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  2. Concrete cover - Wikipedia

    en.wikipedia.org/wiki/Concrete_cover

    Concrete cover, in reinforced concrete, is the least distance between the surface of embedded reinforcement and the outer surface of the concrete (ACI 130). The concrete cover depth can be measured with a cover meter. The purpose of concrete cover is to protect the reinforcement from corrosion, fire, and other potential damage.

  3. Hollow structural section - Wikipedia

    en.wikipedia.org/wiki/Hollow_structural_section

    A hot-rolled HSS-box section cut open with a bandsaw, demonstrating residual stress. A hollow structural section (HSS) is a type of metal profile with a hollow cross section. The term is used predominantly in the United States, or other countries which follow US construction or engineering terminology.

  4. Reinforced concrete - Wikipedia

    en.wikipedia.org/wiki/Reinforced_concrete

    The minimum concrete cover is normally regulated by design or building codes. If the reinforcement is too close to the surface, early failure due to corrosion may occur. The concrete cover depth can be measured with a cover meter. However, carbonated concrete incurs a durability problem only when there is also sufficient moisture and oxygen to ...

  5. Pasir Panjang Pillbox - Wikipedia

    en.wikipedia.org/wiki/Pasir_Panjang_Pillbox

    Pasir Panjang Pillbox is a strengthened-concrete defensive structure from World War II, located in Pasir Panjang in the southwestern area of Singapore. Background and history [ edit ]

  6. Corrugated galvanised iron - Wikipedia

    en.wikipedia.org/wiki/Corrugated_galvanised_iron

    Corrugated galvanised iron roofing in Mount Lawley, Western Australia A corrugated iron church (or tin tabernacle) in Kilburn, London 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 ...

  7. Reinforced concrete structures durability - Wikipedia

    en.wikipedia.org/wiki/Reinforced_concrete...

    Once this is defined, design code gives standard prescriptions for w/c ratio, the cement content, and the thickness of the concrete cover. This approach represents an improvement step for the durability design of reinforced concrete structures, it is suitable for the design of ordinary structures designed with traditional materials (Portland ...

  8. Box girder bridge - Wikipedia

    en.wikipedia.org/wiki/Box_girder_bridge

    A box girder bridge, or box section bridge, is a bridge in which the main beams comprise girders in the shape of a hollow box. The box girder normally comprises prestressed concrete, structural steel, or a composite of steel and reinforced concrete. The box is typically rectangular or trapezoidal in cross-section.

  9. List of DIN standards - Wikipedia

    en.wikipedia.org/wiki/List_of_DIN_standards

    This is an incomplete list of DIN standards.. The "STATUS" column gives the latest known status of the standard.. If a standard has been withdrawn and no replacement specification is listed, either the specification was withdrawn without replacement or a replacement specification could not be identified.