Adding white corundum to refractory castable can significantly improve its construction performance, which is embodied in the following aspects:

I. Improving liquidity and plasticity

The addition of white corundum fine powder can significantly improve the fluidity and plasticity of refractory castable. White corundum particles are fine and evenly distributed, which can fill the pores in the castable, making it easier to pour and fill the castable in the construction process, especially suitable for thin-walled or complex-shaped parts.

II. Simplify the construction technology

White corundum refractory castable has good construction performance and can be constructed by pouring, spraying and other ways. Its construction process is simple and fast, and it can adapt to various shapes and sizes of components, reducing the construction difficulty and cost.

III. Reduce the amount of water added

The addition of white corundum fine powder can reduce the water addition of refractory castable. For example, in corundum refractory castable with low apparent porosity, by adding α-ALO micropowder and water reducer, the water addition can be controlled at 3.5% ~ 4.0%, while maintaining good fluidity. This not only improves the construction efficiency, but also reduces the risk of porosity increase and strength decrease caused by excessive moisture.

IV. Improving construction efficiency

With the addition of white corundum, the refractory castable can flow by its own weight and spread automatically during construction, and good filling effect can be achieved without vibration. This characteristic is especially suitable for self-flowing castable, which can significantly improve the construction efficiency.

V. Enhance the adaptability of construction

White corundum refractory castable can be prepared according to actual needs to meet the construction requirements of different occasions. Its good fluidity and plasticity enable it to adapt to various complex construction sites.

VI. Reduce the construction cost

Because white corundum refractory castable is convenient and efficient to construct, and can reduce water addition and improve construction quality, it can effectively reduce labor cost and material waste in the construction process.

To sum up, the addition of white corundum not only improves the construction performance of refractory castable, but also improves the construction efficiency and quality and reduces the construction cost, which makes it more advantageous in the construction of high-temperature industrial equipment.