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The beneficial effects of calcium chloride will be even more pronounced at lower temperatures. The accelerated cure rate measured as final concrete set time can be reduced by two-thirds when two per cent calcium chloride is added - two hours compared to six hours for plain concrete.
calcium chloride can accelerate cement hydration reducing its set time.
high initial strength
reduced final set time
fast form work turnaround
greater cost effectiveness
beneficial when used with fly ash or Microsilica
*Effect of Calcium Chloride on Portland Cements and Concretes.
COLD WEATHER CONSTRUCTION
Low temperatures slow concrete hydration. That is why an accelerator is needed to obtain high initial strength. Calcium Chloride accelerates hydration and gives concrete the strength and durability to meet specification requirements at lower temperatures.