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Chloride based accelerating liquid. Complies with ASTM C-494 Type C specifications.


Specco A-10C is a liquid calcium chloride solution that is added to concrete mixes, to accelerate the normal set-time and to lower the freezing point of the mix. Additionally, A-10 increases the ultimate strength and improves the workability of the batch materials.


  • Reduces set times.
  • Improves workability.
  • Increases strength development in portland cement mixes at crucial early stages.
  • Can be used as a deicing solution for driveways or related flatwork.

COMPOSITION: 32% calcium chloride solution

DOSAGE: A-10C Accelerator may be added to the mix in the following proportions. The Portland Cement Association recommends that calcium chloride be added at no greater than 2% of the cement weight to avoid any long term corrosion problems with reinforcement steel. Therefore, A-10C Accelerator can be added at a maximum rate of approximately 2.4 quarts per bag of cement to keep the chloride at this 2% level. However, temperatures colder than 20°F may still require higher dosages to provide adequate set as shown below.

AVAILABLE IN: 1 Gallon (3.78 L), 5 gallon (18.9 L), 30 gallon (113.4 L), 55 gallon (208 L), 265 gallon (1000 L), 330 gallon (1245 L) containers.

Available info for A-10C ACCELERATOR:
Tech Data MSDS

Tech Data



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