Among the foaming agents, the protein based agent is the most popular. They have good performance and strength, but are expensive. They are usually made of animal offal and potassium salts of fatty acids.

These foaming agents can be used to produce foamed concrete, which is a lightweight, thermal insulating material. The foamed concrete has a free flowing consistency when it is fresh. It is also environmentally friendly.

It has a wide range of applications. It is suitable for floor heating, roof insulation engineering, and floor sealing. It is non-toxic, odorless, and is long-lasting. It can be used in foam concrete brick, and foamed roof insulation. Its insulation properties are better than similar density concrete.

Another type of foaming agent is a synthetic surfactant. They are easier to handle and store for longer periods. The synthetic foaming agent is highly concentrated liquid.

Foaming agent is produced by adding distilled water and a foaming agent to the mix. It is a high-tech product that has been developed for many years. Compared with traditional foaming agents, it has excellent foaming capacity, stable foaming effect, and uniform foam size. It can also meet the requirements of solidifying soil.

The wet foaming process produces foam with a large bubble structure. It can be mixed with cement mortar or gypsum mortar. However, wet foaming is not a good option for foam concrete. This is because wet foam is too thick and may leak. It is difficult to control the stable air and water content.