Castables are a mixture used for filling, patching or fixing materials, and are commonly used in the fields of construction, engineering and manufacturing. Castables can be divided into many types according to their specific uses and ingredients. The following are several common castables and their main uses.

1. Ordinary concrete castable: Ordinary concrete is the most common castable, which is made by mixing cement, sand, aggregate and water in a certain proportion. It is widely used in various building structures, such as floor slabs, walls, columns, etc. Ordinary concrete has good strength and durability and is suitable for most construction projects.

2. Self-leveling concrete castable: Self-leveling concrete is a castable with self-leveling properties. It has high fluidity and can level itself during construction without too much manual operation. Self-leveling concrete is often used in places such as floors, platforms, commercial places, etc. where a flat surface is required.

3. High-strength concrete castable: High-strength concrete is a castable with high compressive strength. It usually uses special proportions and additives to improve the strength and durability of concrete. High-strength concrete is suitable for structures that need to withstand high loads or special requirements, such as bridges, high-rise buildings, etc.

4. Lightweight concrete castable: Lightweight concrete is a castable with low density. Its main characteristics are light weight and good thermal insulation performance. Lightweight concrete is often used in places where it is necessary to reduce the dead weight of the structure or improve thermal insulation performance, such as roofs, walls, etc.

5. Polymer castable: Polymer castable is a material mixed with polymer resin and filler. It has good adhesion and chemical resistance and is often used in repair and coating projects. Polymer castables are widely used in floor repair, waterproof coating, basement waterproofing, pipeline coating and other fields.

6. Refractory castable: Refractory castable is a castable with high temperature resistance. It is usually composed of refractory aggregate and refractory cementitious materials, and is used for the construction and repair of refractory structures such as high-temperature furnaces, chimneys, and furnaces.