIT 53/1,5, ALCORIT 57/1,5, ALCORIT 63/1,5 are low-cement fireclay concretes with high fire resistance. Their distinguishing features: ALCORIT 37/1,5 – resistance to alkaline attack due to specially selected composition of fine matrix and dense structure; ALCORIT 57/1,5 – high refractoriness and absence of high-temperature shrinkage; ALCORIT 63/1,5 – very low iron content in fine fractions, which allows to use it for operation in reducing environments. |
| ALICAST 60/2.3 ALCORIT 60/1.5 |
Low cement content concretes based on andalusite. They are significantly superior in terms of thermal resistance (ability to resist sharp and frequent temperature changes) to similar concretes on other aggregates. At high temperatures in andalusite concretes, the formation of secondary mullite accompanied by a slight increase in volume occurs, which compensates for the sintering-induced shrinkage and minimizes the formation of cracks. This is particularly characteristic of the low-cement concrete ALCORIT 60/1.5, whose composition has been optimized to facilitate the mullitization process. ALIKAST 60/2,3 is the most popular material for lining of heating and thermal furnaces of various designs. |
| ALICAST 65/2,1 ALCORIT 69/1.5 |
The main component of these concretes is synthetic mullite. Mullite concretes are characterized by low creep at high temperatures, resistant to frequent and sudden temperature changes. ALCORIT 69/1.5 is often used for the manufacture of burner stones for critical applications. |
| ALICAST 70-40/1.5 ALICAST 70/2.5 ALICAST 70/2.5NT ALICAST 80/2.5 ALICAST 80/2.5AR ALICAST 80/2.5NT ALKORIT 80/1.0NT ALCORIT 85/1.5 |
Deflocculated concretes based on bauxite, a natural material containing 75-90% Al2O3. Four types of bauxite with different chemical composition, density and water absorption are used in the manufacture of these mixtures. They are superior to andalusite and mullite concretes in mechanical strength, density and abrasion resistance, but somewhat inferior to them in thermal resistance, high-temperature stability and thermal insulation properties. ALIKAST 70-40/1.5 and ALIKAST 70/2.5 are the most economical of all high alumina deflocculated concretes, ALCORIT 80/1.0NT is an ultra-low cement bauxite mix for use at temperatures up to 1700°С. ALIKAST 80/2,5, ALIKAST 80/2,5NT, ALIKAST 80/2,5AR are very popular low-cement bauxite concretes with a wide range of applications. They are produced in three modifications: ALIKAST 80/2,5 – basic economical version on ordinary bauxite; ALIKAST 80/2,5NT – concrete on high-density bauxite with increased application temperature; ALIKAST 80/2,5AR is a concrete on high-purity bauxite with increased density, strength and low iron content. |
| ALCORITE 98 ALCORITE 99 |
High-purity corundum concretes. Highly flame retardant, recommended for use in highly corrosive atmospheres, including those with high hydrogen content. Due to its very low CaO content, ALCORIT 99 is recommended for lining furnaces for combustion of chlorine-containing products. |
| ALIT 83. ALIT 83NT |
ALIT 83 is a corundum mix with very high strength and density. For more than twenty years of production, it has proven itself in various industries, particularly in aluminum scrap processing furnaces. ALIT 83NT is a high temperature version of this concrete. |
| ALIFEST 50/0.6 ALIFEST 85/0 ALIFEST 85/0,6 ALIFEST 85/1.5 ALIFEST 98 |
ALIFEST’s cementless, ultra-low-cement and low-cement mixtures have a significantly enlarged grain composition and a very complex and balanced binding matrix. The content of high alumina cement in these concretes usually does not exceed 2%. The structure of these concretes is extremely dense and low-porous, and their thermomechanical properties, including at high temperatures, are very high. |
Warning: Undefined array key "title" in /data01/virt121517/domeenid/www.demomark.ee/htdocs/wp-content/plugins/contact-form-7/includes/contact-form-functions.php on line 239