Power screed

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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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Concrete

History|

* Ancient Roman architecture
* Roman architectural revolution
* Roman concrete
* Roman engineering
* Roman technology

Composition|

* Cement
* Calcium aluminate
* Energetically modified
* Portland
* Rosendale
* Water
* Water–cement ratio
* Aggregate
* Reinforcement
* Fly ash
* Ground granulated blast-furnace slag
* Silica fume
* Metakaolin

Production|

* Plant
* Concrete mixer
* Volumetric mixer
* Reversing drum mixer
* Slump test
* Flow table test
* Curing
* Concrete cover
* Cover meter
* Rebar

Construction|

* Precast
* Cast-in-place
* Formwork
* Climbing formwork
* Slip forming
* Screed
* Power screed
* Finisher
* Grinder
* Power trowel
* Pump
* Float
* Sealer
* Tremie

Science|

* Properties
* Durability
* Degradation
* Environmental impact
* Recycling
* Segregation
* Alkali–silica reaction

Types|

* AstroCrete
* Fiber-reinforced
* Filigree
* Foam
* Lunarcrete
* Mass
* Nanoconcrete
* Pervious
* Polished
* Polymer
* Prestressed
* Ready-mix
* Reinforced
* Roller-compacting
* Self-consolidating
* Self-leveling
* Sulfur
* Tabby
* Translucent
* Waste light
* Aerated
* AAC
* RAAC

Applications|

* Slab
* waffle
* hollow-core
* voided biaxial
* slab on grade
* Concrete block
* Step barrier
* Roads
* Columns
* Structures

Organizations|

* American Concrete Institute
* Concrete Society
* Institution of Structural Engineers
* Indian Concrete Institute
* Nanocem
* Portland Cement Association
* International Federation for Structural Concrete

Standards|

* Eurocode 2
* EN 197-1
* EN 206-1
* EN 10080

See also|

* Hempcrete

* Category:Concrete

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