REFRACTORY CEMENT IN RWANDA
There are various types of refractory cement in Rwanda. Kingsman Eng. And Industrial Insulation supplies the 3 main types refractory cement in Rwanda. These are Fondu Cement, Maxheat K and Maxheat A. The three types of cement are classified according to their alumina content which determines the range of temperature which they can withstand.
A. Fondu Cement
CIMENT FONDU® is a calcium aluminate-based hydraulic binder and contains calcium silicates, as opposed to Portland Cements. Its has the properties of high early strength and good refractoriness.
Fondu Cement Properties
- High temperature resistance (up to 1000°C)
- Has 3 to 30 minutes setting
- Corrosion Resistance (pH ≥ 4)
- Suitable in very temperatures (-10°C)
- Quick activity resumption (activities can be resumed after 6 hours
Fondu Cement Applications
Fondu cement in Rwanda is applied in various places such as incinerator walls, fences, barbecues fire drill areas, sewage and wastewater systems, seaside projects, ovens, industrial floors, agricultural buildings, lintels, sealing hinges etc.
B.Maxheat K -1600°C (60%-Alumina)
Another common refractory cement (fire cement) in Rwanda is Maxheat K. It is premixed refractory compositions which can cast into any require shape and size. It is mostly preferred due to its high thermal and shock resistance.
MaxHeat K Specifications
- Material: – Refractory Castable
- Type: – 56% Min – 60% Max Alumina Dense castable
- Nature of Bond: – Hydraulic
- Installation: – Vibration Casting
- Service Temperature: – 1600°C
- Maximum Grain Size: – 5 mm
- Water required for casting: – 11 to 12.5%
Maxheat K - 1600°C
Applications of Maxheat K
Maxheat K fire cement in Rwanda is applicable in General purpose uses, Blast furnace, Foundries, Forge furnace, Tunnel kilns, Heat treatment furnace car tops, Electro phosphorus furnace, Sock pit cover construction etc.
Maxheat A - 90% Alumina
C. Maxheat A - 1750°C
Maxheat A is a castable cement in Rwanda suitable for high temperature applications. Just like Maxheat K It is premixed refractory compositions which can cast into any require shape and size. It is mostly preferred due to its high thermal and shock resistance.
MaxHeat K Specifications
- Material: – Refractory Castable
- Type: – 88% Min – 90% Max Alumina Dense castable
- Nature of Bond: – Hydraulic
- Installation: – Vibration Casting
- Service Temperature: – 1750°C
- Maximum Grain Size: – 5 mm
- Water required for casting: – 9 to 11%
Applications of Maxheat A
Just like Maxheat K fire cement in Rwanda, Maxheat A is applicable in General purpose uses, Blast furnace, Foundries, Forge furnace, Tunnel kilns, Heat treatment furnace car tops, Electro phosphorus furnace, Sock pit cover construction etc. However, its service temperature is higher than that of Maxheat K.