Is calcium formate corrosive to steel bars?

Calcium formate is an additive that has no corrosive effect on steel reinforcement. Its molecular formula is C₂H₂CaO₄. It mainly accelerates the hydration of tricalcium silicate in cement, thereby enhancing the early strength of cement mortar. The impact of calcium formate on mortar strength mainly depends on the content of tricalcium silicate in the cement: if the tricalcium silicate content is low, it will not reduce the late strength of the mortar, and it also has a certain antifreeze effect at low temperatures.

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Post time: Dec-15-2025