Foam concrete manufacturing method
Foamed concrete, also known as CLC foamed concrete, is formed by foaming and adding a blowing agent in a slurry made of a cementitious material, a blending agent, a modifier, water, etc., by mixing, Cast and naturally solidified. A new lightweight insulation material that contains a large number of closed holes.
Many studies have shown that lightweight concrete has the same effect as ordinary concrete. We can use this concrete in any type of structure with great care. Therefore, it helps to reduce the size of the columns, beams and foundations, and also helps to reduce the percentage of steel in the structure. Lightweight concrete makes the structure very economical.
It is a foam-like insulating material characterized by the formation of closed foam holes in the concrete to make the concrete lighter and more insulating. The foam holes in the foam concrete block are not connected, so the heat preservation performance is good, the water permeability is low, and the sound insulation effect is good. In the production of foam concrete blocks, the foaming agent is physically foamed by a foaming machine, and then bubbles are added to the cement. The foamed concrete block mixed in the slurry is cured at room temperature or dry heat.
Regarding the construction process of foamed concrete, I don't know how many friends know about it. The following is a brief introduction. I hope it will help you properly build foam concrete!
The construction of foam concrete is usually based on some useful machines, so the machine is the most important.
1. Foamed concrete structure Before pouring lightweight blocks, the basic waste should be cleaned and sprinkled.
2. The construction of foam concrete should be based on the horizontal standard line and the design thickness, and spray the upper layer elevation control line of the surface layer on the surrounding wall and column.
3. The mixing ratio of foam concrete structure to concrete should be determined experimentally according to design requirements. Feeding must be strictly overweight and the mixing ratio should be precisely controlled. The feed sequence is cement, sand, foaming agent and water.
4. Prior to the construction of foam concrete, the base layer should be wetted and a common cement slurry or interface adhesive applied to the base layer. When vibrating or rolling, the uniformly stirred concrete should be lowered from the room and applied to the concrete under low pressure. Fill in. When the surface layer of the gray surface absorbs water, it can be beaten and flattened with a wooden trowel.
5. When pressing the foam concrete structure for the first time, gently wipe it with a steel trowel until the slurry is released. After the second pass, after the first layer of mortar is first solidified, fill the pits and blisters with iron trowels, taking care not to leak water. Apply the third time. Before the final layer of mortar is finally cured, the iron trowel is pressed hard and then all embossed is pressed to form a dense and smooth surface.