Richmond Concrete Pros - Foundations
The foundation is the load carrying component of the structure and is there to provide stability to the structure. Its characteristics can be driven by the size of the building on top of it as well as the texture of the ground it is in. When done right, it distributes the load evenly across the structure which helps prevent uneven settling down the road. As you might imagine, placement , depth, and dimensions of the footing are crucial in providing the proper support for the foundation, and for the entire structure that will sit on it.
The construction of it is crucial to the type of foundation to properly prepare the subgrade in the final curing stages as well as to avoid problems with settling.
Concrete Options for Foundations
There are three main types of concrete foundations that can be used for new home construction. The type that is used will depend on the needs of the construction and the budget. The following offers insight into these three options and why they are used.
Slab-On-Grade Foundation: This type of foundation is primarily used in warmer climates where the ground does not freeze. First, a layer of gravel is put down and then a slab of concrete is poured that is several inches thick. To improve drainage, the slab is poured onto a layer of one of a number of different types of gravel. The concrete is made thicker at the edges to facilitate footing and reinforce the strength of the rods.
Frost-Protected: This method is used in areas where freezing ground is a problem. It can only be used with a heated structure and involves the installation of two sheets of strong polystyrene insulation. These sheets of insulation are laid flat against the gravel layer and on the outside of the wall to ensure the concrete slab foundation is protected against freezing, which can lead to cracks and other types of damage.
T-Shaped: This type of foundation is a traditional one that is used in areas of the country where the ground frequently freezes. With this type of foundation, the footing is poured wider than the exterior walls, so there is extra support for the foundation. The T-shaped foundation is first constructed, and then the walls are put in place. Once the walls have been erected, the concrete slab is poured.
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