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Curing

Photo of a concrete slab soaked in water. The concrete must be kept moist immediately after finishing. This ensures that the chemical bonding between the cement, aggregate and sand occurs. Curing produces much stronger concrete and minimises surface cracks.

Methods of curing the concrete slab include:

  • soaking in water
  • spraying with water mist
  • covering with plastic or hessian
  • spraying with chemical compounds.

Pouring concrete during extremely hot windy days should be avoided as these conditions cause water loss.