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  2. Concrete leveling - Wikipedia

    en.wikipedia.org/wiki/Concrete_leveling

    Once the void under the slab is filled, the pressure builds under the slab, lifting the concrete back into place. Once in place, the holes are filled with a color-matching grout. Benefits of mudjacking: Low-pressure lifting of slab; Finely controlled lifting of the slab; Possible to achieve higher compressive strength than foam leveling; Budget ...

  3. Lift slab construction - Wikipedia

    en.wikipedia.org/wiki/Lift_slab_construction

    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 ...

  4. Precast concrete lifting anchor system - Wikipedia

    en.wikipedia.org/wiki/Precast_concrete_lifting...

    F/n = 23 kN per anchor during initial lift (n = 2 lifting anchors) Transport loads in the yard and on-site. Suction due to casting bed adhesion is not considered, as the calculation takes into account the lifting device dynamic coefficient. S = (W x Ksl x Kd) / n = (64.8 x 1.16 x 1.2) / 2 = 45.1 kN load resistance required per anchor.

  5. Foam concrete - Wikipedia

    en.wikipedia.org/wiki/Foam_concrete

    Foam concrete is a versatile building material with a simple production method that is relatively inexpensive compared to autoclave aerated concrete. [1] Foam concrete compounds utilising fly ash in the slurry mix is cheaper still, and has less environmental impact. Foam concrete is produced in a variety of densities from 200 kg/m 3 to 1,600 kg ...

  6. Spray foam - Wikipedia

    en.wikipedia.org/wiki/Spray_foam

    Spray foam. Spray foam insulation extruding from a duct. Spray foam (expanding foam in the UK) is a chemical product created by two materials, isocyanate and polyol resin, which react when mixed with each other and expand up to 30-60 times its liquid volume after it is sprayed in place.

  7. 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.

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