What is types of concrete slabs?

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Slab-on-ground

Slab-on-ground is the most common and has two variants: conventional slabs with deep excavated beams and waffle pod slabs, which sit near ground level and have a grid of expanded polystyrene foam pods as void formers creating a maze of beams in between. Conventional slabs can be insulated beneath the broad floor panels; waffle pods are by definition insulated beneath. Both may benefit from slab edge insulation.

Suspended slab

Suspended slabs are formed and poured in situ, with either removable or ‘lost’ non-loadbearing formwork, or permanent formwork which forms part of the reinforcement.

Precast slab

Precast slabs are manufactured off site and craned into place, either in finished form or with an additional thin pour of concrete over the top. They can be made from conventional or post-tensioned reinforced concrete, or from autoclaved aerated concrete (AAC) (see Autoclaved aerated concrete).

Reinforced concrete slabs may be one way slab or 2way slab

The one having B.M is only one direction the lonfer is called 1way slab

The one having B.M in both direction is called 2way….

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A concrete slab is a common structural element of modern buildings. Horizontal slabs of steel reinforced concrete, typically between 4 and 20 inches (100 and 500 millimeters) thick, are most often used to construct floors and ceilings, while thinner slabs are also used for exterior paving. Sometimes these thinner slabs, ranging from 2 inches (51 mm) to 6 inches (150 mm) thick, are called mud slabs, particularly when used under the main floor slabs[1] or in crawl spaces.[2]

In many domestic and industrial buildings a thick concrete slab, supported on foundations or directly on the subsoil, is used to construct the ground floor of a building. These can either be "ground-bearing" or "suspended" slabs. In high rise buildings and skyscrapers, thinner, pre-cast concrete slabs are slung between the steel frames to form the floors and ceilings on each level.

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Agree Mr.Shams

Thank you for the invitation. Sorry, I have no knowledge about it.

I echo the answers of Eng Yousef and Eng Shams.