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Raft Slabs
Raft slabs are an ideal foundation solution perfect for difficult or sloping sites. If you're looking for a high-quality raft slab in Melbourne, you can't beat Cemex Concrete Company's team.
We can provide raft slabs for various applications, and our team of experts is always on hand to advise and guide you on the best solution for your needs.
General Uses of Raft Slabs in Melbourne
Raft slabs can level out an uneven surface or provide extra support for a heavy structure. They are also perfect for use in areas with a high water table or where the soil is particularly weak or unstable, as they provide a stable and level foundation that won't be affected by waterlogging. This makes them ideal for use in nearby rivers, creeks, or areas prone to flooding.
Types of Raft Slabs
There are many types of raft slabs, but the most common are the flat plate, waffle plate, and ribbed slab.
Flat plate raft slabs
The flat plate raft slab is the simplest and most common type. It is a single layer of concrete with reinforcement placed at the bottom. Columns or walls support the flat plate.
Waffle plate raft slabs
The waffle plate raft slab is similar to the flat plate but has a grid of beams and columns running through it. The beams and columns provide extra support and help distribute the slab's weight.
Ribbed slabs
The ribbed slab comprises a series of ribs running parallel to each other. These ribs provide extra support and help distribute the slab's weight. The ribbed slab is usually used for heavier loads or when the soil conditions are not suitable for the other two types.
Conventional raft slab
It is suitable for most soil conditions and is easy to construct. However, it is not ideal for very soft or very uneven soils.
Raft foundations
A raft foundation is a type of foundation that spreads the weight of a building over a large area, often the entire footprint of the building. Raft foundations are typically used in areas where the soil is not strong enough to support the weight of the building or where the water table is high.
Raft slabs are one of the most popular types of foundation used in construction, particularly in areas where the soil is unsuitable for supporting traditional strip or pad foundations.
The making of raft foundations
Raft foundations are typically made of concrete, although they can also be made of other materials such as steel or timber. The concrete is usually reinforced with steel rebar or mesh.
Raft foundations can be either monolithic (poured all at once) or composite (made of several different materials). Monolithic raft foundations are typically made of concrete, while composite raft foundations can be made of concrete, steel, or timber.
Cemex Concrete Company can design raft foundations to be flat or sloped. We can also design them to have a variety of different cross-sections, depending on the needs of the building they are supporting.
Poured concrete raft slabs
Poured concrete raft slabs are made by pouring concrete into a mould on site. They are quick and easy to install and are very strong and durable. However, they are also cumbersome, so they are only suitable for some soil types.
Precast concrete raft slabs
Precast concrete raft slabs are made in a factory and then transported to the site. However, they are also cumbersome, so they are not suitable for all types of soil. Cemex can quickly and easily install precast concrete raft slabs, making them very strong and durable.
Timber raft slabs
Timber raft slabs are made from timber beams bolted together on site. They are quick, easy to install, and much lighter than concrete raft slabs. However, they are not as strong or durable as concrete raft slabs.
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Creating a strong foundation for your project made easy
At CEMEX, we are committed to creating lasting solutions to ensure excellence through all stages of the concreting process.
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Other Types of Raft Slabs in Melbourne
Raft slabs can also differ according to the type of material used to make them. Steel raft slabs are made from steel beams bolted together on site, aluminium raft slabs are made from aluminium beams that are bolted together on site, and piled raft slabs are suitable for very soft or very uneven soils. Cemex Concrete Company can also make beam and block raft slabs, plate raft slabs, and mat raft slabs.
Customised Raft Slabs in Melbourne
At Cemex, we know that the best type of raft slab for your project will depend on many factors, including the load requirements, soil conditions, and your budget. We can customise our raft slabs to suit your individual requirements, and we always use the highest quality materials to ensure a long-lasting and durable finish. We'll be more than happy to discuss your needs and provide you with a competitive quote.
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