What is the difference between ramming and pouring?

What is the difference between ramming and castables? First of all, these two products are all amorphous refractories. The ramming material is applied by beating and hardened by heating. The castable is constructed by pouring and can be hardened without heating. What is the difference between ramming and casting? The difference lies in the construction method and hardening method. Please see the details below.

Beating and pouring definition

1. On-site mixing, with wind or mechanical beating, the wind pressure is not less than 0.5MPa. If the amount of material is small or the part that is not important is used, it can also be knotted by hand.

It is made by mixing refractory aggregates, powders, binders, admixtures with water or other liquids with a certain grade. Therefore, the lining of the refractory ramming material has a low water content, a knotted compactness, and the performance is superior to the refractory castable of the same material. The disadvantage of refractory ramming material is that the construction speed is slow, the labor intensity is large, and there is a tendency to be replaced by dry vibrating materials and high-quality refractory castables.

2, castables, castables are generally cast at the site of use by casting, vibration or tamping, can also be made into prefabricated parts.

Application and classification

If the amount of material is small or the part that is not important is used, it can also be knotted by hand. Classified by material: high alumina, clay, magnesia, dolomite, zirconium and silicon carbide. The castables are classified according to the materials: 1. According to the porosity distribution, the compact refractory castables and the insulating refractories with a porosity of not less than 45%; 2, according to the bonding agent, hydraulically bonded, chemically bonded, condensed Combined with refractory castables.

Castables are currently the most widely produced amorphous refractory materials. It is mainly used to construct various structures such as heating furnace linings, which are used in metallurgical, petroleum, chemical, building materials, electric power, machinery industry furnaces and heating equipment. The high-quality products can also be used in smelting furnaces.

The ramming material is made of silicon carbide, graphite, electric calcined anthracite as raw material, mixed with various ultrafine powder additives, fused cement or composite resin as a bulk material. It is used to fill the cooling equipment of the furnace body and the filler for the masonry gap or masonry leveling layer. The ramming material has good chemical stability, erosion resistance, anti-wear, anti-flaking, and heat shock resistance. It is widely used in metallurgy, building materials, non-ferrous metal smelting, chemical, machinery and other manufacturing industries.

Related questions and answers

Q: Is the performance of ramming material related to the quality of beating?

Answer: The performance of the product has a certain relationship with the construction quality. If the construction is not good, the service life will be affected.

The above is all about the difference between the ramming material and the casting material. I hope that it will help you when purchasing refractory materials.