Vacuum Concrete Definition and Advantages

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Vacuum Concrete is another kind of concrete which is quite popular in construction world. This kind of concrete is used so that the construction get better quality in structure. Using This Concrete in the project is really strategic because it has so many advantages. What is Vacuum Concrete and What are its advantages? Please read the following explanation.

What is Vacuum Concrete Definition?

Based on our previous article (http://harbun.me/types-of-concrete/), Vacuum concrete, is one of the types of concrete that is made by using steam to produce a vacuum inside a concrete mixing truck to release air bubbles inside the concrete, is being researched. The idea is that the steam displaces the air normally over the concrete. When the steam condenses into water it will create a low pressure over the concrete that will pull air from the concrete. This will make the concrete stronger due to there being less air in the mixture. A drawback is that the mixing has to be done in a mostly airtight container.

The final strength of concrete is increased by about 25%. Sufficient decrease in The permeability of concrete is sufficient decreased. It stiffens very rapidly so that the formworks can be removed within 30 minutes of casting even on columns of 20 ft. high. This is of considerable economic value, particularly in a precast factory as the forms can be reused at frequent intervals. The bond strength of vacuum concrete is about 20% higher. The density of vacuum concrete is higher. The surface of which is entirely free from pitting and the uppermost 1/16 inch is highly resistant to abrasion.

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Vacuum Concrete Advantages

There are many advantages of using this concrete, they are:

  • The final strength of concrete is increased by about 25%.
  • Sufficient decrease in The permeability of concrete is sufficient decreased.
  • Vacuum concrete stiffens very rapidly so that the form-works can be removed within 30 minutes of casting even on columns of 20 ft. high.
  • This is of considerable economic value, particularly in a precast factory as the forms can be reused at frequent intervals.
  • The bond strength of this concrete is about 20% higher.
  • The density of vacuum concrete is higher.
  • The surface of vacuum concrete is entirely free from pitting and the uppermost 1/16 inch is highly resistant to abrasion. These characteristics are of special importance in the construction of concrete structures which are to be in contact with flowing water at a high velocity.
  • It bonds well to old concrete and can, therefore, be used for resurfacing road slabs and other repair works.

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