Building foundations are the basis of every structure, and they must always be stable and secure. Foundations are the lowest part of a structure, but arguably the most important. Their role is to transfer the weight of the building safely to the ground, preventing any dangerous movement or structural damage. Without proper foundations, even the strongest structure is not safe.
Concrete is one of the most widely used materials when it comes to constructing building foundations. This is because it provides:
- Strength
- Durability
- Resistance to moisture and temperature changes
- It can withstand heavy loads
- Distributes weight evenly
All of these factors contribute to structural stability, and it’s these properties that make concrete foundations a key component in all types of construction projects.
At Procrete Yorkshire, we supply precision-batched concrete for a wide range of domestic and commercial projects – including building foundations. In this article, we’ll explain the different types of foundations used in the industry.
Read on for more information…
What are the different types of foundations?
Building foundations are generally divided into two main categories:
- Shallow foundations
- Deep foundations
Each type serves a different purpose depending on the depth required to reach stable soil and the weight of the structure being supported.
Let’s take a closer look at each type:
What are shallow foundations?
Shallow foundations are constructed very close to the ground surface. They are typically used when the soil near the surface is strong enough to support the load of the building. They are commonly found in residential construction projects.
What are deep foundations?
Deep foundations extend much further into the ground compared to shallow foundations. They tend to be used when surface soil is weak or not able to support the weight of the structure.
Different types of shallow foundations
Shallow foundations are the most common in the construction industry and are often used for houses and small commercial buildings. There are a whole host of shallow foundations, including:
Mat (Raft foundations)
Mat foundations, also known as raft foundations, consist of large reinforced slabs that spread across the building. The slabs distribute the weight evenly across a wide area that helps reduce pressure on the soil.
Mat foundations are particularly useful when soil conditions are weaker or if columns and walls are closely spaced.
Spread footings
Spread footings make the base of foundations wider to support columns and other structural elements. The load of the building is spread over a larger area, which reduces pressure on the ground.
These footings are typical square or rectangular concrete blocks that are placed beneath the columns, and they are widely used in residential and commercial construction projects.
Basement foundations
Basement foundations extend below ground level and create additional usable space under the structure. The footings are fully submerged, and as well as supporting the structure, the basement itself can also act as storage or additional living space in a property.
Concrete slab foundations
Using large slabs of concrete, concrete slab foundations use reinforced concrete that is prepared directly into the ground. This acts as both the foundation and the floor of the building.
Different types of deep foundations
Deep foundations are used when the soil close to the surface is not strong enough to support the building’s weight. In these cases, the foundation needs to extend deeper into the ground to reach stronger layers of soil. These foundations are typically used for larger buildings or to support particularly heavy loads.
The main types of deep foundations include:
Pile foundations
Pile foundations involve driving or drilling long columns, known as piles, deep into the ground. These piles are often made from concrete, and they are designed to transfer the load of the structure to stronger rock layers.
Pile foundations are commonly used for large structures, high-rise buildings and other projects where the surface of the soil cannot safely support heavy loads.
Caisson Foundations
Caisson foundations are large boxes or cylindrical structures that are sunk into the ground until they reach stable soil or rock. Once positioned, they are filled with concrete to create a strong and stable foundation.
These foundations are often used in projects like bridges, piers and dams.
Reliable concrete for foundations you can trust
Choosing the right building foundations for your project is essential for the safety and longevity of any structure. Whether you need shallow foundations or deep foundations, high-quality concrete is at the heart of every reliable base, from precisely batched readymix concrete to flexible, volumetric concrete solutions.
At Procrete Yorkshire, we supply the best concrete designed specifically for building foundations to our customers across Yorkshire. Get in touch with our team today to find out more.