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  2. Power trowel - Wikipedia

    en.wikipedia.org/wiki/Power_trowel

    Ride on power trowels range in size from 1.8 m (6 ft) machines weighing 270–320 kg (600–700 lb), up to 3.7 m (12 ft) machines weighing over 910 kg (2,000 lb). Power ranges from small 10 kW (13 hp) single cylinder engines, all the way up to 70 kW (100 hp) multi fuel V8 engines.

  3. Pick-and-place machine - Wikipedia

    en.wikipedia.org/wiki/Pick-and-place_machine

    Tape-and-reel feed mechanism used to load components into a pick-and-place machine SMD pick-and-place machine (with simulated motion blurs) Surface-mount technology (SMT) component placement systems, commonly called pick-and-place machines or P&Ps, are robotic machines which are used to place surface-mount devices (SMDs) onto a printed circuit ...

  4. Surface-mount technology - Wikipedia

    en.wikipedia.org/wiki/Surface-mount_technology

    Surface-mount technology (SMT), originally called planar mounting, [1] is a method in which the electrical components are mounted directly onto the surface of a printed circuit board (PCB). [2] An electrical component mounted in this manner is referred to as a surface-mount device ( SMD ).

  5. Indian Concrete Institute - Wikipedia

    en.wikipedia.org/wiki/Indian_Concrete_Institute

    Indian Concrete Institute (ICI) is the national organisation of engineering professionals, employed in concrete construction and associated research in India. It was founded in 1982 in Chennai following a resolution in the International Seminar and Exhibition on 'Modernization of Concrete Practices ' organised jointly by the Structural Engineering Research Centre (SERC) and Anna University.

  6. Falling weight deflectometer - Wikipedia

    en.wikipedia.org/wiki/Falling_weight_deflectometer

    FWD data is most often used to calculate stiffness-related parameters of a pavement structure. The process of calculating the elastic moduli of individual layers in a multi-layer system (e.g. asphalt concrete on top of a base course on top of the subgrade) based on surface deflections is known as "backcalculation", as there is no closed-form solution.

  7. Pavement milling - Wikipedia

    en.wikipedia.org/wiki/Pavement_milling

    Using milling instead of other methods, such as rolling them in, means that the rumble strips can be added at any time after the road surface has hardened. [8] Another example is to modify the roto-milling head to create slots in concrete slabs for the dowel bar retrofit process. The typical process is to saw cut and jackhammer out the slots ...

  8. 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 ...

  9. Concrete mixer - Wikipedia

    en.wikipedia.org/wiki/Concrete_mixer

    A typical concrete mixer uses a revolving drum to mix the components. For smaller volume works, portable concrete mixers are often used so that the concrete can be made at the construction site, giving the workers ample time to use the concrete before it hardens. An alternative to a machine is mixing concrete by hand.

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