Product Overview
Low cement castable refers to a new type of castable with a small combined dosage, CaO content below 2.5%. The key point is the use of ultra-fine particles not exceeding 1
μm. Its thermal shock resistance, slag resistance and erosion resistance have been significantly improved, better than similar refractory bricks. The purpose of reducing the amount of cement is to improve the fire resistance of the castable.
Product Characteristics
01.
Low apparent porosity
02.
Good thermal shock resistance
03.
Good slag resistance
04.
Strong erosion resistance
Application
Low cement castable is widely used in various kinds of industrial furnace lining, such as blast furnace, hot blast stove, heating furnace, iron runner cover, electric furnace top, ceramic kiln, cement kiln, boiler, chemical furnace, etc.
Product Specifications
| Item | LCCA-1 | LCCA-2 | LCCA-3 | LCCA-4 | LCCA-5 | LCCA-6 | |
| Chemical Analysis % | Al2O3 | >45 | >48 | >50 | ≥60 | >70 | 75 |
| CaO | 1.5 | 2.4 | 2.4 | 1.7 | 1.5 | 1.3 | |
| Compressive Strength/MPa | 110℃*24H | 30 | 33 | 35 | 50 | 70 | 100 |
| 1100℃*3H | 55 | 58 | 60 | 60 | 82 | 110 | |
| Flexural Strength/MPa | 110℃*24H | 7 | 7 | 7 | 8 | 10 | 100 |
| Liner Change After Burning % | 1800℃ | 2.38 | 2.4 | 2.42 | 2.45 | 2.69 | 2.72 |
