Alkali proof castable has high liquidity and is suitable for unshaped refractory materials made with pouring type. Alkali proof refractory castable has various features of high temperature resistance, high mechanical strength and strong acid erosion resistance for all kinds of furnaces and kilns application. Alkali proof castable can react with metal oxide at high temperature generating high viscosity liquid products, which forming a glaze layer avoiding the penetration and erosion of the alkali melting metal.
Alkali proof refractory castable is made of refractory aggregates, binders and alkali resistance powder. Its aggregates are ceramsite, sticky soil clinker, waste porcelain material, high strength expanded perlite, etc. together with calcium aluminate cement and sodium silicate as binders.
According to different conditions and environments, alkali proof castable can be divided into light alkali proof castable and heavy alkali proof castable. Those with porosity greater than 45% are light alkali proof castable and those with porosity less than 45% are heavy alkali proof castable. The heavy quality alkali proof castable can be divided into medium temperature alkali proof castable and high temperature alkali proof castable.
|Bulk Density g/cm3 ≥||110℃×24h||2.2-2.4||2.2-2.4|
|Modules of rupture Mpa ≥||1110℃×3h||7||8|
|Cold crushing Strength Mpa ≥||1110℃×3h||70||80|
|Linear dimensional change||1110℃×3h||±0.4||±0.4|
Refractory alkali proof castable is widely used in the industrial furnaces that are eroded by alkali materials, such as the kiln hood, preheater system, decomposition furnace. And also can be used in the following place.
RS refractory factory is a professional alkali proof castable supplier that established in the early 90s of twenty century. RS refractory factory has specialized in alkali proof castables for more than 20 years. if you have some demand of refractory alkali proof castable, or have some questions on refractory alkali proof castable about physical and chemical indicators, please contact us for free. and Rs refractory factory as a professional alkali proof castable manufacturer in china, has some competitive advantages as follows: