| 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 | 3 days after molding | after firing at 800˚C | |||||
| Alax 0.3-900 | perlite | 24 | 43 | 8 | 20 | 0.3 | 0.2 | 0.2 | 0.13 | 900 |
| Alax 0.4-950 | vermiculite, perlite | 30 | 28 | 9 | 22 | 0.4 | 0.6 | 0.6 | 0.14 | 950 |
| Alax 0.5-1000 | vermiculite | 32 | 21 | 12 | 24 | 0.5 | 1 | 0.8 | 0.15 | 1000 |
| Alax 0.6-1000 | vermiculite | 33 | 16 | 13 | 25 | 0.6 | 1.5 | 1 | 0.16 | 1000 |
| Alax 0.7-1000 | vermiculite | 36 | 19 | 12 | 25 | 0.7 | 2 | 1.5 | 0.17 | 1000 |
| Alax 0.8-1000 | vermiculite, expanded clay | 32 | 27 | 11 | 18 | 0.8 | 2.5 | 1.7 | 0.2 | 1000 |
| Alax 0.8-1000A | vermiculite, expanded clay | 36 | 28 | 6 | 18 | 0.8 | 2.5 | 1.5 | 0.2 | 1000 |
| Alax 0.8-1000A/1.5 | lightweight fireclay, perlite | 43 | 31 | 1.5 | 21 | 0.8 | 4 | 3 | 0.2 | 1000 |
| Alax 0.8-1250A | lightweight fireclay, perlite | 47 | 36 | 1 | 13 | 0.8 | 3 | 2 | 0.2 | 1250 |
| Alax 0.9-1000 | vermiculite, expanded clay | 32 | 30 | 11 | 17 | 0.9 | 5 | 3 | 0.22 | 1000 |
| Alax 0.9-1000B | vermiculite, expanded clay | 22 | 39 | 6 | 22 | 0.9 | 3 | 2 | 0.22 | 1000 |
| Alax 1.0-1000 | vermiculite, expanded clay | 32 | 30 | 11 | 17 | 1 | 7 | 3.5 | 0.24 | 1000 |
| Alax 1.1-1100T | vermiculite, expanded clay | 36 | 33 | 8 | 19 | 1.1 | 8 | 8 | 0.27 | 1100 |
| Alax 1.1-1150T | perlite, expanded clay | 35 | 29 | 6 | 18 | 1.1 | 10 | 10 | 0.27 | 1150 |
| Alax 1.2-1150H | expanded clay | 33 | 30 | 11 | 17 | 1.2 | 15 | 13 | 0.3 | 1150 |
| Alax 1.2-1200 | lightweight fireclay, vermiculite | 38 | 33 | 9 | 16 | 1.2 | 7 | 4 | 0.3 | 1200 |
| Alax 1.2-1200P | lightweight fireclay, vermiculite | 38 | 39 | 8 | 13 | 1.2 | 5 | 3 | 0.3 | 1200 |
| Alax 1.0-1250 | lightweight fireclay | 35 | 42 | 7 | 13 | 1 | 6 | 4 | 0.3 | 1250 |
| Alax 1.0-1250C | lightweight fireclay | 40 | 38 | 6 | 13 | 1 | 5 | 4 | 0.3 | 1250 |
| Alax 1.0-1250AC | lightweight fireclay | 51 | 33 | 1 | 12 | 1 | 10 | 7 | 0.3 | 1250 |
| Alax 1.0-1350 | lightweight fireclay | 40 | 42 | 2 | 13 | 1 | 6 | 4 | 0.3 | 1350 |
| Alax 1.0-1350TI | lightweight fireclay | 38 | 44 | 1.8 | 13 | 1 | 4 | 3 | 0.3 | 1350 |
| Alax 1.2-1350 | lightweight fireclay | 41 | 41 | 2 | 13 | 1.2 | 13 | 7 | 0.4 | 1350 |
| Alax 1.4-1250 | lightweight fireclay | 39 | 39 | 8 | 13 | 1.4 | 15 | 5 | 0.5 | 1250 |
| Alax 1.4-1350 | lightweight fireclay | 43 | 40 | 3 | 12 | 1.4 | 18 | 8 | 0.5 | 1350 |
| Alax 1.4-1350TI | lightweight fireclay | 38 | 42 | 4 | 12 | 1.4 | 9 | 6 | 0.5 | 1350 |
| Alax 1.6-1350 | lightweight fireclay | 43 | 41 | 2.5 | 11 | 1.6 | 30 | 15 | 0.6 | 1350 |
| Alax 1.4-1400H | lightweight fireclay, spherocorundum | 77 | 9 | 0.5 | 12 | 1.4 | 30 | 30 | 0.55 | 1400 |
| Alax 1.0-1500 | lightweight high alumina aggregate | 85 | 0.2 | 0.2 | 14 | 1 | 3 | 3 | 0.3 | 1500 |
| Alax 1.2-1500 | lightweight fireclay, corundum | 57 | 31 | 1 | 9 | 1.2 | 14 | 9 | 0.42 | 1500 |
| Alax 1.4-1550 | lightweight fireclay | 67 | 21 | 0.8 | 9 | 1.4 | 17 | 12 | 0.52 | 1550 |
| Alax 1.2-1700 | spherocorundum | 86 | 0.2 | 0.1 | 13 | 1.2 | 18 | 10 | 0.65 | 1700 |
| Alax 1.6-1800 | spherocorundum | 90 | 0.1 | 0.1 | 9 | 1.55 | 25 | 30 | 0.85 | >1700 |
| Alax 1.6-1800T | spherocorundum | 86 | 0.2 | 0.1 | 12 | 1.6 | 30 | 60 | 0.9 | >1700 |
| Alax 1.6-1800C | spherocorundum | 90 | 0.1 | 0.1 | 9 | 1.65 | 30 | 30 | 0.95 | >1700 |
| These values may vary depending on the characteristics of the raw materials and are not guaranteed. | |
|---|---|
| ALAX 0.3-900 ALAX 0.4-950 ALAX 0.5-1000 ALAX 0.6-1000 ALAX 0.7-1000 ALAX 0.8-1000 ALAX 0.9-1000 ALAX 0.9-1000B ALAX 1.0-1000 |
Thermal insulating concretes with density from 0.3 g/cm3 to 1.0 g/cm3 with application temperature 900-1100°C. They have low thermal conductivity and sufficiently high strength for lightweight concrete, retain their structure and properties during long-term operation. Unlike many analogs, CaO in these concretes is completely bound into stable calcium aluminates at high temperatures. ALAX 0.6-1000 and ALAX 0.9-1000 are ASTM C401 classes N and O, and are the popular 1:0:6 and 1:2:4 series concretes, respectively. For twenty years of production ALAKS 0,9-1000 mixture has become a “classic” material for manufacturing the working layer of lining of heating tube furnaces of various designs. ALAKS 0,9-1000B is an economical variant of this mixture, the technological characteristics of which (setting time, speed of strength gain, sensitivity to ambient temperature, etc.) are not as stable as those of ALAKS 0,9-1000. Mixtures with a density of less than 0.6 g/cm3 are recommended for use in inner linings only. They provide very effective thermal insulation because their thermal conductivity is only slightly higher than that of insulation boards and fiber materials. |
| ALAX 0.8-1000A ALAX 0.8-1000A/1.5 ALAX 0.8-1250A |
Thermal insulating concretes with a density of about 0.8 g/cm3 with reduced and very low iron content, intended for use in a reducing environment, e.g. in catalytic reforming reactors, hydrotreaters, synthesis gas production units. |
| ALAX 1.1-1100T ALAX 1.1-1150T ALAX 1.2-1150N |
High-strength lightweight concrete for applications with frequent temperature fluctuations and moderate erosion. |
| ALAX 1,2-1200 ALAX 1.2-1200R |
Mixtures based on lightweight chamotte and vermiculite for use at temperatures up to 1200°C. The mixture with the index “P” is designed for application by coating method, recommended for local repairs, often used for lining of boilers for various purposes. |
| ALAX 1.0-1250 ALAX 1.0-1350 ALAX 1.0-1350TI ALAX 1.2-1350 ALAX 1.4-1250 ALAX 1.4-1350 ALAX 1.4-1350TI ALAX 1.6-1350 |
Mixtures based on lightweight chamotte of different density and chemical composition. They have a fairly low thermal conductivity. At the same time, their rather high durability allows these concretes to be used even under conditions of moderate abrasion. Widely used in various industries in both inner and working layers of high-temperature furnace linings. ALAX 1,4-1350 and ALAX 1,6-1350 blends are often used for the manufacture of single-layer liners for reactors and regenerators of catalytic cracking units with pulverized catalyst. Economy mixes with index “TI” have a less homogeneous structure and slightly higher shrinkage at high temperatures. For gun shotcrete application it is recommended to use the appropriate mixes of the ALIGAN series. |
| ALAX 1.0-1250C ALAX 1.0-1250AS ALAX 1.6-1800C |
Self-compacting concretes with low thermal conductivity. Have high flowability without the application of vibration. Indispensable when pouring linings of large-sized structures of complex configuration, easily fill hard-to-reach areas of the lining. ALAX 1.0-1250AC is a self-compacting mix with low thermal conductivity, high strength, low iron content and low shrinkage on heating. In long-term operation it retains a compact structure with few cracks, therefore it can be used for the manufacture of critical linings of complex configuration operating in environments with high hydrogen content, such as synthesis gas collectors. |
| ALAX 1.4-1400N ALAX 1.0-1500 ALAX 1,2-1500 ALAX 1.4-1550 |
Concretes based on lightweight chamotte (ALAKS 1,0-1500 – based on porous high alumina aggregate) for operation at temperatures of 1400°C and more. The binding matrix of these concretes has a complex composition and is characterized by a low Fe2O3 content, so they can be used in reducing environments. |
| ALAX 1.2-1700 ALAX 1.4-1800 ALAX 1.6-1800 ALAX 1.6-1800T ALAX 1.6-1800C |
High-purity spherocorundum-based concretes for use at extremely high temperatures and/or in highly reductive, including hydrogen-containing atmospheres. ALAX 1,2-1700 mix has a unique combination of high fire resistance and low density. The mechanical properties are maintained at a very high level. ALAX 1.6-1800 concrete has a strength comparable to that of dense concrete and standard bricks. Since its density is substantially lower, it is often advisable to use it as a replacement for dense corundum concrete and bricks in order to reduce the thickness, weight and cost of the lining. |
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