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  2. Cured-in-place pipe - Wikipedia

    en.wikipedia.org/wiki/Cured-in-place_pipe

    Cured-in-place pipe. A cured-in-place pipe (CIPP) is a trenchless rehabilitation method used to repair existing pipelines. It is a jointless, seamless pipe lining within an existing pipe. As one of the most widely used rehabilitation methods, CIPP has applications in sewer, water, gas, chemical and district heating pipelines ranging in diameter ...

  3. Calcium aluminate cements - Wikipedia

    en.wikipedia.org/wiki/Calcium_aluminate_cements

    ALAG (ALuminous AGgregate) is a synthetic calcium aluminate aggregate manufactured by the fusion of bauxite and limestone into a partially re-crystallized aggregate of approximately 40% alumina. It is essentially Fondu clinker, crushed and sized into grades commonly needed by concrete and castable formulators.

  4. Cement-mortar lined ductile iron pipe - Wikipedia

    en.wikipedia.org/wiki/Cement-mortar_lined...

    Cement-mortar lined ductile iron pipe is a ductile iron pipe with cement lining on the inside surface, and is commonly used for water distribution. Cement-mortar lined ductile iron pipe is governed by standards set forth by DIPRA (Ductile Iron Pipe Research Association), and was first used in 1922 in Charleston, South Carolina .

  5. Rain gutter - Wikipedia

    en.wikipedia.org/wiki/Rain_gutter

    Eaves gutter and downpipe. Decorative lead hopper head dated 1662, Durham Castle. A rain gutter, eavestrough, eaves-shoot or surface water collection channel is a component of a water discharge system for a building. [1] It is necessary to prevent water dripping or flowing off roofs in an uncontrolled manner for several reasons: to prevent it ...

  6. Prestressed concrete - Wikipedia

    en.wikipedia.org/wiki/Prestressed_concrete

    Prestressed concrete is a form of concrete used in construction. It is substantially "prestressed" (compressed) during production, in a manner that strengthens it against tensile forces which will exist when in service. [1][2]: 3–5 [3] This compression is produced by the tensioning of high-strength "tendons" located within or adjacent to the ...

  7. Ready-mix concrete - Wikipedia

    en.wikipedia.org/wiki/Ready-mix_concrete

    Concrete has a limited lifespan between batching / mixing and curing. This means that ready-mixed concrete should be placed within 30 to 45 minutes of the batching process to hold slump and mix design specifications in the US, [14] though in the UK, environmental and material factors, plus in-transit mixing, allow for up two hours to elapse. [15]

  8. Precast concrete - Wikipedia

    en.wikipedia.org/wiki/Precast_concrete

    A precast concrete walled house under construction An example of low-quality precast concrete with exposed dowels, connectors, indications of cracks, and malformations, even during its installation, Barangay Lantic, Carmona, Cavite, Philippines Interior view of the walls, supports, and roof of a precast commercial shop in Williston, North Dakota, US.

  9. Reinforced concrete - Wikipedia

    en.wikipedia.org/wiki/Reinforced_concrete

    Tensile strength (σt) Stronger than concrete. Reinforced concrete, also called ferroconcrete, is a composite material in which concrete 's relatively low tensile strength and ductility are compensated for by the inclusion of reinforcement having higher tensile strength or ductility.

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