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  2. Concrete slab - Wikipedia

    en.wikipedia.org/wiki/Concrete_slab

    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] In many domestic ...

  3. Sleeve (construction) - Wikipedia

    en.wikipedia.org/wiki/Sleeve_(construction)

    Sleeve (construction) Steel sleeve used to create a pipe penetration, with uneven rockwool packing, making an incomplete firestop. Notice the sleeves, fastened to the timber forms before the concrete is cast. improper sleeving in a drywall assembly. In construction, a sleeve is used both by the electrical and mechanical trades to create a ...

  4. Corrugated galvanised iron - Wikipedia

    en.wikipedia.org/wiki/Corrugated_galvanised_iron

    Corrugated iron in the Cobar Sound Chapel, used both for the roof and as the formwork for the concrete interior. Typical corrugated galvanised iron appearance, with visible large flake type patterns. The galvanised sheet is viewed from below and is supported by a piece of angle iron (painted white). Corrugated galvanised iron (CGI) or steel ...

  5. Expansion joint - Wikipedia

    en.wikipedia.org/wiki/Expansion_joint

    Expansion joint on a bridge. A expansion joint, or movement joint, is an assembly designed to hold parts together while safely absorbing temperature-induced expansion and contraction of building materials. They are commonly found between sections of buildings, bridges, sidewalks, railway tracks, piping systems, ships, and other structures.

  6. Expanded metal - Wikipedia

    en.wikipedia.org/wiki/Expanded_metal

    Expanded metal. Sheet of expanded metal. Expanded metal is a type of sheet metal which has been cut and stretched to form a regular pattern (often diamond-shaped) of mesh -like material. It is commonly used for fences and grates, and as metallic lath to support plaster or stucco.

  7. Portal frame - Wikipedia

    en.wikipedia.org/wiki/Portal_frame

    Portal frame is a construction technique where vertical supports are connected to horizontal beams or trusses via fixed joints with designed-in moment -resisting capacity. [1] The result is wide spans and open floors. Portal frame structures can be constructed using a variety of materials and methods.

  8. Column - Wikipedia

    en.wikipedia.org/wiki/Column

    A reinforced concrete column is extended by having the steel reinforcing bars protrude a few inches or feet above the top of the concrete, then placing the next level of reinforcing bars to overlap, and pouring the concrete of the next level. A steel column is extended by welding or bolting splice plates on the flanges and webs or walls of the ...

  9. Properties of concrete - Wikipedia

    en.wikipedia.org/wiki/Properties_of_concrete

    Concrete has a very low coefficient of thermal expansion, and as it matures concrete shrinks. All concrete structures will crack to some extent, due to shrinkage and tension. Concrete which is subjected to long-duration forces is prone to creep. The density of concrete varies, but is around 2,400 kilograms per cubic metre (150 lb/cu ft). [1]