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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). [1] [2]
The precast concrete slab has tubular voids extending the full length of the slab, typically with a diameter equal to the 2/3–3/4 the thickness of the slab. This makes the slab much lighter than a massive solid concrete floor slab of equal thickness or strength. The reduced weight also lowers material and transportation costs.
Concrete paver blocks laid in a circular pattern Concrete paver blocks in a rectangular pattern. A paver is a paving stone, sett, tile, [1] brick [2] or brick-like piece of concrete commonly used as exterior flooring.
Patios are most commonly paved with concrete or stone slabs (also known as paving flags). They can also be created using bricks, block paving, tiles, cobbles or gravel. Other kinds of patio materials these days include alumawood, aluminum, acrylic and glass. Other options include concrete, stamped concrete, and aggregate concrete.
Slab-on-grade foundations should not be used in areas with expansive clay soil. While elevated structural slabs actually perform better on expansive clays, it is generally accepted by the engineering community that slab-on-grade foundations offer the greatest cost-to-performance ratio for tract homes. Elevated structural slabs are generally ...
Stone slab sidewalk Stone slabs called flagstones or flags are sometimes used where an attractive appearance is required, as in historic town centers. For example, in Melbourne , Australia , bluestone has been used to pave the sidewalks of the CBD since the Gold rush in the 1850s because it proved to be stronger, more plentiful and easier to ...