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Its all about the type of soil and the building structure is going to build on it.

If the site soil is not the type (i.e; like clay soil, the soil cannot having load bearing capacity etc.,) for constructing big buildings, its better to go for raft foundation. Because, this type of foundation spreads the load of building to overall area and if the foundations are constructing very near by each other means. In that time also, this foundation can be laid.

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13y ago

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How do you build raft foundation?

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What is a raft beam?

The perimeter beam around the edge of a raft foundation.


What are the advantages and disadvantages of raft foundation?

The main advantage of a raft foundation is that it is more economical. Another advantage is that it requires little excavation. The disadvantages of raft foundations are that there is a greater potential for erosion, and they require specific treatments to bear a load.


What are the disadvantages of raft foundation?

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What is the difference between a raft foundation and a mat foundation?

They r the same. There is no difference.


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The raft will help to avoid any settlement that would occur to strip the foundation. The mat is just placed there to avoid slipping.


How do you build a raft?

If you are looking to make a homemade raft there are a few important details you must consider before beginning to build it. The raft must be light, sturdy and sufficiently buoyant. These characteristics appear easy enough. But I learned many valuable lessons when I tried to build a homemade raft of my own.Check out my page How to Build a Raft-How to Make a Homemade Raft on Hubpages for my information about my experience. (see link in 'related links' section below)


How do you build rafts?

If you are looking to make a homemade raft there are a few important details you must consider before beginning to build it. The raft must be light, sturdy and sufficiently buoyant. These characteristics appear easy enough. But I learned many valuable lessons when I tried to build a homemade raft of my own.Check out my page How to Build a Raft-How to Make a Homemade Raft on Hubpages for my information about my experience. (see link in 'related links' section below)