What Is Vacuum Concrete?

Application of Vacuum Concrete

1. The main application of vacuum concrete is hydropower plants.
2. Vacuum concrete application is a cooling tower.
3. The another application of vacuum concrete is on the industrial floor, cold storages, etc.
4. Vacuum concrete is widely used in bridges of ports and harbours.

Advantages of Vacuum Concrete

1. The one of the main advantages of vacuum concrete is the density of this concrete is higher than other concrete.
2. The vacuum concrete has decreasing power of permeability; it is also one of the main advantage.
3. The final strength of concrete is increased by 25% than any other concrete.
4. The stiffness of this concrete is very high; that’s why the formwork is easily removed within 30 minutes and columns of the height of 20 feet.
5. Vacuum concrete has a bond strength of 20% higher than other concrete.
6. The one of the main advantages of this vacuum concrete is the cost of this is reasonable, so it’s economical. Vacuum concrete is mainly used in the precast factory.
7. Vacuum concrete creates well bonds with older concrete; this is the main reason for using this concrete for repair purpose. This is mainly used in road slab repair.

Disadvantages of Vacuum Concrete

1. The one of the main disadvantages of vacuum concrete is it requires specific equipments than other concrete, so this is the main cause of the increase in the cost of concrete.
2. Vacuum concrete needs more skillful labours; it’s another disadvantage.
3. The initial cost of the vacuum concrete is higher than the normal one.
4. Vacuum concrete needs more power consumption for using special and specific equipment.
5. The porosity of vacuum concrete is a little bit higher than normal concrete; for this reason, it allows to move the of substances like oil, water, grease, etc.

Process of Vacuum Concrete

1. In normal concrete, workability is the main factor to speed up the construction work, but we don’t think too much about the workability of vacuum concrete.
2. In the vacuum concrete procedure, there is a huge amount of vacuum present on the top surface of the concrete.
3. In vacuum concrete processing, there are a large amount of water is removed from a certain depth of the concrete.
4. Vacuum concrete is constructed by laying porous mats which are connected by a vacuum pump.
5. After that, the water-cement is reduced, and the concrete gains it is strength.
6. Vacuum concrete has higher strength capacity, low permeability, and higher durability property, which make the concrete very effective to use.

What Is Vacuum Concrete?

Advantages of Vacuum Concrete

1. Increase of final strength of concrete by about 25%.
2. Early removal of wall forms.
3. Due to dewatering through the vacuum, both workability and strength of concrete are achieved.
4. Durability and density of vacuum concrete are very high.
5. Sufficient decrease in permeability of concrete.

Application of Vacuum Concrete

Disadvantages of Vacuum Concrete

1. High initial cost.
2. Need trained labor.
3. Need specific equipment.
4. Need power consumption.

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