Calcium Chloride Concrete Additive

Use this material when a rapid set is desired or when a quick return or access for the area is required.

Calcium chloride concrete additive.

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 morris chemicals s e r t s calcium chloride can accelerate cement hydration reducing its set time. Otherwise it should be added at the job site mixing for at least three minutes or 30 revolutions of the mixer whichever is longer. Sakrete cement mix accelerator is a calcium chloride based product designed to accelerate the set time of concrete mortar or any laporte cement based product. But its use may be limited by building codes or prohibited by some specifications.

Also used when freezing temperatures are anticipated. The beneficial effects of calcium chloride will be even more pronounced at lower temperatures. But many specifications prohibit its use. Aci318 08 building code requirements for structural concrete with some exceptions allows calcium chloride as an accelerating admixture for cast in place concrete.

If dry calcium chloride is used it should be. Calcium chloride is the most effective and least expensive cold weather accelerator for concrete. Calcium chloride was used as an accelerating admixture in concrete up until the mid 1970s. When ready mixed concrete is used calcium chloride should be added at the plant site if the concrete is to be discharged within one hour after the start of mixing.