Slab

slab

1. any of the outside parts of a log that are sawn off while the log is being made into planks

2. Mountaineering a flat sheet of rock lying at an angle of between 30° and 60° from the horizontal

3. Informal chiefly Brit an operating or mortuary table

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slab [slab]

(civil engineering)

That part of a reinforced concrete floor, roof, or platform which spans beams, columns, walls, or piers.

(electronics)

A relatively thick-cut crystal from which blanks are obtained by subsequent transverse cutting.

(engineering)

The outside piece cut from a log when sawing it into boards.

(geology)

A cleaved or finely parallel jointed rock, which splits into tabular plates from 1 to 4 inches (2.5 to 10 centimeters) thick. Also known as slabstone.

(hydrology)

A layer in, or the whole-thickness of, a snowpack that is very hard and has the ability to sustain elastic deformation under stress.

(materials)

A thin piece of concrete or stone.

(metallurgy)

A piece of metal, intermediate between ingot and plate, with the width at least twice the thickness.

(mining engineering)

A slice taken off the rib of an entry or room in a mine.

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slab

1. The upper part of a reinforced concrete floor, which is carried on beams below.

2. A concrete mat poured on subgrade, serving as a floor rather than as a structural member.

3. A flat thick slice or plate of material such as stone, wood, concrete, etc.

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Slab 

in metallurgy, a semifinished product consisting of a steel billet of rectangular cross section with a high width-to-height ratio (up to 15:1). Slabs are 400-2,500 mm wide and 75-600 mm high (thick). They are made from ingots by rolling in slabbing mills and, sometimes, in blooming and blooming-slabbing mills; they may also be prepared directly from molten metal by continuous casting. Slabs are used in the production of rolled sheet steel. [23–1785–]