How to Cure Concrete Work

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How to Cure Concrete Work
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Leave the form work used to create the concrete
formation

• The form work itself, if left in place, or on the
  underneath of a suspended slab, or around a
  concrete column will stop the concrete drying out
  too quickly, and so can be said to be a curing
  agent.

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Use ponding

• This method has the following disadvantages
• It takes a fair bit of work to do, and then quite
  often a breach occurs and the water runs off the
  slab.
• Usually this can only be done for a few days as
  it inhibits other work and the pressure is
  usually on to get the walls up.
• A possible drawback of this method, especially if
  soil or clay is used, is the chance of staining
  the concrete.

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Spray water onto the formation

• A simpler way is to just keep water sprayed onto
  the slab with garden sprinklers or hand held hose
  pipes. Following are some disadvantages that you
  need to consider if you intend to use this
  method
• This method is very wasteful of water
• Again, it can only be done for a short period
  usually. If you hand water, it should be wet all
  the time, that is you should not let it dry out
  at all, almost impossible to do.

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Use some sort of cover that holds and retains
sprayed on water

• The sand cover or hessian has to be kept wet and
  if they do dry out they actually aid in sucking
  moisture out of the concrete.

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Use a plastic shield

• This is one of the most efficient methods of
  curing concrete work. Usually a spray from a hose
  pipe is used to wet the surface and the plastic
  is laid on, with generous laps at the joints. Use
  timber or cement blocks to keep the plastic in
  position, rather than taping the joints. To a
  certain extent the plastic can be used a few
  times. A major benefit of plastic is that it does
  not stop other work, like building the walls, and
  so it can be left in position for weeks if need
  be.

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Use concrete curing oils or curing compounds

• These compounds and oils now come in a variety of
  types. Used the water soluble waxy emulsions that
  can be sprayed onto the fresh concrete with a
  hand pump type spray.

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