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A concrete slab is a common structural element of modern buildings, consisting of a flat, horizontal surface made of cast concrete. Steel- reinforced slabs, typically between 100 and 500 mm thick, are most often used to construct floors and ceilings, while thinner mud slabs may be used for exterior paving ( see below ).
The usual mix is 1:3 and a colouring agent may be added to the mix to obtain a more attractive finish. The mix should be as dry as possible and the sand should be coarsely graded and clean to avoid shrinkage and cracking which might occur with a wet mix. The floor finish is carefully cured after laying.
Gypsum concrete is lightweight and fire-resistant. A 1.5-inch slab of gypsum concrete weighs 13 pounds per square foot versus 18 pounds per square foot for regular concrete. [10] Even though gypsum concrete weighs less, it still has the same compressive strength as regular concrete, based on its application as underlayment or top coat flooring ...
As the temperature climbs to 100 degrees, the soil around a slab or pier and beam foundations shrinks and begins to move around and settle. This movement compresses the foundation, often creating ...
A floating floor is a floor that does not need to be nailed or glued to the subfloor. [1] The term floating floor refers to the installation method, but is often used synonymously with laminate flooring. [2] It is applied now to other coverings such as floating tile systems and vinyl flooring in a domestic context. [3]
Lift slab construction (also called the Youtz-Slick Method) is a method of constructing concrete buildings by casting the floor or roof slab on top of the previous slab and then raising (jacking) the slab up with hydraulic jacks. This method of construction allows for a large portion of the work to be completed at ground level, negating the ...
This is an especially popular method for solid parquet flooring installations on concrete sub-floors. Additionally, engineered wood flooring may use the glue-down method as well. A layer of mastic is placed onto the sub-floor using a trowel similar to those used in laying ceramic tile.
The original foundation isn't strong or stable enough. The usage of the structure has changed. The properties of the soil supporting the foundation may have changed (possibly through subsidence) or were mischaracterized during design. The construction of nearby structures necessitates the excavation of soil supporting existing foundations.