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  2. Tremie - Wikipedia

    en.wikipedia.org/wiki/Tremie

    Assembled tremie placing concrete underwater Hopper, pipes and lifting cap components of a tremie concrete placement tube. A tremie is a watertight pipe, usually of about 250 mm inside diameter (150 to 300 mm), [1] with a conical hopper at its upper end above the water level. It may have a loose plug or a valve at the bottom end.

  3. Pipe plug - Wikipedia

    en.wikipedia.org/wiki/Pipe_plug

    Pipe plugs are used with supplementary accessories such as air and water hoses, air and pressure control devices, gauges, adapters and chains depending on the type of the pipe plug and the process. Auxiliary equipment like compressors for inflating the pipe plugs, water tanks for filling the pipeline and pumps for some cases must be used.

  4. Threaded pipe - Wikipedia

    en.wikipedia.org/wiki/Threaded_pipe

    The seal provided by a threaded pipe joint depends upon multiple factors: the labyrinth seal created by the threads; a positive seal between the threads created by thread deformation when they are tightened to the proper torque; and sometimes on the presence of a sealing coating, such as thread seal tape or a liquid or paste pipe sealant such ...

  5. 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 .

  6. Molding (decorative) - Wikipedia

    en.wikipedia.org/wiki/Molding_(decorative)

    Baseboard, "base moulding" or "skirting board": Used to conceal the junction of an interior wall and floor, to protect the wall from impacts and to add decorative features. A "speed base" makes use of a base "cap moulding" set on top of a plain 1" thick board, however there are hundreds of baseboard profiles. Baton: See Torus

  7. Prestressed concrete cylinder pipe - Wikipedia

    en.wikipedia.org/wiki/Prestressed_concrete...

    Prestressed concrete cylinder pipe (PCCP) is a common variety of large-diameter concrete pressure pipe used for transporting water and wastewater. PCCP is typical manufactured according to the American Water Works Association (AWWA) standard C304. [ 1 ]

  8. Formwork - Wikipedia

    en.wikipedia.org/wiki/Formwork

    Formwork is molds into which concrete or similar materials are either precast or cast-in-place. In the context of concrete construction, the falsework supports the shuttering molds. In specialty applications formwork may be permanently incorporated into the final structure, adding insulation or helping reinforce the finished structure.

  9. Types of concrete - Wikipedia

    en.wikipedia.org/wiki/Types_of_concrete

    Regular concrete is the lay term for concrete that is produced by following the mixing instructions that are commonly published on packets of cement, typically using sand or other common material as the aggregate, and often mixed in improvised containers. The ingredients in any particular mix depends on the nature of the application.

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