Calcium formate is a new low-temperature early strength accelerator. For cement, calcium formate can significantly improve the early strength and shorten the setting time. It is widely used in mortar (tile adhesive, cement-based plastering mortar, repair mortar, waterproof mortar) flooring, concrete and other industries.

甲酸钙即可以加快水泥硬化速度，捉高早期强度，又避免了在冬季或低温潮湿条件下施工凝结速度过慢的问题，使水泥产品尽早提高强度投入使用，甲酸钙对早期强度贡献较大。

Calcium formate can not only accelerate the hardening speed of cement and improve the early strength, but also avoid the problem of too slow setting speed during construction in winter or under low temperature and humid conditions, so as to improve the strength of cement products and put them into use as soon as possible. Calcium formate makes a great contribution to the early strength.

在夏季甲酸钙掺量通常为水泥的0.3％～0.7％，在冬季甲酸钙的用量应随温度的下降而增加，一般为0.5％～1％，不宜超过2.5％，针对干粉砂浆中使用的硅酸盐水泥早期强度低后期强度高的特点，在产品中适量添加甲酸钙，对提高早期强度十分有益。

In summer, the content of calcium formate is usually 0.3% ~ 0.7% of cement, and in winter, the content of calcium formate should increase with the decrease of temperature, generally 0.5% ~ 1%, and should not exceed 2.5%. According to the characteristics of low early strength and high later strength of Portland cement used in dry powder mortar, adding an appropriate amount of calcium formate to the product is very beneficial to improve the early strength.