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[[File:Vibrationsbohle web.jpg|thumb|220px|[[Wacker Neuson]] Power concrete screed P 35A]]
[[File:Vibrationsbohle web.jpg|thumb|220px|A power screed being used to flatten concrete]]


'''Power concrete screeds''' can be used in place of a man powered [[concrete screed|screed bar]] to strike off excess [[concrete]]. Concrete is poured from a wet mix of [[cement]], [[sand]], [[construction aggregate|aggregate]] and [[water]]. Prior to the mix drying, the concrete should be smoothed out on the desired surface. A power screed assists in the smoothing out process by leveling out and/or vibrating the wet mixture. There are friction screeds or "roller" screeds that level the concrete which can be powered by gas, electricity or hydraulics. The compaction performance of the power concrete screed is mainly determined by the centrifugal force of the vibration force and only to a minor extent by the static weight.
A '''power concrete screed''' is a tool used to smooth and level freshly poured [[concrete]] surfaces. It can be used in place of a man-powered [[concrete screed|screed bar]] to strike off excess concrete. A power screed works by consolidating and/or vibrating the wet concrete mixture. The screed moves back and forth, as friction screeds or "roller" screeds level the concrete, filling holes and lowering any high spots.<ref name="handbook">{{cite book |last1=Breed |first1=Peter J. |title=Pavements Maintenance Specialist (AFSC 55150): Concrete pavements |publisher=Extension Course Institute, Air University |date=1984 |url=https://books.google.com/books?id=ifit8Er_IecC |access-date=11 April 2023}}</ref> Power screeds can be powered by gas, electricity or hydraulics.{{citation needed|date=April 2023}}


In concrete, prior to the mix drying, the concrete should be smoothed out on the desired surface. The compaction performance of the power concrete screed is mainly determined by the centrifugal force of the vibration force and only to a minor extent by the static weight.{{citation needed|date=April 2023}}
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Latest revision as of 06:44, 11 July 2023

A power screed being used to flatten concrete

A power concrete screed is a tool used to smooth and level freshly poured concrete surfaces. It can be used in place of a man-powered screed bar to strike off excess concrete. A power screed works by consolidating and/or vibrating the wet concrete mixture. The screed moves back and forth, as friction screeds or "roller" screeds level the concrete, filling holes and lowering any high spots.[1] Power screeds can be powered by gas, electricity or hydraulics.[citation needed]

In concrete, prior to the mix drying, the concrete should be smoothed out on the desired surface. The compaction performance of the power concrete screed is mainly determined by the centrifugal force of the vibration force and only to a minor extent by the static weight.[citation needed]

References

[edit]
  1. ^ Breed, Peter J. (1984). Pavements Maintenance Specialist (AFSC 55150): Concrete pavements. Extension Course Institute, Air University. Retrieved 11 April 2023.
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