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  2. Concrete leveling - Wikipedia

    en.wikipedia.org/wiki/Concrete_leveling

    In civil engineering, concrete leveling is a procedure that attempts to correct an uneven concrete surface by altering the foundation that the surface sits upon. It is a cheaper alternative to having replacement concrete poured and is commonly performed at small businesses and private homes as well as at factories, warehouses, airports and on roads, highways and other infrastructure.

  3. Lift slab construction - Wikipedia

    en.wikipedia.org/wiki/Lift_slab_construction

    Lift slab construction (also called the Youtz-Slick Method) is a method of constructing concrete buildings by casting the floor or roof slab on top of the previous slab and then raising (jacking) the slab up with hydraulic jacks. This method of construction allows for a large portion of the work to be completed at ground level, negating the ...

  4. House raising - Wikipedia

    en.wikipedia.org/wiki/House_raising

    The process is the first step in structure relocation in which the building is moved to a different location. [1] House raising may also be a part of a renovation to build a foundation under an existing house or make a house larger by adding a new floor level. Often employed in areas that are prone to flooding and storm damage, this process can ...

  5. Raise borer - Wikipedia

    en.wikipedia.org/wiki/Raise_borer

    One impressive use of raise boring is the 7.1 m diameter shafts for Sasol's Middelbult and Bosjesspruit Mines in South Africa. [2] The boxhole borer (or machine roger) is a variant of a raise borer that is used when there is not enough space on the higher of the two levels to be connected. The boxhole borer is set up on the lower level, drills ...

  6. Basement - Wikipedia

    en.wikipedia.org/wiki/Basement

    Basement walls may need to have the surrounding earth backfilled around them to return the soil to grade. A water stop, some gravel and a french drain may need to be used to prevent water from entering the basement at the bottom of the wall. Walls below grade may need to be sealed with an impervious coating (such as tar) to

  7. Prestressed concrete - Wikipedia

    en.wikipedia.org/wiki/Prestressed_concrete

    Pre-tensioned concrete is a variant of prestressed concrete where the tendons are tensioned prior to the concrete being cast. [1]: 25 The concrete bonds to the tendons as it cures, following which the end-anchoring of the tendons is released, and the tendon tension forces are transferred to the concrete as compression by static friction.

  8. Asphalt concrete - Wikipedia

    en.wikipedia.org/wiki/Asphalt_concrete

    Asphalt batch mix plant A machine laying asphalt concrete, fed from a dump truck. Asphalt concrete (commonly called asphalt, [1] blacktop, or pavement in North America, and tarmac or bitumen macadam in the United Kingdom and the Republic of Ireland) is a composite material commonly used to surface roads, parking lots, airports, and the core of embankment dams. [2]

  9. Washington National Cathedral - Wikipedia

    en.wikipedia.org/wiki/Washington_National_Cathedral

    This portal is approached by the Pilgrim Steps, a long flight of steps 40 feet (12 m) wide. Most of the building is constructed using a buff-colored Indiana limestone over a traditional masonry core. Structural, load-bearing steel is limited to the roof's trusses (traditionally built of timber); concrete is used significantly in the support ...