The appearance of calcium formate is a white crystalline solid, calcium formate has good solubility in water, with a certain degree of hydrophilicity. The maximum dose of calcium formate was 2.5% , humidity ≤0.5, and free acid ≤0.12. Its outstanding advantage is to shorten the setting time, mold release time faster, cement can be put into use as soon as possible, greatly improving the hardness of cement.
Because of the special properties of calcium formate, most of it is used in winter, when the temperature is low, the setting time of cement will be prolonged. As a new type of low temperature solidification accelerator, calcium formate can make the cement put into use as soon as possible, shorten the construction time and improve the working efficiency. Not only that, but it can also completely dry the moisture in the cement, thus greatly improving the hardness of the cement, especially in winter when the temperature is low.
Calcium formate is packaged in paper-plastic bags or cardboard drums lined with polyethylene plastic bags. It needs to be stored in a sealed environment and placed in a dry and ventilated place. To avoid the destruction of the powder form, which affects the performance of the product, when the temperature gradually decreased, the solidification rate will be slower and therefore the amount of calcium formate will increase.
It is precisely because of the characteristics of calcium formate, so it is suitable for the production of concrete engineering and construction of a shorter time to meet the time requirements. Calcium formate is also used in normal concrete and prestressed concrete construction. It is also widely used in civil engineering, construction, transportation and water conservancy in various fields. The lower the temperature, the more obvious the construction effect.