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  2. Power screed - Wikipedia

    en.wikipedia.org/wiki/Power_screed

    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.

  3. Self-leveling concrete - Wikipedia

    en.wikipedia.org/wiki/Self-leveling_concrete

    Self-leveling concrete was invented in 1952 by Axel Karlsson from Sweden. The first product was a combination of wood glue, fine sand and cement with additives. [1] It was called flytspackel, which directly translates to "floating putty". The term self-leveling can be traced back to a patent applied by the company Lafarge in 1997. [2]

  4. 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.

  5. Self-consolidating concrete - Wikipedia

    en.wikipedia.org/wiki/Self-consolidating_concrete

    Self-consolidating concrete or self-compacting concrete (SCC) [1] is a concrete mix which has a low yield stress, high deformability, good segregation resistance (prevents separation of particles in the mix), and moderate viscosity (necessary to ensure uniform suspension of solid particles during transportation, placement (without external compaction), and thereafter until the concrete sets).

  6. Superplasticizer - Wikipedia

    en.wikipedia.org/wiki/Superplasticizer

    Their addition allows to decrease the water-to-cement ratio of concrete or mortar without negatively affecting the workability of the mixture. It enables the production of self-consolidating concrete and high-performance concrete. The water–cement ratio is the main factor determining the concrete strength and its durability. Superplasticizers ...

  7. College Football Playoff format: Bowl game times, dates and ...

    www.aol.com/college-football-playoff-format-bowl...

    The final rankings for the College Football Playoff are days from being released. Here are the bowls that make up the newly formatted CFP.

  8. 'Dismembered' body of Delaware woman reported missing found ...

    www.aol.com/dismembered-body-delaware-woman...

    A Delaware woman who was reported missing last week after she didn't show up to work for several days was found dismembered in a car over the weekend, police said.

  9. Walmart accused of illegally opening costly accounts for drivers

    www.aol.com/walmart-accused-illegally-opening...

    Walmart and Branch Messenger, a payments platform, accused of deceiving workers about pay from retailer for two years.

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