What’s The Difference between Concrete Underpinning and Resin Injection?

The stronger the foundation of a house, the more is its durability. There are many different methods and ingredients used to make the foundation of the house strong. However, the basic principle among all of them is to fill in the pores and voids in the soil to make it a solid base.

We often find buildings with cracks near the windows, pipes and the like, all that is due to the foundation of the building not being properly underpinned. You might have also found that sometimes water seeps in mysteriously through the walls and damages them. This also could be because of a faulty foundation.

Concrete Underpinning and Resin Injection

Concrete Underpinning and Resin Injection

This is when the process of underpinning comes into the picture. There are two main kinds of underpinning: concrete underpinning and resin injection.

In this article, we will know more about these underpinning methods in detail.

Concrete Underpinning

This is one of the best ways to improve the foundation of the house. This is one of the safest methods to strengthen the foundation of the house. This method of underpinning has been used time and again for over a century now and is one of the most dependable methods of underpinning.

In here, holes are dug into the soil beneath the foundation and are filled with concrete. When the concrete solidifies, it tightens the soil and makes your foundation strong. It is more like some extended pillars below the soil. It creates a foundation beneath your already existing foundation.

Advantages

  • It is an acclaimed method of underpinning for centuries now and has been proved scientifically to be suitable for the purpose.
  • It is used extensively across the globe.

Disadvantages

Concrete Underpinning Melbourne

Concrete Underpinning Melbourne

  • The process of mixing, pouring and drying the concrete takes quite some time.
  • It requires an appreciable amount of manpower, and hence, it is a little expensive.
  • It might not be a very suitable method for all kinds of soils. This method is more soil specific.
  • It requires excavations which might be a messy job at times and requires a lot of skilled labour.

Resin Injection Underpinning

This is known to be another very popular method of underpinning and is a more modern method of underpinning.

The resin injection method of Underpinning has been proven scientifically. This is an eco-friendly approach and has been accepted time and again. The approach includes injecting an eco-friendly resin into the ground which seeps through the soil and goes into the depths. There it expands as it forms a gel.

This expanded gel form puts pressure on the surrounding areas and compresses the soil around it while also filling in the gaps between the particles of the soil. Resin method is generally undertaken under the supervision of experts and technicians, who, with the help of certain precision instruments level and control the amount of resin being injected.

In case, there is more resin injection, the house would be lifted off the ground, which is not desirable.

Advantages

  • It does not create a lot of mess as no excavation is required.
  • It is less time consuming compared to many other underpinning methods, especially the concrete underpinning method.
  • You can stay in your home and there is no need to move furniture.

    Resin Injection Underpinning

    Resin Injection Underpinning

  • It has been proven for over 30 years and is in use vastly ever since.
  • It can be used effectively for all kinds of soil.

Disadvantages

  • This process needs to be undertaken under the supervision of professionals and only by practiced technicians.
  • A couple of precision instruments are required to ensure that the right amount of resin is injected into the soil to serve the purpose.
  • The process is pretty costly compared to some other methods of Underpinning.

Both concrete Underpinning and resin injection underpinning have their own share of advantages and disadvantages. In the end, it depends on you as an owner to decide which underpinning method you would like to opt for.

Also, do not forget to consult you underpinning expert and ask for their recommended method as they know it better than you.


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