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Another common type of shallow foundation is the slab-on-grade foundation where the weight of the structure is transferred to the soil through a concrete slab placed at the surface. Slab-on-grade foundations can be reinforced mat slabs, which range from 25 cm to several meters thick, depending on the size of the building, or post-tensioned ...
In civil engineering, concrete leveling is a procedure that attempts to correct an uneven concrete surface by altering the foundation that the surface sits upon. It is a cheaper alternative to having replacement concrete poured and is commonly performed at small businesses and private homes as well as at factories, warehouses, airports and on roads, highways and other infrastructure.
Slab-on-grade or floating slab foundations are a structural engineering practice whereby the concrete slab that is to serve as the foundation for the structure is formed from a mold set into the ground. The concrete is then placed into the mold, leaving no space between the ground and the structure.
Waffle slab foundations adhere to International Building Code requirements. By 2008, most states put into effect the changes adopted in the 2006 IBC and, in regards to foundations, the on-grade mat foundation has become a more attractive design because, as an engineered system, it already accommodates the 2008 design recommendations, and required no major modifications to bring it into compliance.
However, this study concerned hollow concrete blocks and its results are unverified for concrete slabs. The actual value of k varies significantly in practice, and is usually between 0.8 and 2.0 W m −1 K −1. [8] This is relatively high when compared to other materials, for example the conductivity of wood may be as low as 0.04 W m −1 K −1.
In the USA, crawl space is often built when building a basement would be impractical. A crawl space can also substitute for a concrete slab foundation that would hinder building inspections. [1] The crawl space's functions include providing access to repair plumbing, electrical wiring, and heating and cooling systems without the need for ...
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