Self-Leveling Concrete, also known as Clean Concrete or Ordinary Concrete, is an unreinforced concrete layer poured over the foundation soil before starting to pour the structural concrete for foundations or other structural elements. The primary purpose of this layer is to provide a clean and level working surface, improve load distribution, and ensure soil stability beneath the foundations.

Self-leveling concrete consists of a simple mix of cement, sand, gravel, and water, typically with a lower concentration mix ratio compared to structural concrete, as it doesn’t require a high strength level. It is poured at a thickness usually ranging from 5 to 10 cm, helping protect the foundations from contamination and moisture that could affect the durability of the structural concrete.

Self-leveling concrete is easy to pour and level, and acts as an insulator preventing direct contact between the soil and foundations, reducing the likelihood of harmful organic materials or salts leaching into the structural concrete. It is also used to define the dimensions of foundations and prepare the site for construction, contributing to improving execution accuracy and making the work on-site more manageable.

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