Lightweight insulation refractory castable
Specification: 25kg/bag
Lightweight thermal insulation casting material is composed of alumina cement, refractory light aggregate and a number of additives. product has a light volume, high compressive strength, and resistance to acid and acidic gas corrosion. This type of refractory casting material has the characteristics of weight, high compressive strength, resistance to acid and acidic gas corrosion, heat insulation, and thermal insulation. The lightweight thermal insulation casting material has a moisture content and good fluidity, and the materials and binders used can be selected according to the service conditions. It can be directly cast as a lining for use or it can be cast or tamped into precast blocks for use. The lightweight thermal insulation casting material is easy to construct and is an ideal product with good thermal and heat insulation effects at high temperatures and certain acid corrosion resistance. The initial setting time and the construction operable time are long, the strength increases rapidly, themeability is strong, no acidification treatment is required, and it is easy to ensure the full compaction of the masonry joint. It can significantly improve air tightness, integrity and acid resistance of the lining of the chimney lining, and is an ideal lining material for the lining of chimneys, sintering machines large flue gas channels, boiler insulation layers, waste incineration furnace insulation layers, various high-temperature flue gas channels and air ducts. weight insulation casting material is mainly used for the insulation layer of various high-temperature industrial furnaces. 【Product characteristics】 (1) High service temperature and excellent thermal insulation performance. (2) Low volume density, low thermal conductivity, and reduced heat loss. (3) Good workability and adhesion. (4) Resistant to chemical erosion and strong resistance to acidic or alkaline gases. (5) The overall structure of cast-in-place lining is strong, with good air tightness and certain corrosion resistance.
Project
| Lightweight insulation 0.8 | Lightweight insulation 1.0 | Medium-quality high-alumina | Intermediate quality mullite | |
Al2O3/% | ≥35 | ≥35 | ≥40 | ≥45 | |
Volumedensity g/cm³ | 0.8 | 1.0 | 1.5 | 1.8 | |
Use temperature/℃ | - | - | 1200 | 1300 | |
Heating wire variation rate/% | ±1.5 | ±1.5 | ±1.0 | ±1.0 | |
Thermal conductivity(350℃±25)(W/m·k) ≤ | 0.35 | 0.45 | 0.7 | 0.7 | |
Construction water addition/% | 15-20 | 15-20 | 15-18 | 15-18 | |
Construction method | Shuttering Vibration | Shuttering Vibration | Shuttering Vibration | Shuttering Vibration | |
Use | Thermal insulation | Thermal insulation | Thermal insulation, high temperature resistance | Thermal insulation, high temperature resistance | |
*Can be negotiated and customized according to the customer's indicators. | |||||
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