Refractory Cement Price South Africa
Refractory cement is a common refractory material, also known as high-temperature cement, which can maintain its performance in high-temperature environments for a long time, and will not lose its strength and hardness due to continuous high temperature. Refractory cement is mainly made of alumina, silicate and other materials, with high strength, high wear resistance, high fire resistance and chemical corrosion resistance.
The main application field of refractory cement is continuous high temperature industry, such as iron and steel smelting, glass production, cement production, furnace body and so on. In these fields, refractory cement is widely used because it can withstand the harsh working environment conditions such as continuous high temperature, high pressure, and chemical corrosion. At the same time, refractory cement is also widely used in the construction industry, such as high-rise buildings, tunnel construction, bridges and other projects, to improve the fire resistance and safety of buildings.
Types of Refractory Cement
Refractory cement can be divided into aluminate refractory cement, low calcium aluminate refractory cement, calcium magnesium aluminate cement and dolomite refractory cement according to the different components.
1. Aluminate refractory cement
Aluminate refractory cement is generally a refractory cement made by mixing and grinding 4 parts (by mass) of low-calcium aluminate refractory cement clinker and 1 part of high-alumina cement clinker. Compared with low-calcium aluminate refractory cement: higher early strength, similar refractoriness, and consistent use.
2. Low calcium aluminate refractory cement
Low-calcium aluminate refractory cement is made of high-quality bauxite and limestone in an appropriate proportion, sintered and ground. Its composition is usually: oxygen component accounts for 70%, calcium oxide accounts for 19% to 23%, silicon dioxide <4%, iron oxide <1.5%. The mineral composition is mainly monocalcium dialuminate, accounting for 60% to 70%, and the refractoriness is above 1650°C. Compared with high-alumina cement, the main differences are: higher alumina content, lower calcium oxide content, lower early strength, and higher refractoriness. It can be formulated with refractory aggregates (such as calcined bauxite, high alumina brick fragments, etc.) with a refractoriness above 1770°C to make refractory concrete or refractory mortar, which is used for the lining of cement rotary kilns and other industrial kilns.
3. Calcium magnesium aluminate cement
Calcium-magnesium-aluminate cement is mainly made of high-quality bauxite and dolomite in an appropriate proportion, sintered and ground. The composition of calcium magnesium aluminate cement is usually: alumina accounts for 66% to 74%, calcium oxide accounts for 13% to 18%, and magnesium oxide accounts for 10% to 13%. Silica and iron oxide traces. The mineral composition is calcium aluminate and calcium dialuminate accounting for 45% to 60%, and spinel accounting for 35% to 50%. The refractoriness is above 1650°C.
Our refractory cement price is the factory price, so it will be lower, plus the freight to South Africa, that is the Refractory Cement Price South Africa, if you are interested, please contact us to get the latest quotation.